@article {740, title = {Study to Analyze the Effect of Online Reviews and Smart Phone Buying Behaviour of Customers}, journal = {Journal of Digital Information Management}, volume = {22}, year = {2024}, month = {03/2024}, pages = {8-16}, chapter = {8}, abstract = {

Consumer behaviour towards mobile phones is increasingly becoming a focus of marketing research. In particular, consumer buying behaviour in the mobile phones industry, and online reviews of the existing customers from adoption motivation to post-usage behaviour has become a significant focus of research in the field of marketing. The results of the research confirm that online reviews play a vital role and influence consumer behaviour towards mobile phone purchase decisions by affecting their perception, motivation, and lifestyle. India is one of the fastest-growing economies in the world, and the mobile phone industry is growing very fast. For consumers, mobile phones have become essential parts of personal and business life. There is a continuous increase in disposable income; there has been a major shift in the attitude and aspirations of consumers. This research analyses the influence of online reviews and buying behaviour in mobile phone purchases. The recent growth of mobile phone usage is an observable fact that crosses all age and gender boundaries. Hence, this research explores through quantitative analysis some of the key factors believed to affect consumers{\textquoteright} attitudes and behaviours towards mobile phone purchases.

}, doi = {https://doi.org/10.6025/jdim/2024/22/1/8-16}, url = {https://www.dline.info/fpaper/jdim/v22i1/jdimv22i1_2.pdf}, author = {Nitesh Kanojiya and Pooja Sharma} } @article {748, title = {A Step towards Semantic Digital Library in the Arabic Region-}, journal = {Journal of Digital Information Management}, volume = {21}, year = {2023}, month = {06/2023}, pages = {29-38}, chapter = {29}, abstract = {

The use of semantic web technologies is very limited in Arab libraries, even with the existence of important historical and literary documents, and the great digitization movement now, the documents are still trapped within the databases of the separated libraries and are not visible to search engines. The research aims to Study the applications of semantic web technologies in catalogs of digital, hybrid libraries and catalogs of public libraries, exploring the main ontologies and conceptual Data models used in the field, and the possibilities of reusing them with Arab libraries, or the need to build new ontologies, studying the necessary steps, tools, and best practices, define the difficulties and challenges facing the Arabic semantic library and searching for possible technical solutions, our experiments target the heterogeneous databases of small, medium or large libraries, considering that some Arabic library catalogs are not following a standard Data Model, to contribute to the research and development of integrating bibliographic data of Arab libraries and moving towards the Semantic web and Linked Open Data.

}, doi = {https://doi.org/10.6025/jdim/2023/21/2/29-38}, url = {http://www.dline.info/download.php?sn=3756}, author = {Maysah Alsahar and Bassel Alkhatib} } @article {761, title = {A Survey of Sentiment Analysis in the Arabic Language}, journal = {Journal of Digital Information Management}, volume = {20}, year = {2022}, month = {03/2022}, pages = {10-24}, type = {Research}, chapter = {10}, abstract = {

\ {\^a}{\texteuro}{\oe}What the others think?{\^a}{\texteuro} is an essential question for individuals, companies, and governments. All need to know the public opinions to make their decisions wisely. In the last decade, sentiment analysis and opinion mining have become one of the growing research areas. This paper presents the current state of sentiment analysis and opinion mining research. In particular, researches those deals with the Arabic language. We tried to cover the techniques and methods in sentiment analysis and the challenges in the field. We described the leading methods and approaches that have been introduced in the literature for Arabic Sentiment analysis and opinion mining. The main contributions of this paper include the sophisticated categorizations of a large number of recent articles about Arabic Sentiment analysis. These articles are categorized according to their contributions in the various sentiment analysis techniques.

}, doi = {https://doi.org/10.6025/jdim/2022/20/1/10-24}, url = {http://www.dline.info/download.php?sn=3449}, author = {Kamel JAFAR and Bassel Alkhatib and Hazem WANNOUS} } @article {760, title = {A Systematic Review of Serious Games Relating to Cognitive Impairment and Dementia}, journal = {https://www.dline.info/jdim}, volume = {20}, year = {2022}, month = {03/2022}, pages = {1-9}, type = {Research}, chapter = {1}, abstract = {

\ Assessment, diagnosis, and cognitive stimulation of patients with different stages of cognitive impairment, including mild cognitive impairment (MCI) and Alzheimer{\^a}{\texteuro}{\texttrademark}s disease, has become a growing area of research. Recently, there has been an increase in interest in applying serious games for older people with neurodegenerative diseases. The present systematic review aims to investigate and classify serious games for detecting cognitive impairment in the elderly. In this review, searches focused on studies conducted between 2014 and 2021, of which twenty-four studies met the inclusion criteria. In this regard, we identified a few categories for the collective classification of serious games. We chose taxonomy of five classes to classify serious games dedicated to cognitive training and diagnosis among seniors: cognitive skills, objectives, game elements, motivation, and validation. We conclude that gamified techniques prove to be a valuable complement to traditional treatments because of the increased patient engagement.

}, doi = {https://doi.org/10.6025/jdim/2022/20/1/1-9}, url = {http://www.dline.info/download.php?sn=3448}, author = {Samiha Mezrar and Fatima Bendella} } @article {781, title = {A Study of Data Requirements for Data Mining Applications in Banking-}, journal = {Journal of Digital Information Management}, volume = {18}, year = {2020}, month = {06/2022}, pages = {109-117}, type = {Research}, chapter = {109}, abstract = {

There are many studies that have applied data mining to banking. However, the lack of proper data mounts a serious obstacle to the employment of data mining techniques by banks. This paper examines previous data mining research in the field of banking to extract all served entities and attributes required for analytical purposes, categorize these attributes and ultimately present a data model for analysis. After analyzing a wide range of data mining applications in banking, 28 entities with 423 attributes were identified and the final proposed entity-relationship model was drawn. Also, a checklist was provided based on the model for auditing data gap in banks and applied to a real case. The results of this paper can be seen as a supportive tool for improving bank{\^a}{\texteuro}\~{}s business intelligence maturity from the data perspective and enabling managers for analyzing data requirement of information systems.

}, doi = {https://doi.org/10.6025/jdim/2020/18/3/109-117}, url = {http://dline.info/fpaper/jdim/v18i3/jdimv18i3_3.pdf}, author = {Mina Ranjbarfard and Shahideh Ahmadi} } @article {794, title = {Subjective Sentiment Analysis for Arabic Newswire Comments-}, journal = {Journal of Digital Information Management}, volume = {17}, year = {2019}, month = {10/2019}, pages = {289-295}, type = {Research}, chapter = {289}, abstract = {

This paper presents an approach based on supervised machine learning methods to discriminate between positive, negative and neutral Arabic reviews in online newswire. The corpus is labeled for subjectivity and sentiment analysis (SSA) at the sentence-level. The model uses both count and TF-IDF representations and apply six machine learning algorithms; Multinomial Na{\"\i}ve Bayes, Support Vector Machines (SVM), Random Forest, Logistic Regression, Multi-layer perceptron and k-nearest neighbors using uni-grams, bi-grams features. With the goal of extracting users{\textquoteright} sentiment from written text. Experimental results showed that n-gram features could substantially improve performance; and showed that the Multinomial Na{\"\i}ve Bayes approach is the most accurate in predicting topic polarity. Best results were achieved using count vectors trained by combination of word-based uni-gramsand bi-grams with an overall accuracy of 85.57\% over two classes and 65.64\% over three classes.

}, doi = {https://doi.org/10.6025/jdim/2019/17/5/289-295}, url = {http://dline.info/fpaper/jdim/v17i5/jdimv17i5_3.pdf}, author = {Sadik Bessou and Rania Aberkane} } @article {721, title = {A Survey on Vehicular Ad-Hoc Networks Routing Protocols: Classification and Challenges}, journal = {Journal of Digital Information Management }, volume = {17}, year = {2019}, month = {08/2019}, pages = {227-244}, chapter = {227}, doi = {https://doi.org/10.6025/jdim/2019/17/4/227-244}, author = {TASSOULT Nadia and MAD Mourad and MOUMEN Hamouma and KALLA Hamoudi} } @article {799, title = {A Survey on Vehicular Ad-Hoc Networks Routing Protocols: Classification and Challenges-}, journal = {Journal of Digital Information Management}, volume = {17}, year = {2019}, month = {08/2019}, pages = {227-244}, type = {Research}, chapter = {227}, abstract = {

The Vehicle ad hoc Networks (VANET) are attracting more and more manufacturers and researchers{\textquoteright} attention. Many challenges must be addressed before VANETs can be successfully deployed. The most challenging issue in VANETs is designing of routing mechanisms and efficient medium access control protocols so that safety related and other application messages can be timely and reliably disseminated through VANETs. The aim of VANET routing protocols is establishing of an efficient route between network nodes that should adapt to the rapid changes in the network topology. However, routing protocols in VANET is a challenging issue, mainly due to the rapidly changing topology of vehicles and frequent fragmentation in the network. In this work, we review the most frequent routing protocols for VANETs and then we provide a taxonomy of these protocols based on the used relay selection technique. We compare and discuss these routing protocols according to different criteria. Moreover, we discuss several issues and prerequisite that should be considered when designing VANETs routing. Finally, we highlight the most important aspects and future directions that could be explored in the design of a new Geocast routing solution for vehicular routing algorithms as a contribution for further work.

