PROCESSING MULTIPLE REQUESTS TO CONSTRUCT SKYLINE COMPOSITE SERVICES
Keywords:
Web Services, Skyline Composition, MaterializationAbstract
The performance of a composite service is determined by the performance of involved component services. When multiple non-functional criteria are considered, users are re- quired to express their preferences over different quality attributes as numeric weights in existing methods. However, this imprecise method may not reflect the natural ordering of services and thus could miss some user-desired services. In this paper, we propose a com- position framework to construct multiple skyline composite services for each individual request. We also discuss how a service registry can effectively deal with multiple requests simultaneously by materializing the intermediate composite services. We evaluate the efficiency and effectiveness of our methods through extensive experiments.
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