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The number of Web services are growing rapidly on the Internet. Topics of services are becoming various. Semantic-based keyword search is used to retrieve proper services for service consumers. According to the semantic information implied in service database, we build a topic model to cluster and management related services. Our service recommendation approach can extract service patterns from correlated...
How we manage Web services depends on how we understand their variable parts and invariable parts. Studying them separately could make Web service research much easier and make our software architecture much more loose-coupled. We summarize two variable parts that affect Web service compositions: uncertain invocation results and uncertain quality of services. These uncertain factors affect success...
New Web services are emerging on the Internet, while some other Web services are obsolete for some reasons. Unfortunately, not all services are developed in accordance with rules of loose coupling in the software engineering. The consequence is that some services work well only with other services of older versions. The situation is much worse when we deal with composite services. Moreover, using...
In a composite service for multiple users, network position of multiple users are different, leading to users perceptions to one service are different. In addition, network parameter values, which vary due to many reasons (such as network congestions), influence QoS of Web services. We propose a reliable service composition method which uses multiple candidate services to process service requests...
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