Journal
IEEE TRANSACTIONS ON SERVICES COMPUTING
Volume 14, Issue 3, Pages 695-709Publisher
IEEE COMPUTER SOC
DOI: 10.1109/TSC.2018.2830773
Keywords
Correlation; Indexes; Task analysis; Electronic mail; Service-oriented architecture; Quality correlation; service composition; quality of service; aggregation algorithm; index graph
Funding
- National Key Research and Development Program of China [2015BAK24B01, 2017YFB1400600]
- National Science Foundation of China [61772461]
- Key Research and Development Project of Zhejiang Province [2015C01027]
- Australian Research Council [DP18010021]
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Enterprises are increasingly forming strategic alliances as a way to gain competitive advantages in the global market. This paper introduces a novel approach named Q(2)C to systematically model quality correlations among services and enable efficient queries for service compositions. Extensive experiments on a real-world web service dataset demonstrate the effectiveness and efficiency of Q(2)C.
As enterprises around the globe embrace globalization, strategic alliances among enterprises have become an important means to gain competitive advantages. Enterprises cooperate to improve the quality or lower the prices of their services, which introduce quality correlations, i.e., the quality of a service is associated with other services. Existing approaches for service composition have not fully and systematically considered the quality correlations between services. In this paper, we propose a novel approach named Q(2)C (Query of Quality Correlation) to systematically model quality correlations and enable efficient queries of quality correlations for service compositions. Given a service composition and a set of candidate services, Q(2)C first preprocesses the quality correlations among the candidate services and then constructs a quality correlation index graph to enable efficient queries for quality correlations. Extensive experiments are conducted on a real-world web service dataset to demonstrate the effectiveness and efficiency of Q(2)C.
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