}, doi = {https://doi.org/10.6025/jdim/2019/17/4/227-244}, url = {http://dline.info/fpaper/jdim/v17i4/jdimv17i4_4.pdf}, author = {TASSOULT Nadia and AMAD Mourad and MOUMEN Hamouma and KALLA Hamoudi} } @article {664, title = {SA-min: An Efficient Algorithm for Minimizing the Spread of Influence in a Social Network}, journal = {Journal of Information Technology Review}, volume = {9}, year = {2018}, month = {06/2018}, pages = {48-59}, type = {Research}, author = {Yong Liu and Shengnan Xie and Wei Zhang and QianqianRen} } @article {621, title = {Satellite Image Compression Technique Using Noise Bit Removal and Discrete Wavelet Transform}, journal = {Journal of Multimedia Processing and Technologies}, volume = {9}, year = {2018}, pages = {1-7}, author = {Khaled Sahnoun} } @article {690, title = {Secured Multimodal Biometric System}, journal = {Journal of Multimedia Processing and Technologies}, volume = {9}, year = {2018}, month = {09/2018}, pages = {77-87}, type = {Research}, author = {Bedad Fatima and Adjoudj R{\'e}da} } @article {815, title = {Sentiment Analysis of Arabic Tweets: Opinion Target Extraction-}, journal = {Journal of Digital Information Management}, volume = {16}, year = {2018}, month = {12/2018}, pages = {324-331}, type = {Research}, chapter = {324}, abstract = {

\ Due to the increased volume of Arabic opinionated posts on different social media, Arabic sentiment analysis is viewed as an important research field. Identifying the target or the topic on which opinion has been expressed is the aim of this work. Opinion target identification is a problem that was generally very little treated in Arabic text. In this paper, an opinion target extraction method from Arabic tweets is proposed. First, as a preprocessing phase, several feature forms from tweets are extracted to be examined. The aim of these forms is to evaluate their impacts on accuracy. Then, two classifiers, SVM and Na{\"\i}ve Bayes are trained. The experiment results show that, with 500 tweets collected and manually tagged, SVM gives the highest precision and recall (86\%).

