Web Service Recommendation based on Knowledge Graph Convolutional Network and Doc2Vec

With the rapid development of Internet, the number of Web services is increasing sharply, which makes it more difficult for Mashup developers to find suitable Web services. Nowadays, there are numerous methods to improve Web service recommendation, but it is still a challenging problem to recommend Web services with both good accuracy and satisfying diversity. Collaborative filtering is a common algorithm in recommendation system, but it often faces serious cold start and sparsity problems. To alleviate the above problems, this paper proposes a Web service recommendation method based on knowledge graph convolutional network and Doc2Vec. First of all, it constructs the knowledge graph of Web services based on the additional information such as the categories, developers, scope of application of Web services, and adopts knowledge graph convolutional networks to mine the higher-order relationship between Web service and the preference information of Mashups. Secondly, it employs Doc2Vec to mine the semantics of Web service description documents, and integrates the Mashup preference information and the Mashup semantic information in the training process, so as to predict Web services needed for Mashup development. Finally, the experiment is conducted on the latest Programmable Web dataset and the experimental results show that the recommended performance of the proposed method is better than that of FM, NCF, CKE, RippleNet, KGCN.