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Liang Chen , Zhejiang University, Hangzhou
Jian Wu , Zhejiang University, Hangzhou
Hengyi Jian , Zhejiang University, Hangzhou
Hongbo Deng , University of Illinois at Urbana-Champaign, Urbana
Zhaohui Wu , Zhejiang University, Hangzhou
ABSTRACT
Web service composition helps users integrate services to create new large-granularity and value-added composite services. Most recent studies have focused on automatic AI-Planning-based static or dynamic composition at functional- or process-level. However in industry, most business applications are still composed manually or semi-automatically with abundant domain expertise. Consequently, to build a good and reliable composite service is really a time-consuming and professional task. Inspired by the Instant Search of Google, we propose an Instant recommendation approach to provide optimal suggestions while a composition process incrementally proceeds. In our model, we fully utilize the execution log of composite services, and intend to identify appropriate services which have been proved to be more reliable and robust, therefore those services have higher probability to fulfill users' demands. To find the top-k possible composite services in real-time, we adopt the A* search algorithm with various pruning heuristics to dynamically expand the search space efficiently. Experiments on a real-world dataset with 15,959 real web services crawled from the Internet demonstrate the effectiveness and efficiency of the proposed approach.
INDEX TERMS
Quality of Service, Services Computing, Application Services and Standards, Web Services Standard Stack, Service Composition
CITATION
Liang Chen, Jian Wu, Hengyi Jian, Hongbo Deng, Zhaohui Wu, "Instant Recommendation for Web Services Composition", IEEE Transactions on Services Computing, , no. 1, pp. 1, PrePrints PrePrints, doi:10.1109/TSC.2013.32
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