}, doi = {https://doi.org/10.6025/jdim/2018/6/324-331}, url = {http://dline.info/fpaper/jdim/v16i6/jdimv16i6_4.pdf}, author = {Salima BEHDENNA and Fatiha Barigou and Ghalem Belalem} } @article {704, title = {Sentiment Analysis of Arabic Tweets: Opinion Target Extraction}, journal = {Journal of Digital Information Management}, volume = {16}, year = {2018}, month = {12/2018}, pages = {324-331}, type = {Research}, chapter = {324}, doi = {https://doi.org/10.6025/jdim/2018/6/324-331}, url = {http://dline.info/fpaper/jdim/v16i6/jdimv16i6_4.pdf}, author = {Salima BEHDENNA and Fatiha Barigou and Ghalem Belalem} } @article {634, title = {Solution to Harmonics Interference on Track Circuit Based on ZFFT Algorithm with Multiple Modulation}, journal = {Journal of Electronic Systems}, volume = {8}, year = {2018}, month = {03/2018}, pages = {12-26}, type = {Research}, author = {Xiaochun Wu and Guanggang Ji} } @article {619, title = {Stock Price Prediction Using Multilayer Perceptron Neural Network by Monitoring Frog Leaping Algorithm}, journal = {Journal of Intelligent Computing}, volume = {9}, year = {2018}, month = {3/2018}, pages = {15-23}, url = {http://www.dline.info/jic/fulltext/v9n1/jicv9n1_2.pdf}, author = {Ahdieh Rahimi Garakani} } @article {618, title = {Study on the Task Scheduling Problem of Complicated Products{\textquoteright} Design}, journal = {Journal of Intelligent Computing}, volume = {9}, year = {2018}, month = {3/2018}, chapter = {1-14}, url = {http://www.dline.info/jic/fulltext/v9n1/jicv9n1_1.pdf}, author = {Xiao Bo Cao and Cheng Dong Xu and Guo Chao Fan} } @article {669, title = {A Survey and Analysis of Techniques and Tools for Web Performance Optimization}, journal = {Journal of Information Organization}, volume = {8}, year = {2018}, month = {06/2018}, pages = {31-57}, type = {Research}, author = {Shailesh Shivakumar and P. V Suresh} } @article {475, title = {Study on digital image inpainting method based on multispectral image texture synthesis}, journal = {Journal of Digital Information Management}, volume = {15}, year = {2017}, note = {Export Date: 22 February 2018}, month = {2017}, pages = {251 - 258}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85036655486\&partnerID=40\&md5=87cd3fb02681716474621172e64e05b9}, author = {Zhaoyang, J. and Guangxue, C.} } @article {508, title = {Selection problem of Cloud solution for big data accessing: Fuzzy AHP-PROMETHEE as a proposed methodology}, journal = {Journal of Digital Information Management}, volume = {14}, year = {2016}, note = {Export Date: 22 February 2018}, month = {2016}, pages = {368 - 382}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85010966355\&partnerID=40\&md5=4f3167a86b6e54545dc4826982f49ca6}, author = {Boutkhoum, O. and Hanine, M. and Agouti, T. and Tikniouine, A.} } @article {544, title = {Sentence-level opinion analysis for Chinese news documents based on sentiment information of social tags}, journal = {Journal of Digital Information Management}, volume = {14}, year = {2016}, note = {Export Date: 22 February 2018}, month = {2016}, pages = {52 - 62}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84969813520\&partnerID=40\&md5=48d1a14dad93d4235d4983212eabb14c}, author = {Yeh, J.-Y. and Chen, S.-Y.} } @article {532, title = {Study on the classification of negative sentiment Weibo messages in the post-disaster situation}, journal = {Journal of Digital Information Management}, volume = {14}, year = {2016}, note = {Cited By :1Export Date: 22 February 2018}, month = {2016}, pages = {136 - 142}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84974844215\&partnerID=40\&md5=6406c8db9847b799a50f4615768557f6}, author = {Bai, H. and Yu, G. and Tian, X.Y.} } @article {526, title = {Study on the training system of legal on proceeding business based the prototyping method and object-oriented systematic analysis method}, journal = {Journal of Digital Information Management}, volume = {14}, year = {2016}, note = {Export Date: 22 February 2018}, month = {2016}, pages = {204 - 209}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84982791250\&partnerID=40\&md5=ec943f5ffc22d260f5d11a043a258106}, author = {Fan, G. and Liu, Y.} } @article {545, title = {A systematic approach for changing XML namespaces in XML schemas and managing their effects on associated XML documents under schema versioning}, journal = {Journal of Digital Information Management}, volume = {14}, year = {2016}, note = {Export Date: 22 February 2018}, month = {2016}, pages = {275 - 289}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-85006957183\&partnerID=40\&md5=86f720e96986f3731d3e5138d1ad8ff9}, author = {Brahmia, Z. and Grandi, F. and Bouaziz, R.} } @article {575, title = {A semantic approach to enhance HITS algorithm for extracting associated concepts using ConceptNet}, journal = {Journal of Digital Information Management}, volume = {13}, year = {2015}, note = {Cited By :1Export Date: 22 February 2018}, month = {2015}, pages = {55 - 62}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930359429\&partnerID=40\&md5=627ea17640f272c8144f60205cfa14e4}, author = {Alsoos, M. and Kheirbek, A.} } @article {552, title = {Simulation study on the effect of employee mobility on the spreading of tacit knowledge among industrial enterprises based on the knowledge spreading model}, journal = {Journal of Digital Information Management}, volume = {13}, year = {2015}, note = {Cited By :2Export Date: 22 February 2018}, month = {2015}, pages = {445 - 450}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84959184125\&partnerID=40\&md5=8d279888fcea216ca2346d99c18ce71a}, author = {Zhu, H.M. and Zhang, S.T. and Lang, Y.J.} } @article {611, title = {Sina weibo incident monitor and Chinese disaster microblogging classification}, journal = {Journal of Digital Information Management}, volume = {13}, year = {2015}, note = {Cited By :3Export Date: 22 February 2018}, month = {2015}, pages = {156 - 161}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84938605096\&partnerID=40\&md5=0295a6e5d147150bd11644b6a64fd134}, author = {Bai, H. and Lin, X. and Robinsion, B. and Power, R.} } @article {595, title = {An SMS - Based one - Time - Password scheme with client - Side validation}, journal = {Journal of Digital Information Management}, volume = {13}, year = {2015}, note = {Export Date: 22 February 2018}, month = {2015}, pages = {69 - 75}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930396014\&partnerID=40\&md5=25262d5aa35b7270c00ed1be30ba1565}, author = {Hwang, J.-J. and Hsu, Y.-C. and Liao, G.-Y.} } @article {583, title = {Study on the 3D information reconstruction and management of cultural relics based on the articulated arm scanner}, journal = {Journal of Digital Information Management}, volume = {13}, year = {2015}, note = {Cited By :1Export Date: 22 February 2018}, month = {2015}, pages = {31 - 38}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84930349218\&partnerID=40\&md5=53aa49c6b138faae7f80780d39bb0fde}, author = {Zhang, X.-D. and Hou, M.-L. and Hu, Y.-Y. and Zhang, X.-Q. and Wu, Y.-H.} } @article {446, title = {A SEIR model epidemic of virus on the online social network}, journal = {Journal of Digital Information Management}, volume = {12}, year = {2014}, note = {Export Date: 10 July 2014}, month = {2014}, pages = {102 - 107}, abstract = {Vigorous development of computer technology has made computers play an integral role in people{\textquoteright}s lives, but at the same time propagation of the virus on a computer network also cost a great loss to the people. So the research on the mechanism of computer virus propagation and pointing out the key factors in the propagation of the virus has a significant influence on the prevention of computer virus and can also promote the development of relevant policies. The paper researched the influence of the user re-login frequency, the average number of friends on the user{\textquoteright}s friend list and the initial spread rate of the virus on the social networks during the epidemic of the propagation of the computer virus. By the means of mathematical analysis, an SEIR model to describe the epidemic of the virus on the online social network is established in this paper. The research shows that the re-login frequency of the user and the average friend number of the user would make a significant influence on the virus propagation. The two factors enhance the risk of a virus outbreak in the social network, at the same time.}, keywords = {Complex network, Computer virus, Epidemic spreading, Social Network, Social networks, Transmission factor, Virus propagation}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84903186303\&partnerID=40\&md5=6a9d4aa50e806dcc14698506b1e5b115}, author = {Min, Y. and Qianmu, L. and Yaoliang, S.} } @article {440, title = {Soft-404 pages, a crawling problem}, journal = {Journal of Digital Information Management}, volume = {12}, year = {2014}, note = {Export Date: 10 July 2014}, month = {2014}, pages = {73 - 92}, abstract = {During its traversal of the Web, crawler systems have to deal with multiple challenges. Some of them are related with detecting garbage content to avoid wasting resources processing it. Soft-404 pages are a type of garbage content generated when some web servers do not use the appropriate HTTP response code for death links making them to be incorrectly identified. Our analysis of the Web has revealed that 7.35\% of web servers send a 200 HTTP code when a request for an unknown document is received, instead of a 404 code, which indicates that the document is not found. This paper presents a system called Soft404Detector, based on web content analysis to identify web pages that are Soft-404 pages. Our system uses a set of content-based heuristics and combines them with a C4.5 classifier. For testing purposes, we built a Soft-404 pages dataset. Our experiments indicate that our system is very effective, achieving a precision of 0.992 and a recall of 0.980 at Soft-404 pages.}, keywords = {Algorithms, Data mining, Design, Link analysis, Performance, Soft-404 error, Statistical properties of the web, Web decay, Web spam}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84903202899\&partnerID=40\&md5=fa1bd1e59e4da6c413c6527da17e6e6b}, author = {Prieto, V.M. and {\'A}lvarez, M. and Cacheda, F.} } @article {450, title = {Study on college student credit evaluation and prediction based on RF algorithm}, journal = {Journal of Digital Information Management}, volume = {12}, year = {2014}, note = {Export Date: 10 July 2014}, month = {2014}, pages = {26 - 30}, abstract = {In the increasingly serious environment of employment of college students, the college student credit evaluation model taking into account of the "basic personal situation", "on-campus situation" and "economic situation" is employed in this paper for the purpose of improving the quality of college student credit education more efficiently, and in addition, a college student credit prediction mechanism based on the improved RF algorithm is put forward, seen from the test result, the accuracy of college student credit prediction of the algorithm is relatively high, and capable to make student credit education more targeted.}, keywords = {Credit evaluation, Prediction mode, Random forest algorithm}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84900433117\&partnerID=40\&md5=50b322efa1e0fc719d4244f770e8918a}, author = {Mu, J. and Xu, L. and Pu, H.} } @article {434, title = {Secure digital certificate design based on the RSA algorithm}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {423 - 429}, abstract = {With the popularity of the Internet, people can purchase and sell goods and services online just staying at home, and this trend is becoming increasingly apparent. The Internet, as a global computer network, has to provide the following five services: security, data integrity, authentication, usability, and reliable information. In case of lack of safety measures, Internet trading risk is very high. Digital certificates can provide proof of identity in Internet transactions, so that we can greatly reduce transaction risk. This paper describes an approach based on the X.509 standard for digital certificates, using the C language generate public key algorithm RSA, enabling digital certificate generation and signature verification process, the identity of certification users can be verified.}, keywords = {Authentication, Digital Certificates, Internet, RSA}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84892153961\&partnerID=40\&md5=9398ee5232d46b8d829b73ca5dbee714}, author = {Zhong, Y.} } @article {433, title = {Security analysis and evaluation of random linear network coding under wiretapping attack}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {446 - 452}, abstract = {This paper discussed the weak security of random linear network coding in wireless network in view of network coding weak security theory where the wiretapper can successfully obtain initial data and conditions threatening transmission security by decoding. The experiment results displayed, in wireless network, the relationship between decodes success probability of multi-node co-wiretapping, the decodes time of destination node and the node number in round and network, the number of data packet which source node sends every time, Galois field size and transmission radius of each node.}, keywords = {Multinode Co-wiretapping, Random Linear Network Coding, Security}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84892157046\&partnerID=40\&md5=987b97220d343f2739f129f050e6b5ef}, author = {Xiaoxing, L.V. and Baihai, Z.