Modeling and simulation of QoS-aware Web service selection for provider profit maximization

Tsesmetzis, D; Roussaki, I; Sykas, E

dc.contributor.author	Tsesmetzis, D	en
dc.contributor.author	Roussaki, I	en
dc.contributor.author	Sykas, E	en
dc.date.accessioned	2014-03-01T01:26:41Z
dc.date.available	2014-03-01T01:26:41Z
dc.date.issued	2007	en
dc.identifier.issn	0037-5497	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18171
dc.subject	Integer programming	en
dc.subject	Ontologies	en
dc.subject	QoS-aware service selection	en
dc.subject	Selective multiple choice knapsack problem	en
dc.subject	Semantic web	en
dc.subject	Service provider profit maximization	en
dc.subject.classification	Computer Science, Interdisciplinary Applications	en
dc.subject.classification	Computer Science, Software Engineering	en
dc.subject.other	Computer simulation	en
dc.subject.other	Integer programming	en
dc.subject.other	Internet service providers	en
dc.subject.other	Ontology	en
dc.subject.other	Quality of service	en
dc.subject.other	Semantic Web	en
dc.subject.other	User interfaces	en
dc.subject.other	Selective multiple choice knapsack problem	en
dc.subject.other	Service bandwidth	en
dc.subject.other	Service provider profit maximization	en
dc.subject.other	Web services	en
dc.title	Modeling and simulation of QoS-aware Web service selection for provider profit maximization	en
heal.type	journalArticle	en
heal.identifier.primary	10.1177/0037549707079229	en
heal.identifier.secondary	http://dx.doi.org/10.1177/0037549707079229	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	Web Services (WSs) are a new breed of web application that is gaining momentum. One of the research challenges it brings along is the establishment of an interoperable semantic framework suitable to represent not only the functional, but also the non-functional features of WSs, i.e. their Quality-of-Service (QoS), which in most cases are not included in the WS description. Nevertheless, integrating QoS features in WS profiles is to the advantage of both users and providers, as it supports QoS-aware WS selection and composition addressing the user's QoS requirements, while enabling WS providers to increase their profits. The purpose of this paper is twofold. On the one hand, it aims to present a QoS ontology framework adequate for WS provision. On the other hand, it studies the problem of providers that receive concurrent requests of numerous customers for WSs demonstrating different bandwidth and price properties. It introduces the ""Selective Multiple Choice Knapsack Problem"" that aims to identify the services that should be delivered to the customers in order to maximize the provider's profit, subject to maximum bandwidth constraints on the server side. Thus, the QoS-awareness in this version of this problem is limited to the consideration of two QoS parameters: service bandwidth and cost. The problem is solved by a proposed algorithm that has been empirically evaluated via numerous experiments. © 2007 The Society for Modelling and Simulation International.	en
heal.publisher	SAGE PUBLICATIONS LTD	en
heal.journalName	Simulation	en
dc.identifier.doi	10.1177/0037549707079229	en
dc.identifier.isi	ISI:000247266200006	en
dc.identifier.volume	83	en
dc.identifier.issue	1	en
dc.identifier.spage	93	en
dc.identifier.epage	106	en