Publication Date:
2012-09-25
Description:
We propose in this paper a new approach for bootstrapping trust of Web services in which the interactions of a Web service with a user are observed during a certain time frame. The observations sequence is modeled as a Hidden Markov Model and matched against pre-defined trust patterns in order to assess the behavior of such Web service. The pre-defined trust patterns are specifications of possible behaviors of Web services such as trusted, malicious, betraying, oscillating, and redemptive. Based on the matching result, an initial trust value is assigned to the Web service. Our experimental results show that our approach enjoys good precision and recall values and provides a fair distribution of trust values. Besides, the proposed approach is applied on a dataset of real-world Web services. A comparative study with published bootstrapping approaches shows a better bootstrapping success rate for our new approach. Content Type Journal Article Category Regular Paper Pages 1-28 DOI 10.1007/s10115-012-0554-1 Authors Hamdi Yahyaoui, Computer Science Department, Kuwait University, 5969, Safat, 13060 State of Kuwait Sami Zhioua, Information and Computer Sciences Department, KFUPM 958, Dhahran, 31261 KSA Journal Knowledge and Information Systems Online ISSN 0219-3116 Print ISSN 0219-1377
Print ISSN:
0219-1377
Electronic ISSN:
0219-3116
Topics:
Computer Science
