基于超图的知识表示及检索相似性度量研究

Research on Hypergraph-Based Knowledge Representation and Similarity Measurement for Retrieval

在分析传统的基于图论知识表示方法不足的基础上,引入超图进行知识表示。超图能够有效表达知识的多元关系,表达层次与非层次结构。针对知识检索问题,通过定义知识元素组成相似度、知识拓扑结构相似度,提出一种知识综合相似性度量方法。最后通过实验验证该方法的有效性。

This paper firstly analyses the shortcomings of knowledge representation methods besed on traditional Graph Theory, then introduces hypergraph for knowledge representation which is able to represent the multi - relationship, hierarchical and non - hierar- chical structure of knowledge. Faced with the problem of knowledge retrieval, this paper defines the similarity of knowledge element constitution and topological structure, and proposes a comprehensive measuring method of knowledge similarity. Lastly, the paper tests the effectiveness of the proposed method by an experiment.