QoS-aware web service selection with negative selection algorithm

摘要: Web service selection, as an important part of web composition, has direct influence on the quality composite service. Many works have been carried out to find efficient algorithms for (QoS)-aware selection problem in recent years. In this paper, a negative immune algorithm (NSA) is proposed, and far we know, first time that NSA introduced into problem. Domain terms operations are firstly redefined paper aiming at QoS-aware then constructed demonstrate how use principle solve question. Thirdly, inconsistent analysis between local exploitation global planning presented, through which alteration scheme can transfer exploration correctly. It general adjusting method independent algorithms. Finally, extensive experimental results illustrate NSA, especially with consistency weights strategy (NSA+), significantly outperforms particle swarm optimization clonal The superiority NSA+ over others more evident increase component tasks related candidate services.