} } @article {427, title = {Segmentation strategies for passage retrieval from internet video using speech transcripts}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {400 - 408}, abstract = {We compare the effect of different segmentation strategies for passage retrieval of user generated internet video. We consider retrieval of passages for rather abstract and complex queries that go beyond finding a certain object or constellation of objects in the visual channel. Hence the retrieval methods have to rely heavily on the recognized speech. Passage retrieval has mainly been studied to improve document retrieval and to enable question answering. In these domains best results were obtained using passages defined by the paragraph structure of the source documents or by using arbitrary overlapping passages. For the retrieval of relevant passages in a video no author defined paragraph structure is available. We compare retrieval results from 5 different types of segments: segments defined by shot boundaries, prosodic segments, fixed length segments, a sliding window and semantically coherent segments based on speech transcripts. We evaluated the methods on the corpus of the MediaEval 2011 Rich Speech Retrieval task. Our main conclusions are (1) that fixed length and coherent segments are clearly superior to segments based on speaker turns or shot boundaries; (2) that the retrieval results highly depend on the right choice for the segment length; and (3) that results using the segmentation into semantically coherent parts depend much less on the segment length. Especially, the quality of fixed length and sliding window segmentation drops fast when the segment length increases, while quality of the semantically coherent segments is much more stable. Thus, if coherent segments are defined, longer segments can be used and consequently fewer segments have to be considered at retrieval time.}, keywords = {Multimedia Retrieval, Text Segmentation, User Generated Content, Video Segmentation}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84892167136\&partnerID=40\&md5=41e146d1a72335b63599072284ec5b9e}, author = {Wartena, C.} } @article {373, title = {The short-term wind power forecast based on phase-space reconstruction and neural networks}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2013}, pages = {40 - 45}, abstract = {The short-term forecast of the wind power of a wind farm is of great significance for the security and stability of a grid-connected generation system. An accurate forecast may reduce the spinning reserve of a grid while providing reliable references for operation dispatch of a wind farm. In order to improve the accuracy of short-term forecasts, introducing the phase-space reconstruction technique of the chaos theory, this paper was established forecasting models by reconstructing the historical time-series data of the wind power of a single unit based on the dynamical properties of chaos sequences, choosing the best delay time with the mutual information method, determining the best combination of embedding dimensions with the Cao algorithm, as well as utilizing the Elman recurrent neural network and others like the BP. As comparative case analysis shows, the forecasts of Elman model are more accurate than that of the others, exhibiting a positive prospect of utilizing this combined model of phase-space reconstruction and neural network in wind power forecasting of a single unit.}, keywords = {BP Neural Network, Delay time, Elman neural network, Embedding dimensions, Phase-space reconstruction, The short-term wind power forecasts}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879073309\&partnerID=40\&md5=fdd64e3c0ae9db677a30cd0fc318f9ba}, author = {Zhang, J.-H. and Liu, Y.-Q. and Tian, D.} } @article {402, title = {Spanning tree method for minimum communication costs in grouped virtual mapreduce cluster}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {213 - 219}, abstract = {Today, MapReduce and virtual cluster are sharp swords for this big data and cloud computing era. To combine these two emerging technologies, it brings feasible-scalability, easy-management, fast-deployment and high-efficiency with the system. As every sword has two sides, the I/O bottleneck of virtualization technologies may seriously impacts on the performance of MapReduce cluster which deals with I/O-intensive applications. In this paper, we analyze the combination advantages and disadvantages of virtualization technology of MapReduce cluster. We also analyze the communication model for both of them and build a communication costs model. Then, we propose a novel algorithm of minimum-weight spanning tree to construct a lower communication costs virtual MapReduce cluster. With the help of constructing minimum-weight spanning tree, we find out a method to select local-master and group the cluster. Theoretical simulation and experiment results demonstrate that our method can greatly reduce communication costs. The performance improvement is up to ~40.4\% respectively.}, keywords = {Cloud computing, Mapreduce, Spanning tree, Virtual machine}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84880774380\&partnerID=40\&md5=a8db5f920e0bbee748a4977aecbefdf2}, author = {Yang, Y. and Long, X. and Shi, B.} } @article {392, title = {The statistical analysis of family names of donators for wenchuan}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {235 - 239}, abstract = {It is analyzed that the family names of personal donators who donated through China Construction Bank Corporation to Chinese Red Cross Foundation for the WenChuan earthquake. The distribution of family names, the first 100 family names and their shares, the probability of the same family names as well as the Gini coefficient are all given in this paper. A heavy disproportion is showed in the distribution, that is to say a small part of family names occupy the absolutely large proportion while most of them are rare. This character is similar to power-law that has been observed in many demonstrations about family names. However, the Kolmogorov-Smirnov test fails to support the hypothesis. Instead, part of the data shows an exponential characteristic. As an innovative sampling method, the discussion may help to know the family name{\textquoteright}s distribution of China.}, keywords = {Distribution, Exponential, Powerlaw, The family name}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84880773341\&partnerID=40\&md5=5ab1d739ad89b517599a75710dec963b}, author = {Yufan, L. and Qinghua, C.} } @article {385, title = {Structure optimization of ladle bottom based on finite element method}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {120 - 124}, abstract = {Ladle is an important container in metallurgy industry, and its lifetime is very important for the natural production of enterprise. The stand or fall of refractory lining of ladle decides its lifetime, yet thermal stress is the direct reason of causing refractory lining breakage. In this paper the structure of ladle mainly by changing the structure of bottom with finite element method is designed, and three scheme models are put forward. By analyzing and comparing stress field of the three ladle models, finally an optimization scheme is put forward. The experiment results indicate that the lifetime of ladle gains obvious increasement, and the rationality and practicability of the scheme have been proved. The method is feasible to improve ladle{\textquoteright}s lifetime.}, keywords = {Equivalent stress, Finite element method, Ladle bottom, Stress field, Structure optimization}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879119261\&partnerID=40\&md5=b9bc4b165b18d48acae83fe0d659cc3e}, author = {Li, G. and Li, Z. and Kong, J. and Jiang, G. and Xie, L.} } @article {393, title = {Study of methods for constructing families of odd-periodic perfect complementary sequence pairs}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {194 - 196}, abstract = {Some characteristics of the families of oddperiodic perfect complementary sequence pairs (OPCSPF) are discussed. The methods for constructing an OPCSPF are given and proved. The families of periodic perfect complementary sequence pairs can be constructed correspondingly by using the equivalent relationships, which further expanded the existence space of the complementary sequence.}, keywords = {Odd-periodic complementary sequence, Perfect signal theory, Sequence pairs}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84880828927\&partnerID=40\&md5=e9791258f96791c503bea170292e04cb}, author = {Jin, H.-L. and Chen, J.-X.} } @article {368, title = {Study on a robot 3D laser radar information collection system}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {69 - 75}, abstract = {This paper studies a low-cost computerbased 3D laser radar collection system. First, the control of actuator is realized by serial communication and the 2D image is captured from lines to surface, then denoise processing calibration is carried out by using Open CV. By using Irrlicht3D engine, the point cloud data is to be rendered to convert the 2D images to the 3D effect. Robot{\textquoteright}s collection on external image is achieved through the study of Open CV learning that combined with VC2008.}, keywords = {3D laser radar, Information collection, Low-cost}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879113061\&partnerID=40\&md5=7941cc253a0c68dabc5b5f89de60ee27}, author = {Chen, W. and Shen, J. and Xue, J.} } @article {436, title = {Study on computer audit based on OLAP technology}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {409 - 417}, abstract = {It has become increasingly difficult for the traditional audit information system to find out the necessary audit information from the mass data generated in the large scale application of accounting computerization and ERP software, etc. For the current massive financial and operation information data of enterprises, a new audit model is necessarily explored to satisfy the requirements on massive information audit. Dynamic on-line analysis and audit information system can provide a brand new train of thought to conduct rapid and efficient audit in mass data. Under such a backdrop, selective introduction of the computer audit mode based on OLAP from Western Countries has become the necessity for the current audit development of our country. The computer audit based on OLAP technology mainly conducts multi-angle data observation, finding suspicious audit data, and create an audit data model in advance; it mainly includes five parts, i.e. data model subsystem, audit online analysis processing subsystem, auditing business management subsystem, expertise experience library subsystem and audit alarm subsystem.}, keywords = {Computer Audit, Data model, OLAP, Subsystem CLC Number, TP311.13 F239}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84892159745\&partnerID=40\&md5=73e06eabfb56e4cc5549342fff805b9c}, author = {Yanjun, T.} } @article {371, title = {Study on current protection in distribution network with distributed generation}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {46 - 53}, abstract = {Running with distributed generation, configuration of distribution network will be changed, that influences strength, flowing direction and duration of fault current. It analysed influence on current protection in main feeder, recloser and conventional branch line protection through the calculation formula of fault current before and after distributed generation synchronization development. In Matlab/Simulink, it constructed distribution network model with distributed generation, used simulation examples to prove influence on current protection and put forward improvement measures which can meet requirements of relay protection in distribution network.}, keywords = {Current protection, Distributed generation, Distribution network, Fault current}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879100407\&partnerID=40\&md5=c313cd9e2a75b7b6bd904c992a809445}, author = {Zhu, X.-L. and Liu, J. and Han, F.} } @article {386, title = {Study on fuzzy evaluation of credit risk of corporate bond}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {102 - 107}, abstract = {The credit risk evaluation of corporate bond is one of the difficult and hot research fields in the related research and plays a key role for corporate financing. Based on the fuzzy theory and analytic hierarchy process, a new credit risk evaluation model of corporate bond is presented. First an evaluation indicator system of credit risk of corporate bond is designed through analyzing the characteristics of the evaluation indicator with more details; Second, analytic hierarchy process is used to determine the level of different indicators and multistage comprehensive fuzzy evaluation is used to evaluate the credit risk of corporate bond. Finally, corporate bond of 10 enterprises are taken for examples to evaluate the credit risk and verify the validity and feasibility of the model and the experimental results show that the model can evaluate the credit risk of different corporate bond of different enterprises practically.}, keywords = {Analytic hierarchy process, Credit risk evaluation, Evaluation indicator system, Multistage comprehensive fuzzy evaluation}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879107489\&partnerID=40\&md5=5ed9e7ced58f7b1babf82aed43c4db90}, author = {Jiazhong, O. and Min, L.