01854nas a2200205   4500008004100000245008300041210006900124260000900193300001400202490000600216520115100222653002401373653002901397653002301426653002801449653001301477100001801490700002301508856011701531       2010                        eng d00aQos-aware selection of web service compositions using Harmony Search algorithm0 aQosaware selection of web service compositions using Harmony Sea  c2010  a160 - 1660 v83 aExtensive use of web services has lead to introduce web service compositions to execute business workfiows. Since several function equivalent services, provided by different service providers, may be available in the Web, the problem of selection of web service compositions arises. QoS aware selection means considering the quality of the service composition in choosing constituent services. So a method is needed for computing the quality of a composition and determining the composition with the (almost) best quality. The resulting composite has optimal quality and satisfies user's quality constraints. In this paper, the problem of QoS aware selection of web service composition is modeled as an optimization problem. Then a variation of Harmony Search algorithm is used to find a near optimal composition. Harmony Search is a recently developed optimization algorithm that mimics the improvisation process. The proposed method based on Harmony Search has been applied to a large variety of composition schemas, generated by a simulation software, and the results show that the proposed method works faster, compared with other approaches.10aGlobal optimization10aHarmony Search algorithm10aQuality-of-service10aWeb service composition10aWorkflow1 aJafarpour, N.1 aKhayyambashi, M.R.  uhttp://www.scopus.com/inward/record.url?eid=2-s2.0-79960212292&partnerID=40&md5=8b2aa95f15cbf2d77baea346d4870d04