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The computational grid is evolving as a service-oriented computing infrastructure that facilitates resource sharing and large-scale problem solving over the Internet. Service discovery becomes an issue of vital importance in utilising grid facilities. This paper presents ROSSE, a Rough sets based search engine for grid service discovery. Building on Rough sets theory, ROSSE is novel in its capability to deal with uncertainty of properties when matching services. In this way, ROSSE can discover the services that are most relevant to a service query from a functional point of view. Since functionally matched services may have distinct non-functional properties related to Quality of Service (QoS), ROSSE introduces a QoS model to further filter matched services with their QoS values to maximise user satisfaction in service discovery. ROSSE is evaluated in terms of its accuracy and efficiency in discovery of computing services.
Knowledge engineering methodologies, Internet reasoning services, Intelligent Web Services and Semantic Web

M. Li, O. Rana, Z. Wang and B. Yu, "Grid Service Discovery with Rough Sets," in IEEE Transactions on Knowledge & Data Engineering, vol. 20, no. , pp. 851-862, 2007.
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