} } @article {407, title = {The study on information characteristics analysis using information diffusion method}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {290 - 297}, abstract = {A new kind of comprehensive evaluation method is proposed through analyzing the characteristics of the source of information. We use of three kinds of information transmission network performance report of the son from a source for information. Exploring the effective information diffusion characteristics, we analyzed the characteristics. The results in these characteristics have different characteristics, often preferred different types of information sources, such as a news conference or columns.}, keywords = {Blog, Information diffusion, Network analysis, Ranking}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84888365071\&partnerID=40\&md5=fac2b10e3f70e9d408611eb7bb0b9451}, author = {Huang, L.-D. and Shen, X.-C.} } @article {375, title = {The study on pendubot control linear quadratic regulator and particle swarm optimization}, journal = {Journal of Digital Information Management}, volume = {11}, year = {2013}, note = {Export Date: 10 July 2014}, month = {2013}, pages = {16 - 24}, abstract = {In this paper, a new algorithm to optimize the state feedback linearization matrix of two-link PenduBot control system. Mature method of comparison, the best of the simulation results of the particle swarm optimization algorithm can make the object more stable. Obviously, the particle swarm algorithm is introduced to the angular displacement and speed of smaller each link, less overshoot and a relatively short period of time to adjust. The algorithm through the control control ability proves two-link PenduBot. However, it needs modification parameter and run the program several times, so the need of further research for further improvement.}, keywords = {LQR, Pendubot, PSO, State-feedback}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84879114013\&partnerID=40\&md5=b4f25efc7f371dde9d9d28828f6856e7}, author = {Jianfeng, X. and Huzhen, S.} } @article {322, title = {Semantic-oriented integration and simulation-based analysis approach for healthcare information systems (HIS)}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = {131 - 135}, abstract = {According to the unsystematic state of current health information systems integration and aiming to improve semantic interoperability, the approach for health information systems under SOA is studied in detailed. As for the system engineering, the concept of HIS integration is discussed. After that, a SOA-based health information system architecture and MDA-based modeling and simulation analysis approach are explored. Finally, a service-oriented integrated environment is designed.}, keywords = {Healthcare information system, MDA, Simulation analysis, SOA}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84866469913\&partnerID=40\&md5=59195f9ddbbe9698b622a0623d81497d}, author = {Song, L.-L. and Xie, J. and Huang, Z.-D.} } @article {325, title = {SERCID: A secure mechanism for data collection in wireless sensor networks}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = {79 - 85}, abstract = {The unattended nature of wireless sensor networks makes them very vulnerable to malicious attacks. An adversary can physically compromise a subset of sensor nodes in a wireless sensor network to eavesdrop information. Due to some intrinsic features of wireless sensor network, it is difficult to perform efficient intrusion detection against malicious nodes in such a resource-restricted environment. In this paper, we propose a novel secure mechanism, SERCID for wireless sensor networks. The mechanism consists of a key-based secure routing algorithm and a counter-based intrusion detection algorithm. The approach is able to protect the data collection in a wireless sensor network even if there are malicious nodes in the network. The major contribution of our work is that we present an original approach to defend wireless sensor networks against both tampering and packet-dropping attacks, for the first time. We provide a relatively simple but reliable approach to support secure data collection in wireless sensor networks. Compared with existing research efforts, the proposed approach is easy to be implemented and performed in resourceconstrained wireless sensor networks.}, keywords = {Attack, Data collection, Encryption, Intrusion detection, Security, Wireless sensor network}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84866465185\&partnerID=40\&md5=ba314ed11d14004232b2fddcd4fa4ee8}, author = {Mao, Y.} } @article {357, title = {Snippets and component-based authoring tools for reusing and connecting documents}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = {399 - 409}, abstract = {This paper presents the Snippet System, a new operating system environment that aims at providing enhanced document management facilities. For this, the proposed system utilizes a novel document model based on finer-grained entities, so-called Snippets. These support Relations, which capture the context of individual document excerpts. Snippets furthermore enable a flexible reuse of documents, i.e., user-defined excerpts can be included in several other documents with only selected properties remaining synchronized between different instances. Moreover, dedicated mechanisms allow for the efficient retrieval of these instances and thus support the user in keeping track of reused excerpts and synced properties. The Snippet System relies on a component-based authoring tool architecture that enables different authoring tools to collaborate for handling documents. This allows for combining the contents created by various tools in a single document, independently of the type of content and tools involved, thus making possible the reuse of documents and the definition of Relations across tool boundaries.}, keywords = {Applied computing, Authoring tools, Document management, Document management and text processing, Human-centered computing}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84874892012\&partnerID=40\&md5=559724084cafa42bb9580bae7e030bbe}, author = {Kirsch, L. and Botev, J. and Rothkugel, S.} } @article {317, title = {Special issue editorial}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = { - }, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84866449547\&partnerID=40\&md5=28d7bd0880f0712f199dfb5a32a06088}, author = {Tian, W. and Xie, M.} } @article {327, title = {Story segmentation of xinwenlianbo based on three-level criterion of content analysis}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = {104 - 108}, abstract = {To detect the story boundary (SB) of Xinwenlianbo precisely, this paper proposes a method of three-level criterion story segmentation (SS) based on content analysis. For the story with anchorperson, this paper uses penny distance to judge whether the anchorperson gotten by video feature is true or not to look for SB; for the story without anchorperson, this paper looks for the SB by judging the shot change point occurs in the silence region. The experiment results show that the method can improve 6.98\% precision comparing with only using video feature in anchor detection and the error range can be decreased from 1.5 ~2.5 seconds to 0 ~0.5 second in SB without anchor by silence detection, which settles the problem of no precision boundary and video frame lost corresponding to silence for only using silence .The final precision of SS reaches 93.12\%.}, keywords = {Content analysis, Penalty distance, Story segmentation, Three-level criterion, Xinwenlianbo}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84866436585\&partnerID=40\&md5=4769d7d15e1441698955b8a3e0da0541}, author = {Yang, J.-C.} } @article {331, title = {A strategic search method for requirement-aware functional-block selection and composition in a flexible network}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = {194 - 201}, abstract = {Internet applications have reached such a high complexity that the network stack concept introduced decades ago is not suitable anymore. Future Internet research activities try to increase the flexibility of the Internet in order to allow the network to adapt to present and future requirements and applications. A well known approach is to build protocol graphs, which will be used instead of inflexible network stacks, by connecting functional blocks together. A functional block encapsulates a particular network function. The protocol graph that should be used is the one most suitable to the application{\textquoteright}s requirements. To find the most suitable graph, all possible protocol graphs must be evaluated. However, the number of possible protocol graphs increases exponentially as the number of functional blocks increases. This article presents a method of modeling the protocol graph search space as a set of search trees and then using search strategies to manage the inherent complexity of the search process. We evaluate our proposed method by simulation.}, keywords = {Complexity, Composition, Flexible networks, Future internet, Protocol graph, Selection}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84866463034\&partnerID=40\&md5=b30673b530b454aa1a7fead4a7f771ad}, author = {G{\"u}nther, D. and Kerr, N. and M{\"u}ller, P.} } @article {350, title = {A survey on data migration management in cloud environment}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Export Date: 10 July 2014}, month = {2012}, pages = {324 - 331}, abstract = {Cloud computing has become a hot technology. The virtualization technology, one of its core support technologies, is also developing quickly. In recent years, a lot of research and practice have been done in the virtualization field. Live virtual machine migration has drawn much attention as a representative technology of the virtualization field. This paper summarizes the research progress of live virtual machine migration technology including pre-copy, post-copy and CR/TR-Motion analyzes the future research trend.}, keywords = {Cloud computing, Live migration, Virtual machine, Virtualization}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84870801122\&partnerID=40\&md5=b4c2238489deb4c292137fd14e4a2091}, author = {Hu, L. and Zhao, J. and Xu, G. and Ding, Y. and Chu, J.} } @article {352, title = {Swarm-robot system based on wireless sensor network}, journal = {Journal of Digital Information Management}, volume = {10}, year = {2012}, note = {Cited By (since 1996):4Export Date: 10 July 2014}, month = {2012}, pages = {277 - 283}, abstract = {The study about the swarm-robot system is one of the most important directions of multitudinous robots system. It is an extraordinary challenged issue which how to communicate with each swarm-robot to cooperate together to accomplish a mission in numerous units. The swarm-robot system, which is based on CC2510 wireless sensor network, with the Radio Frequency of FHSS as the communication mode, has realized the swarm-robot unit sensor organ information coordination alternately fleet that improving the stability, interference immunity and transferability. The coordinating scheme possesses availability and practicability has been proved.}, keywords = {CC2510, Coordination, FHSS, Swarm-robot}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-84870787456\&partnerID=40\&md5=1543551d520c6b04bd2a82a95ffe8283}, author = {Peng, J.-S. and Li, X. and Qin, Z.-Q. and Li, W.} } @article {273, title = {Scanning-beam antenna on metamaterials coplanar structure for wireless applications}, journal = {Journal of Digital Information Management}, volume = {9}, year = {2011}, note = {Export Date: 10 July 2014}, month = {2011}, pages = {111 - 116}, abstract = {A scanning-beam antenna on metamaterial coplanar structures is presented. The proposed antenna is, in essence, a composite of Right/Left-Handed (CRLH) coplanar waveguide (CPW) structure incorporating distributed periodic structures with L-C high-pass filter topology which support left-handed (LH) waves. The negative refractive index (NRI) properties of these structures are shown theoretically, numerically and validated by full-wave simulations. The supported LH wave is fully characterized and based on the composite right/left-handed transmission-line (CRLH-TL) theory; and the dispersion characteristics, refractive indexes and Bloch impedance are derived theoretically. In addition, formulas to extract equivalent-circuit parameters from full-wave simulation are given. Since the distance d between adjacent cells of the array is small, d \< \< λo and the array becomes a uniform leaky-wave antenna (LWA) for a 10-cell operating near 10 GHz. Simulated radiation pattern, gain, and associated loss budget are presented. The results of LWA exhibit scanning-beam capability from backfire-to-endfire direction and accord well with the theoretical analysis. The antenna is printed on thin and flexible substrate (h = 25 μm). Furthermore, since the antenna is implemented with low-cost and CPW technology, it is a good candidate for integrated RF/microwave systems that can be used in digital wireless communications and radars.}, keywords = {Coplanar Structure, Microwave systems, Scanning-Beam Antenna}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80053027377\&partnerID=40\&md5=64150e3e06edecef1c364f45804780d2}, author = {Hamdi, A.