Open AccessTrustworthy Service Selection Integrating Cloud Model and Possibility Degree Ranking of Interval Numbers
Author(s) -
Ma Hua,
Hu Zhigang,
Cai Meiling
Publication year - 2017
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2017.09.034
Subject(s) - trustworthiness , interval (graph theory) , ranking (information retrieval) , cloud computing , selection (genetic algorithm) , degree (music) , computer science , service (business) , computer security , mathematics , information retrieval , artificial intelligence , business , physics , combinatorics , acoustics , operating system , marketing
It has been challenging to select suitable services from abundant candidates in cloud environment. Aiming to the characteristics of batch computing mode and stream computing mode, a novel trustworthy service selection approach is proposed integrating cloud model and interval numbers theory. To facilitate potential users to understand the quality of service, the trustworthiness of service is described with interval number using reverse cloud generator, and the services with poor performance are filtered out by employing deviation degree or proximity degree. Two formulas of possibility degree of interval numbers are designed to compare the trustworthiness values between cloud services by utilizing probability zone analysis and geometrical analysis respectively, and the ranking method for possibility degree of interval numbers is exploited to select the most trustworthy service. The experiments show that this approach is effective to improve the accuracy of service selection and select trustworthy service for potential users in cloud paradigm.