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

fYear

2009

Firstpage

430

Lastpage

435

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Grid and Cooperative Computing, 2009. GCC '09. Eighth International Conference on

Conference_Location

Lanzhou, Gansu

Print_ISBN

978-0-7695-3766-5

Type

conf

DOI

10.1109/GCC.2009.48

Filename

5279522