} } @article {276, title = {A secure and efficient authentication protocol for mobile RFID systems}, journal = {Journal of Digital Information Management}, volume = {9}, year = {2011}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2011}, pages = {99 - 105}, abstract = {The design of a secure communication scheme for Radio Frequency Identification (RFID) systems has been extensively studied in recent years in view of the awareness of individual privacy and the requirement of robust system security. Most of previous works assume the communication channel between an RFID reader and its backend server is secure and concentrate on the security enhancement between an RFID tag and an RFID reader. However, once RFID reader modules are extensively deployed in consumer{\textquoteright}s handheld devices, the security violation problems at reader side will be deeply concerned by individuals and organizations. In this paper, it is assumed that the future communication environment for RFID systems will be all wireless and insecure. Under such infrastructure, handheld device suchas mobile phone, embedded with RFID reader modules will be situated everywhere and operated with many RFID tags in various RFID application systems. Hence in this paper, an authentication protocol in mobile RFID environment is proposed which effectively achieves forward security with preventing replay, eavesdropping, and counterfeit tag attacks. Based on the security analyses, it has been shown that the scheme can enhance data security and provide privacy protection at reader side even in the presence of an active adversary under insecure mobile RFID environment.}, keywords = {Eavesdropping, Forward security, Mobile RFID, RFID}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80053013286\&partnerID=40\&md5=1de54a3906933fffce15a15339f4b55c}, author = {Sandhya, M. and Rangaswamy, T.R.} } @article {278, title = {A semantic annotation model for indexing and retrieving learning objects}, journal = {Journal of Digital Information Management}, volume = {9}, year = {2011}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2011}, pages = {159 - 166}, abstract = {The internet is an important part of our world. Offering a large and increasing amount of information, people can use it for learning, teaching, etc. Automatic tools for learning information retrieval based on semantic tags have not been effective yet. We propose here a model which aims at automatically annotating texts with semantic metadata. These metadata would allow us to index and extract learning objects from texts. This model is composed of two parts. While the first part consists of a semantic annotation of learning objects according to their categories (definition, example, exercise, etc.), the second one uses automatic semantic annotation. Generated by the first part, the latter aims at creating a semantic inverted index able to find relevant learning objects for queries. To sort the results according to their relevance, we apply the Rocchio{\textquoteright}s classification technique to the learning objects. We have implemented a system called SRIDoP, on the basis of the proposed model and we have verified its effectiveness.}, keywords = {Contextual exploration, Learning objects, Rocchio algorithm, Semantic annotation}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80053105137\&partnerID=40\&md5=a9c6f1a4944e56cbefac59e5ce025592}, author = {Smine, B. and Faiz, R. and Descl{\'e}s, J.-P.} } @article {275, title = {Semantic resource discovery in large scale environments}, journal = {Journal of Digital Information Management}, volume = {9}, year = {2011}, note = {Export Date: 10 July 2014}, month = {2011}, pages = {126 - 131}, abstract = {In biosciences, data mining is concerned with processing large amount of data which is characterized by heterogeneity, ever changing and spread in different complex environments. Resource discovery from massive data poses a formidable task for many newer as well as routine applications. The issues addressed in the massive data environments so far are the heterogeneityissues and the semantic focus is less. In the current work, we deal with the resource discovery in large-scale environments (as data grid systems) considering data semantic heterogeneity of biomedical sources. There are many benefits such as-(i) allowing a permanent access, through an addressing system, from any domain ontology DO i to another DO j (inter-domain discovery) despite peers{\textquoteright} dynamicity, (ii) reducing the maintenance cost and (iii) taking into account the semantic heterogeneity.}, keywords = {Biomedical Data Sources, Resource Discovery, Semantic Grid}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-80052989830\&partnerID=40\&md5=60069a9a9d80afc6bcdc3332e86f2c86}, author = {Ketata, I. and Mokadem, R. and Morvan, F.} } @article {223, title = {Spam blog filtering with bipartite graph clustering and mutual detection between spam blogs and words}, journal = {Journal of Digital Information Management}, volume = {8}, year = {2010}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2010}, pages = {108 - 116}, abstract = {This paper proposes a mutual detection mechanism between spam blogs and words with bipartite graph clustering for filtering spam blogs from updated blog data. Spam blogs are problematic in extracting useful marketing information from the blogosphere; they often appear to be rich sources of information based on individual opinion and social reputation. One characteristic of spam blogs is copied-and-pasted articles based on normal blogs and news articles. Another is multiple postings of the same article to increase the chances of exposure and income from advertising. Because of these characteristics, spam blogs share common words, and such blogs and words can form large spam bi-clusters. This paper explains how to detect spam blogs and spam words with mutual filtering based on such clusters. It reports that the maximum precision, or F-measure, of the filtering is 95\%, based on a preliminary experiment with approximately six months{\textquoteright} updated blog data and a more detailed experiment with one day{\textquoteright}s data. An advantage of this method for spam blog filtering, as compared to a machine learning approach, is also supported by experiments with SVM.}, keywords = {Bipartite graph, Clustering, Filtering, Mutual detection, Spam blog, Spam word}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79960276152\&partnerID=40\&md5=575c9621399a49b24a9d7c264810d304}, author = {Ishida, K.} } @article {220, title = {A specification model for temporal and spatial relations of segments in multimedia presentations}, journal = {Journal of Digital Information Management}, volume = {8}, year = {2010}, note = {Cited By (since 1996):2Export Date: 10 July 2014}, month = {2010}, pages = {136 - 146}, abstract = {In this paper, we introduce a conceptual tuplebased model for specification of spatial, temporal and semantic relationships among media segments in a multimedia presentation. A multimedia presentation contains various kinds of multimedia objects such as audio, video, images, text media types and so on. The organization of a presentation is a complex task in that the display order of presentation content (in time and space) must be specified. The critical decisions for presentation construction include content selection, content organization, and content delivery. Once the decision is made on the organization of the content of the presentation, it must be conveyed to the end user in the correct organizational order and in a timely fashion. Assuming that a set of multimedia segments gets organized into a presentation graph, this conceptual model formalizes a complete presentation using event-points for these segments. Three possible end-user environments of multimedia presentation are considered for presentation playout as (i) the one without any constraint, (ii) another one with a single constraint, and (iii) the third one with multiple constraints (one constraint for each type of multimedia segments in the organized presentation). In accordance with these limitations (i.e., without violating any of the end-user specified constraints), we give three methods for constructed presentations to be presented at the presentation terminal.}, keywords = {Bayesian information criterion (BIC), Document clustering, Document retrieval, Dynamic clustering, Performance, Termination criterion}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79960249136\&partnerID=40\&md5=da73c8932dcd46bf41b98910c87b5916}, author = {Hakkoymaz, V.} } @article {213, title = {A survey on delivery context description formats - A comparison and mapping model}, journal = {Journal of Digital Information Management}, volume = {8}, year = {2010}, note = {Cited By (since 1996):2Export Date: 10 July 2014}, month = {2010}, pages = {16 - 27}, abstract = {Nowadays, mobile devices have implemented several transmission technologies which enable access to the Internet and increase the bit rate for data exchange. Despite modern mobile processors and high-resolution displays, mobile devices will never reach the stage of a powerful notebook or desktop system (for example, due to the fact of battery powered CPUs or just concerning the small-sized displays). Due to these limitations, the deliverable content for these devices should be adapted based on their capabilities including a variety of aspects (e.g., from terminal to network characteristics). These capabilities should be described in an interoperable way. In practice, however, there are many standards available and a common mapping model between these standards is not in place. Therefore, in this paper we describe such a mapping model and its implementation aspects. In particular, we focus on the whole delivery context (i.e., terminal capabilities, network characteristics, user preferences, etc.) and investigated the two most prominent state-of-the-art description schemes, namely User Agent Profi le (UAProf) and Usage Environment Description (UED).}, keywords = {CC/PP, DCO, Delivery Context, Metadata, UAProf, UED.t}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77958067245\&partnerID=40\&md5=4ec9bec6bf35fd2f1a58a4be7f5ec64a}, author = {Timmerer, C. and Jabornig, J. and Hellwagner, H.} } @article {230, title = {System of boosting voting with multiple learning algorithms}, journal = {Journal of Digital Information Management}, volume = {8}, year = {2010}, note = {Export Date: 10 July 2014}, month = {2010}, pages = {153 - 159}, abstract = {The Ensemble classifier has been an active research topic in the area of machine learning. In a classification task, the ensemble scheme determines a final class label from several individual results which are usually generated by several individual classifiers according to two major principles. The first is to use multiple learning algorithms to form the set of individual outcomes, and the second is to train a set of data fractions, which are generated from a given training dataset, with a weak learning algorithm to generate the set of results. The advantage of the first principle is on classification stability, whereas that of the second principle is on the accuracy improvement in terms of classification accuracy. Thus far, most studies in the literature have been based on either a study of the two principles of ensemble. In this paper we propose a new ensemble scheme to combine the two principles simultaneously. We evaluate the performance on a classification task. Experimental results on several UCI benchmark datasets demonstrate that the proposed framework achieves improved performance in terms of classification accuracy compared to the conventional approaches.}, keywords = {Boosting voting, Classification, Ensemble classifier, Majority voting}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-79960667758\&partnerID=40\&md5=c1ce08210de8719732261454255800d9}, author = {Chen, C.-H. and Hsu, C.-C.} } @article {187, title = {A secondary storage scheme for multidimensional data preserving proximity}, journal = {Journal of Digital Information Management}, volume = {7}, year = {2009}, note = {Export Date: 10 July 2014}, month = {2009}, pages = {227 - 234}, abstract = {Multidimensional arrays storing multidimensional data in MOLAP are usually very sparse. They also suffer from the problem that the time consumed in sequential access to array elements heavily depends on the dimension along which elements are accessed. This dimension dependency would be caused by arranging multidimensional data in linear order on secondary storage and the logical proximity among the multidimensional data would be lost in physical storage. This situation can be alleviated by dividing the whole array into the set of subarrays called "chunks". However, further dimension dependency would be caused, unless the compressed chunks are arranged judiciously in the page buffer. The difference among the dimension cardinalities could also cause dimension dependency; slice operation along a dimension of large cardinality tends to consume much time. We will alleviate these two kinds of dimension dependency by introducing the notion of an "extended chunk". Extended chunks can contribute to preserve the logical proximity by adapting flexibly to the usual situation where data densities are very low and are not uniformly distributed. Based on extended chunks, we will propose secondary storage schemes for multidimensional datasets using a space-filling curve such as Z-curve. The evaluation result shows that the proposed storage schemes exhibit better performance while alleviating the dimension dependency.}, keywords = {Chunk, MOLAP, Multidimensional array, Z-ordering}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953264906\&partnerID=40\&md5=267ce77ab223e1b13bb8dbb5b851b85d}, author = {Shimada, T. and Tsuji, T. and Higuchi, K.