WSCN: Web Service Composition Based on Complex Networks

Abstract

Currently the research of service science mainly focuses on the composition of distributed and heterogeneous Web services. Most of the approaches proposed to tackle this problem are based on cross-platform workflow and AI planning. However, until very recently, little attention is paid to the approaches based on complex networks. In the era of Big Data, Web services are created and updated in a fast way and their relationships are becoming more complicated. Therefore, studying the basic characteristics of services networks based on complex network theory will be meaningful. In this paper, we propose a framework to model the services network as a directed complex network, in which nodes represent the atomic Web services and the data communicated between them while edges represent the dependent relationship between data and service nodes. Based on the modeled network, we further apply graph search algorithms to solve the problem of Web services composition. Experimental results are given to validate the flexibility and efficiency of our framework.