Component trust for web service compositions

Mohammad Reza Motallebi*, Fuyuki Ishikawa, Shinichi Honiden

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


The concept of trust in web services describes the degree of belief that a client or a group of clients have over services functioning satisfactorily and providing the expected results. As services are usually invoked in composition with other services, judging on their trustworthiness gets more complicated, yet computing their trustworthy becomes a desired goal. Existing work only take the trust of each individual service into account, regardless of the context of the composition. They also do not use the data gained from other clients for selecting the most trustful composition and preparing for possible service failures. In our work we first introduce the concept of Combination Reputation, which reflects the commonness and popularity of invoaction of a pair or group of services among other clients. By interpreting the trust and reputation values as subjective probability, we define the Component Trust of the services in the composition, which reflects the degree of belief the client has over components of services performing satisfactorily. We model the web service composition as a Bayesian network and integrate the above trust values into the network and show how to compute the global trust of the composition.

Original languageEnglish
Title of host publicationIntelligent Web Services Meet Social Computing - Papers from the AAAI Spring Symposium
Number of pages6
Publication statusPublished - 2012 Aug 17
Externally publishedYes
Event2012 AAAI Spring Symposium - Stanford, CA, United States
Duration: 2012 Mar 262012 Mar 28

Publication series

NameAAAI Spring Symposium - Technical Report


Other2012 AAAI Spring Symposium
Country/TerritoryUnited States
CityStanford, CA

ASJC Scopus subject areas

  • Artificial Intelligence


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