Title :
Trust-Enhanced Component Service Selection Algorithm in Service Composition
Author :
Wang, Yong ; Dai, Guiping
Author_Institution :
Coll. of Comput. Sci. & Technol., Beijing Univ. of Technol., Beijing, China
Abstract :
With trust degree set to be the foundation of component service selection in composite service, the execution and selection of composite services could be carried out more effectively based on the trust degree of service; It is favorable for those component services with higher trust degree to join into the process of service composition, thus, enhances the trustiness of composite service. Through introducing trust concept into service composition, trust-enhanced component service selection problem is discussed. Mathematical model of component service selection is established, and then selection algorithm based on the ant colony system is designed. Experiment results prove that the algorithms for trust-enhanced component service selection have a good optimizing performance.
Keywords :
Web services; directed graphs; grid computing; optimisation; security of data; DAG; Web service composition; ant colony system; composite service execution; composite service selection; grid computing; mathematical model; optimisation; trust-enhanced component service selection algorithm; Algorithm design and analysis; Ant colony optimization; Availability; Cost function; Delay; Educational institutions; Mathematical model; Ontologies; Quality of service; Web services; Ant Colony System; Service Composition; Trust; Web Service;
Conference_Titel :
Grid and Cooperative Computing, 2009. GCC '09. Eighth International Conference on
Conference_Location :
Lanzhou, Gansu
Print_ISBN :
978-0-7695-3766-5
DOI :
10.1109/GCC.2009.48
