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In this paper we present a hybrid approach for automatic composition of web services that generates semantic input-output based compositions with optimal end-to-end QoS, minimizing the number of services of the resulting composition. The proposed approach has four main steps: 1) generation of the composition graph for a request; 2) computation of the optimal composition that minimizes a single objective...
With the rapid development of the logistics industry, there are more and more logistics services on the Internet platforms. However, a single atomic service has not been able to meet the complex needs of users. So the service composition in large-scale environment is very meaningful. In this paper, we propose a web service composition approach for logistics, which consists of three main steps: 1)...
This paper presents a hybrid approach for automatic composition of Web services that generates semantic input-output matching compositions minimizing the number of services and optimizing the global QoS. The proposed approach has four main steps: 1) generation of the composition graph for a request, 2) computation of the optimal QoS of the composition graph, 3) multi-step optimizations of the graph...
The traditional web service composition methods always use certain workflow to solve requests which is inflexible and needs a lot of human intervention. To solve this problem, we propose an automatic generation workflow system. This system can generate workflow automatically according to the request provided by the Web service requester. First, construct the field repository, the workflow repository...
Under grid environment, a resource discovery mechanism could dramatically affect both performance and efficiency of the system. Currently, however, since most models of grid discovery are centralized, keyword based matching ones, outcomes of discovery could seldom cater customers' needs. This paper puts forward a grid resource discovery model (GRDM) based on formal ontology semantics (FOS) by analyzing...
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