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To enhance the correctness of the composition of services, we propose a graph-based composition method that explicitly specifies and uses the functional semantics of Web services. Actions, which represent what services actually do, are identified to specify the functional semantics of services. Dependencies among services are organized and stored as an AND/OR graph, on which composition is performed...
Most of studies on the automated generation of composite Web services create composite services by chaining available services’ inputs and outputs, but do not consider their functional semantics. Therefore, unsatisfied results may be generated against users’ intentions. Furthermore, the time complexity is very high since every possible combination of available services should be considered. To resolve...
There have been many studies on the automated composition of Web services. Most of previous works build a composite Web service by chaining the input and output of a Web service without considering the functional semantics of the Web service itself. However, they cannot guarantee that the service composed will provide a requested functionality. Furthermore, they have high time-complexity since every...
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