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The Evolution of Web Service-Flow

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3 Author(s)
Yongzhong Cao ; Dept. of Comput. Sci. & Technol., Nanjing Univ. of Aeronaut. & Astronaut., Nanjing ; Qiulin Ding ; Rigui Zhou

Web service-flow having dynamic, distributed and flexible characteristics makes the on-line management differ from the classical workflow. This management of Web service-flow should not only run the service-flow accurately, but should also evolve it dynamically and be sure to provide a nice combination every time. At first,this paper extends the definition of WSF with a candidate set of services, and then a composite score function regarding the capability of the service-flow is presented,according to the budget of combination, time limit and the credit of service. Some candidates, which adapted well touser requirement and system environment, are selected by using genetic algorithm, it enables the agent evolve the service flow dynamically. Experimental result shows that SELECTER not only gives the superior service combination efficiently, but also protects the system integrality.

Published in:

Genetic and Evolutionary Computing, 2008. WGEC '08. Second International Conference on

Date of Conference:

25-26 Sept. 2008