关键词: 烟花算法, 服务质量, Web服务, Web服务组合

Abstract: With the increasingly rich Web service, how to dynamically select the composite services with high overall performance has become a service portfolio optimization urgent problem to be solved from a large number of candidate services. In order to stabilize and efficiently solve the problem of service portfolio in large data sets, a Cauchy fireworks algorithm is proposed. In the search process, the algorithm enhances the global search capability of the algorithm though leading to Cauchy variation operator. Using elite selection strategy, the time cost of the algorithm is effectively reduced. The experimental results verify the feasibility and stability of this algorithm in the large-scale service combination optimization.

Key words: fireworks algorithm, quality of service, Web service, Web services portfolio