} } @article {174, title = {Signing digital documents in hostile environments}, journal = {Journal of Digital Information Management}, volume = {7}, year = {2009}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2009}, pages = {106 - 113}, abstract = {Digital signature is nowadays a consolidated machinery allowing the management of electronic documents with full legal power. In this scenario, digital signature represents thus the key issue on every process of document dematerialization toward which both private and public organizations, as well as simple citizens, are moving quickly. Unfortunately, digital signature suffers from a severe vulnerability, directly deriving from the potential untrustworthiness of the platform where the signature generation process runs, enabling a set of possible dangerous attacks. The basic reason of this vulnerability is that an even secure smart card is anyway a handicapped computer, since it misses I/O devices so that there is no trusted control about the link between the document to sign and the digest received from the smart card. Exploiting such a weakness, the attacker can intrude in order to obtain signed documents with no intention from the subscriber. The problem is inherently unsolvable, provided that the current signature infrastructure, as well as its legal value, are maintained. In this paper we propose a new approach to contrasting the above problem, from which we derive two techniques with different features in terms of efficiency and robustness. The nice feature of our proposal, beside its effectiveness, is that it totally preserves the current software and legal infrastructure.}, keywords = {Digital signature, Legal issues in digital signature, Non-repudiation, Security and identity management in e-activities}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350635834\&partnerID=40\&md5=5181ea4d5763adab38c1aa2e6e360ecb}, author = {Buccafurri, F. and Lax, G.} } @article {200, title = {Smart electronic visitor information management system with biometric verification}, journal = {Journal of Digital Information Management}, volume = {7}, year = {2009}, note = {Cited By (since 1996):2Export Date: 10 July 2014}, month = {2009}, pages = {318 - 325}, abstract = {Smart Electronic Visitor Information System (SEVIMS) is an application to replace traditional visitor registration and information management activities. SEVIMS able to record visitor information during visitor registration by using visitor{\textquoteright}s Malaysia Government Multipurpose Card (MyKad). An implementation of mobile smart card reader with biometric verification has increase the high level of security and access control. With additional features, the identity of visitor can be verify based on matching of his/her thumbprint with the thumbprint image stored in MyKad. The benefits of sophisticated SEVIMS are enhancing the level of security enforced in premises, providing an organized view of visitor records and reducing the time spent on managing visitor information.}, keywords = {Biometric, Fingerprint, MyKad, SEVIMS, Smart card}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-77953251164\&partnerID=40\&md5=c75349813dbd8d0247a33bb80770adc0}, author = {Noraziah, A. and Noorhuzaimi, M.N. and Junaida, S.} } @article {179, title = {Students{\textquoteright} review of acceptance, usability and usefulness of WebLab-Deusto}, journal = {Journal of Digital Information Management}, volume = {7}, year = {2009}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2009}, pages = {173 - 180}, abstract = {The paper shows the results of the evaluation of three remote labs implemented at the University of Deusto -WebLab-Deusto- as a learning tool. The paper presents the results of the surveys done by students since 2004. This survey consists of some questions and its main objective is to measure the acceptance, usability and usefulness of the remote laboratory developed at University of Deusto. To the best of our knowledge, this survey is the largest one in terms of number of academic years and total number of students involved.}, keywords = {Computing architecture, Hardware, Remote laboratories, Web laboratories}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-73249122403\&partnerID=40\&md5=ca83df5c2e11b7b56703ac6f3c0f0669}, author = {Garc{\'\i}a-Zubia, J. and Ordu{\~n}a, P. and Hern{\'a}ndez, U. and Angulo, I. and Irurzun, J.} } @article {176, title = {SVD-based image water marking}, journal = {Journal of Digital Information Management}, volume = {7}, year = {2009}, note = {Export Date: 10 July 2014}, month = {2009}, pages = {83 - 89}, abstract = {Advances in Internet technology have considerably facilitated the acquisition, representation, storage and distribution of images in digital format. These advances, however, made the unauthorized manipulation and reproduction of original digital images an easy process. Consequently, the design and development of effective digital image copyright protection methods have become necessary. Recently, digital image watermarking has emerged as a major technology to prevent illegal and malicious copying and distribution of digital images by embedding an unnoticeable information into the image content. In this paper, we propose an imperceptible and robust digital image watermarking algorithm. The algorithm is based on cascading two powerful mathematical transforms; the Discrete Wavelet Transform (DWT) and the Singular Value Decomposition (SVD). Combining the two transforms compensates for the drawbacks of each other, resulting in a very effective watermarking. Simulation results demonstrated the effectiveness of our proposed algorithm.}, keywords = {Digital image watermarking, Discrete Wavelet Transform (DWT), Frequency-domain watermarking, Image copyright protection, Non-invertible watermarking algorithm, Singular Value Decomposition (SVD)}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350657176\&partnerID=40\&md5=f1e603314fd32dcb9a0c53258db06232}, author = {Al-Haj, A. and Manasrah, T.} } @article {156, title = {Service-oriented workflow}, journal = {Journal of Digital Information Management}, volume = {6}, year = {2008}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2008}, pages = {118 - 127}, abstract = {The advantages of Information and Communication Technologies (ICT) have forced many enterprises to reconsider the way their business processes are undertaken. Among various Information Technologies, the Workflow Management System greatly improves the efficiency of business processes. The challenge for Workflow Systems relies on their ability to align ICT and the processes of production and business. They should support the strategic policy of the enterprise and quickly respond to on-demand business and opportunities. Unfortunately, they suffer from some lacks and limitations due to their monolithic architectures. Most Workflow Management Systems are dependent on technology platforms and partially conform to standards. We attempt throughout the present paper to propose the next generation of Workflow architectures. We conceive workflow systems as a set of services, which are generic and platform-independent. Services are self-contained and fully-customized. Workflow services are assembled from computational components (i.e. web services), which are loosely coupled. The new architecture is split into layers to guarantee a high level of abstraction, each of which is managed by a crucial Web Service known as the orchestrator service.}, keywords = {Design tools and techniques, Integrated environment, Interoperability, Software architectures, Standards, Workflow management}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-56849115934\&partnerID=40\&md5=00c78de5d2932b1fff3748d5f1636974}, author = {Badr, Y.} } @article {119, title = {A smart card based remote user authentication scheme}, journal = {Journal of Digital Information Management}, volume = {6}, year = {2008}, note = {Cited By (since 1996):1Export Date: 10 July 2014}, month = {2008}, pages = {256 - 261}, abstract = {Password based authentication schemes are commonly used to authenticate remote users. Many schemes have been proposed both with and without smart cards but each have Its own merits and demerits. This paper analyzes the security of an enhanced Dynamic ID based remote user authentication scheme and shows that the enhanced scheme has major security weaknesses. The paper also presents a new scheme which overcomes the weaknesses and provides better security strength.}, keywords = {Smart cards, User authentication, User passowords}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350745322\&partnerID=40\&md5=472b89ddad64850ae41b20e57c01c3b9}, author = {Misbahuddin, M. and Premchand, P. and Govardhan, A.} } @article {146, title = {Smoke detection for early fire-alarming system based on video processing}, journal = {Journal of Digital Information Management}, volume = {6}, year = {2008}, note = {Cited By (since 1996):3Export Date: 10 July 2014}, month = {2008}, pages = {196 - 202}, abstract = {The paper presents a smoke-detection method for early fire-alarming system based on video processing. The basic strategy of smoke-pixel judgment is composed of two decision functions: a chromaticitybased decision function in static characteristic and a diffusion-based decision function in dynamic characteristic. The chromatic decision rule is deduced by grayish color of smoke and the dynamic decision rule is dependent on the diffusion attribute of smoke. To give an appropriate alarm, a fuzzy scheme is introduced to enhance the reliability of alarming by checking if the quantity of smoke extracted increases with the checking time. Experimental results show that the proposed method can provide an early alarm at a lower false alarm rate before the fire burns up, and hence is very attractive for the important places, social security, commercial applications, and so on.}, keywords = {Fire-alarming, Fuzzy scheme, Image processing, Smoke detection, Smoke pixels}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-72449134788\&partnerID=40\&md5=1d71de0f8f9dde2103aa7102bd316fc3}, author = {Wang, D.-J. and Chen, T.-H. and Yin, Y.-H. and Chen, T.-Y.} } @article {128, title = {Special issue on digital information management}, journal = {Journal of Digital Information Management}, volume = {6}, year = {2008}, note = {Export Date: 10 July 2014}, month = {2008}, pages = {281 - 284}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70349983276\&partnerID=40\&md5=3307d00e9cbb24d7342a1b1218e9ac20}, author = {Badr, Y. and Chbeir, R.} } @article {152, title = {Special issue on digital information management}, journal = {Journal of Digital Information Management}, volume = {6}, year = {2008}, note = {Export Date: 10 July 2014}, month = {2008}, pages = {1 - 2}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-56849108171\&partnerID=40\&md5=967301b4d0cf740733a20c27b70edde4}, author = {Chbeir, R. and Pichappan, P. and Abraham, A.} } @article {133, title = {Standardized multimedia retrieval based on web service technologies and the MPEG query format}, journal = {Journal of Digital Information Management}, volume = {6}, year = {2008}, note = {Cited By (since 1996):6Export Date: 10 July 2014}, month = {2008}, pages = {315 - 331}, abstract = {In recent years, the growing number of digital audiovisual media files available over the internet or even on users hard discs is overwhelming. In order to support efficient storage and retrieval of those data, several comprehensive and rich multimedia retrieval systems (MMRS) have been introduced. Unfortunately, a standardized query format does not yet exist and almost every retrieval framework provides its own proprietary solution. Therefore, the ISO/IEC SC29 WG11 committee decided to contribute to this application by establishing the MPEG Query Format (MPQF). The MPQF is currently in Final Committee Draft (FCD) status and provides besides the standardization of messages from and to multimedia services also functionalities for service discovery, aggregated services and definition of service capability descriptions. In this context, the paper briefly introduces the MPQF and concentrates thereby on the management part. Based on this, a Web Service based framework is presented that realizes the management functionalities of MPQF. One of its central novel features is the distribution of a MPQF request to multiple multimedia services and the aggregation of individual result sets.}, keywords = {Audio visual media, ISO multimedia standards, MPEG query format}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-67650583071\&partnerID=40\&md5=ad0ab700b7cdca43c561426ac442090a}, author = {D{\textquoteright}Oller, M. and Bauer, K. and Kosch, H. and Gruhne, M.} } @article {67, title = {Sensitivity analysis of server placement on enterprise network topology through soft computing}, journal = {Journal of Digital Information Management}, volume = {5}, year = {2007}, note = {Export Date: 10 July 2014}, month = {2007}, pages = {1 - 7}, abstract = {We analyze the consequences when both the server placement problem and network topology problem are solved concurrently through soft computing. Both problems are formulated as a combined optimization problem, subject to a set of design and performance constraints while minimizing the enterprise network cost. We have coded the combined optimization problem within a soft computing methodology, which is based on a probabilistic genetic program for automatically searching the design space for good network topologies. The experimental results for synthesizing and optimizing 3-level enterprise network (65 user nodes) for an edge-server placement has demonstrated the effectiveness of our methodology in finding good solutions with a static workload in less than five minutes.}, keywords = {Analysis, Clustering, Edge-server placement, Network topology, Optimization, Soft computing, Web structure analysis}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33947320448\&partnerID=40\&md5=62ced3281abb66c04e4ac8f00c808c7b}, author = {Safar, M. and Habib, S.} } @article {100, title = {Social search with missing data: Which ranking algorithm?