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In this paper, we propose an approach to simulation and validation of Web services choreography described by WS-CDL. Simulation of Web services choreography is important to analyze and test the choreography model written by SOA designers. On the other hand, WS-CDL specification regulates the correct behaviors a WS-CDL document has to obey. Thus, constraints(More)
In this paper, we propose an approach to simulation and validation of Web services choreography described by WS-CDL. Simulation of Web services choreography is important to analyze and test the choreography model written by SOA designers. On the other hand, CDL specification regulates the correct behaviors a CDL program has to obey. Thus, constraints are(More)
Considering no very important passengers’ egergency, the existing elevator group control strategies all have their own disadvatages. In order to meet the VIP’s needs first, a new elevator group control strategy along with the conception of averge hall call waiting economy consumption (AHCWEC) are proposed. At the same time, an elevator system model based on(More)
A generalized collaboration network with preferential attachment is proposed in this paper, in which the number of collaborators in a collaboration project is a random variable, and the collaborators are selected preferentially from the existing network. The analytical expressions for the degree distribution are obtained based on the techniques of markov(More)
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