Constructing Service Clusters Based on Service Space

With the development of Web services, the quantity of services in clusters has increased rapidly, and the time complexity of service clustering becomes higher. To solve this problem, a new construction method of service clusters is proposed based on service space in this paper. The main innovation is the construction of service space. Firstly, a mathematical space is defined. Then, services are abstracted and quantized to the space based on ontology trees. The experiment illustrates that the time complexity of constructing service clusters is decreased. Moreover, the construction of service space and the mapping rules are shown in this paper. A service cluster and its dynamic library are constructed based on service space. The structure, updating mechanism and generation flows of service clusters are modeled by logic Petri nets. Finally, the validity and advantages of proposed methods are illustrated by some experiments and comparative analysis.

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