}, journal = {Journal of Digital Information Management}, volume = {5}, year = {2007}, note = {Export Date: 10 July 2014}, month = {2007}, pages = {249 - 261}, abstract = {Online social networking tools are extremely popular, but can miss potential discoveries latent in the social {\textquoteright}fabric{\textquoteright}. Matchmaking services which can do naive profile matching with old database technology are too brittle in the absence of key data, and even modern ontological markup, though powerful, can be onerous at data-input time. In this paper, we present a system called BuddyFinder which can automatically identify buddies who can best match a user{\textquoteright}s search requirements specified in a term-based query, even in the absence of stored user-profiles. We deploy and compare five statistical measures, namely, our own CORDER, mutual information (MI), phi-squared, improved MI and Z score, and two TF/IDF based baseline methods to find online users who best match the search requirements based on {\textquoteright}inferred profiles{\textquoteright} of these users in the form of scavenged web pages. These measures identify statistically significant relationships between online users and a term-based query. Our user evaluation on two groups of users shows that BuddyFinder can find users highly relevant to search queries, and that CORDER achieved the best average ranking correlations among all seven algorithms and improved the performance of both baseline methods.}, keywords = {Instant messaging, Ranking algorithms, Relation discovery, Social software}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350629888\&partnerID=40\&md5=a263e560496728c004285a55b37a4e27}, author = {Zhu, J. and Eisenstadt, M. and Gon{\c c}alves, A. and Denham, C. and Uren, V. and Song, D.} } @article {94, title = {Special issue on "Advances in querying non-conventional date sources"}, journal = {Journal of Digital Information Management}, volume = {5}, year = {2007}, note = {Export Date: 10 July 2014}, month = {2007}, pages = {178 - 179}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-44949092229\&partnerID=40\&md5=28170025218311b3a1d87a2ec56ac3ab}, author = {Cuzzocrea, A.} } @article {99, title = {Special issue on " web information retrieval" guest editorial}, journal = {Journal of Digital Information Management}, volume = {5}, year = {2007}, note = {Export Date: 10 July 2014}, month = {2007}, pages = {247 - 248}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-70350680438\&partnerID=40\&md5=855a794997ff155476fad28109d1f3a2}, author = {Ounis, I. and Van Rijsbergen, K. and Pichappan, P.} } @article {83, title = {Stack-based pattern matching algorithm for XML query processing}, journal = {Journal of Digital Information Management}, volume = {5}, year = {2007}, note = {Cited By (since 1996):4Export Date: 10 July 2014}, month = {2007}, pages = {167 - 174}, abstract = {With the popularity of XML as data exchange over the Web, querying XML data has become an important issue to be addressed. Since the logical structure of XML is a tree, establishing a parent-child (P-C), ancestor-descendant (A-D) or sibling relationship between nodes is essential for structural query processing. Thus, we propose using a < self-level: parent> labeling scheme to encode each element in the XML database by its positional information. Based on this labeling scheme, we further propose our TwigINLAB algorithm to optimize the query processing. Experimental results indicate that TwigINLAB can process both path queries and twig queries better than the TwigStack algorithm on an average of 27\% and 14\% respectively in terms of execution time using the XMARK benchmark dataset.}, keywords = {Labeling, Pattern matching, Query processing, Structural query, Twig query, XML}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-63149191050\&partnerID=40\&md5=a28a66080f0d1b4d84de686811194d9f}, author = {Haw, S.-C. and Lee, C.-S.} } @article {89, title = {Storage and indexing of relational OLAP views with mixed categorical and continuous dimensions}, journal = {Journal of Digital Information Management}, volume = {5}, year = {2007}, note = {Export Date: 10 July 2014}, month = {2007}, pages = {180 - 190}, abstract = {Due to the widespread adoption of location-based services and other spatial applications, data warehouses that store spatial information are becoming increasingly prevalent. Consequently, it is becoming important to extend the standard OLAP paradigm with features that support spatial analysis and aggregation. While traditional OLAP systems are limited to data characterized by strictly categorical feature dimensions, Spatial OLAP systems must provide support for both categorical and spatial feature dimensions. Such spatial feature dimensions are typically represented by continuous data values. In this paper we propose a technique for representing and indexing relational OLAP views with mixed categorical and continuous data. Our method builds on top of an established mechanism for standard OLAP and exploits characteristic properties of space-filling curves. It allows us to effectively represent and index mixed categorical and continuous data, while dynamically adapting to changes in dimension cardinality during updates. We have implemented the proposed storage and indexing methods and evaluated their build, update, and query times using both synthetic and real datasets. Our experiments show that the proposed methods based on Hilbert curves of dynamic resolutions offers significant performance advantages especially for view updates.}, keywords = {Continuous space, Space-filling curves, Spatial OLAP, View indexing}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-44949248100\&partnerID=40\&md5=a63605fb283d6f4f67f8f3aaa7a854be}, author = {Baltzer, O. and Rau-Chaplin, A. and Zeh, N.} } @article {31, title = {Self organizing sensors by minimization of cluster heads using intelligent clustering}, journal = {Journal of Digital Information Management}, volume = {4}, year = {2006}, note = {Cited By (since 1996):3Export Date: 10 July 2014}, month = {2006}, pages = {87 - 93}, abstract = {Minimization of the number of cluster heads in a wireless sensor network is a very important problem to reduce channel contention and to improve the efficiency of the algorithm when executed at the level of cluster-heads. This paper proposes a Self Organizing Sensor (SOS) network based on an intelligent clustering algorithm which does not require many user defined parameters and random selection to form clusters like in Algorithm for Cluster Establishment (ACE) [2]. The proposed SOS algorithm is compared with ACE and the empirical results clearly illustrate that the SOS algorithm can reduce the number of cluster heads.}, keywords = {Algorithm for cluster establishment, Intelligent clustering, Wireless sensor networks}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33748269465\&partnerID=40\&md5=09380a1feabe731dc94b96939ce3ea26}, author = {Shin, K. and Abraham, A. and Han, S.Y.} } @article {64, title = {Semantic, constraint \& preference based multimedia presentation authoring}, journal = {Journal of Digital Information Management}, volume = {4}, year = {2006}, note = {Cited By (since 1996):3Export Date: 10 July 2014}, month = {2006}, pages = {207 - 213}, abstract = {We present in this paper an integrated system that allows the management and annotation of multimedia objects stored in MPEG-7/21 repositories, and the specification and semi-automatic generation of multimedia presentations based on the content relationships that exist between the multimedia objects. This system is the outcome of the collaboration between the Technical University of Crete (TUC-MUSIC) and the University of Milan (UNIMI) in the CoCoMA (Content and Context Aware Multimedia Content Retrieval, Delivery and Presentation) project of the DELOS II European Network of Excellence on Digital Libraries. The resulting system is one of the main components of the CoCoMA infrastructure that aims to provide content- and context-aware rich interactive multimedia presentations by controlling data fusion and metadata reuse. The integrated system utilizes the SyMPA management and presentation authoring system developed by UNIMI and the DS-MIRF framework developed by TUC-MUSIC.}, keywords = {Authoring tools, Digital libraries, Multimedia presentations, Multimedia standards}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33845937945\&partnerID=40\&md5=762148820f31cebc540800656d2bbd38}, author = {Tsinaraki, C. and Perego, A. and Polydoros, P. and Syntzanaki, A. and Martin, A. and Christodoulakis, S.} } @article {28, title = {Semantic indexing and hyperlinking of multimedia news: The RitroveRAI system}, journal = {Journal of Digital Information Management}, volume = {4}, year = {2006}, note = {Export Date: 10 July 2014}, month = {2006}, pages = {63 - 72}, abstract = {Web services tend to offer functional and non-functional requirements and capabilities in an agreed, machine-readable format. The target is to provide automated services for discovering, selection and binding of information as a native capability of middleware and applications. However, the major limitations are due to the lack of clear and processable semantics. In this paper, a system, RitroveRAI, addressing the general problem of enriching a multimedia news stream with semantic metadata is presented. News metadata are explicitly derived from transcribed sentences or implicitly expressed into a topical category automatically detected. The enrichment process is accomplished by aligning individual audiovisual segments with news or journal articles reachable trough the Web. This distributed process designed for RitroveRAI enables several extensions in light of large scale and public access performance as suggested in the discussion of the evaluation results of our current system.}, keywords = {Hyper link structure, Meta data, Multimedia indexing, RitroveRAI, Semantic web, Web services}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33748253466\&partnerID=40\&md5=05e5487b09fcb109fd3c282449982ec4}, author = {Basili, R. and Cammisa, M. and Donati, E. and Moschitti, A.} } @article {63, title = {Some issues in the art image database systems}, journal = {Journal of Digital Information Management}, volume = {4}, year = {2006}, note = {Cited By (since 1996):5Export Date: 10 July 2014}, month = {2006}, pages = {227 - 232}, abstract = {In this paper we illustrate several aspects of art databases, such as: the spread of the multimedia art images; the main characteristics of art images; main art images search models; unique characteristics for art image retrieval; the importance of the sensory and semantic gaps. In addition, we present several interesting features of an art image database, such as: image indexing; feature extraction; analysis on various levels of precision; style classification. We stress color features and their base, painting analysis and painting styles. We study also which MPEG-7 descriptors are best for fine painting images retrieval. An experimental system is developed to see how these descriptors work on 900 art images from several remarkable art periods. On the base of our experiments some suggestions for improving the process of searching and analysis of fine art images are given.}, keywords = {Art databases, Image processing, Image search and analysis, MPEG 7, Multimedia databases}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33845946404\&partnerID=40\&md5=1b636067433b4b642b3499b0c6712dff}, author = {Stanchev, P.L. and Green Jr., D. and Dimitrov, B.} } @article {54, title = {Study of effectiveness of implicit indicators and their optimal combination for accurate inference of users interests}, journal = {Journal of Digital Information Management}, volume = {4}, year = {2006}, note = {Export Date: 10 July 2014}, month = {2006}, pages = {169 - 174}, abstract = {Retrieval and filtering systems may apply relevance feedback to gain information on users{\textquoteright} needs in order to improve their ad-hoc queries or long term profiling. Explicit relevance involves explicit ratings of documents or terms by the users and disrupts their normal patterns of browsing and searching. The alternative non-disruptive method is implicit feedback inferring users{\textquoteright} needs and interests by monitoring their regular interaction with the system. Some implicit indicators of interest, such as reading time, have been investigated in previous studies and were found indicative to the relevance of documents but not sufficiently accurate to substitute explicit ratings. In this paper we present several new relative implicit feedback indicators and examine their effectiveness as well as the effect of combining several implicit indicators. The paper describes a large-scale user study on which users{\textquoteright} searches were observed by a specially developed browser that recorded their behavior (implicit indicators) as well as their explicit ratings. The relationship between implicit indicators and explicit ratings was analyzed and found that a certain combination of implicit indicators achieved higher correlation with the explicit ratings than any of the individual indicators. We have also found that the newly suggested relative indicators are more indicative to the level of interest of the use in an information item than the non-relative indicators.}, keywords = {Implicit indicators, Relevance feedback, User modeling, User studies}, url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33749406365\&partnerID=40\&md5=aa35b421ac892afda1341ff1d8c1ae20}, author = {Shapira, B. and Taieb-Maimon, M. and Moskowitz, A.} }