@article {57,
	title = {GraphOnto: OWL-based ontology management and multimedia annotation in the DS-MIRF framework},
	journal = {Journal of Digital Information Management},
	volume = {4},
	year = {2006},
	note = {Cited By (since 1996):1Export Date: 10 July 2014},
	month = {2006},
	pages = {214 - 219},
	abstract = {We present here GraphOnto, a software component and an API that allow the definition and editing of both standard-based and domain OWL ontologies and their use in multimedia information system components. In our working environment an OWL Upper Ontology that captures the MPEG-7 MDS is utilized and OWL domain ontologies extend the upper ontology with domain knowledge. The ontologies imported in GraphOnto are parsed so that graphical ontology browsing and editing interfaces are automatically generated. The ontologies are used to guide the semantic multimedia annotation in a standardized manner. OWL Ontology mappings, expressed using OWL constructs, are supported and allow the definition of personalized ontologies. Personalization of the GraphOnto user interface on the application, task and user levels is provided. In addition, GraphOnto interoperates with an MPEG-7 Repository both for semantic entity reuse during multimedia content annotation and for semantic description storage. GraphOnto has been evaluated against Prot{\'e}g{\'e} and clearly outperforms it.},
	keywords = {MPEG 7, Ontology, Ontology standards, Semantics},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33845937025\&partnerID=40\&md5=b72758db21f6febb306c3712ffb375fb},
	author = {Polydoros, P. and Tsinaraki, C. and Christodoulakis, S.}
}
@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 {61,
	title = {User interactions with multimedia repositories using natural language interfaces - OntoNL: An architectural framework and its implementation},
	journal = {Journal of Digital Information Management},
	volume = {4},
	year = {2006},
	note = {Cited By (since 1996):4Export Date: 10 July 2014},
	month = {2006},
	pages = {220 - 226},
	abstract = {We present a generalized architectural framework for constructing and using natural language interfaces for interactions with multimedia repositories. The system allows the users to specify natural language queries about the multimedia content with rich semantics. It uses an extensive set of methodologies and tools for linguistic processing, and utilizes the MPEG-7 and the domain ontologies to reduce the ambiguities in the natural language and to rank the results. We describe the implementation of this framework for supporting interactions with a multimedia repository, described with the MPEG-7 MDS (Multimedia Description Schemes) structures, that also uses User Profile information for better ranking of the result queries.},
	keywords = {MPEG 7, Natural language interface, Ontology, Semantics},
	url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-33845925229\&partnerID=40\&md5=78be53ce109a805416d2c49e78d10de5},
	author = {Karanastasi, A. and Zotos, A. and Christodoulakis, S.}
}
