专利领域本体概念语义层次获取

Deriving Concept Semantic Hierarchy of Ontology in Patents

根据专利领域本体构建的需求，提出一种专利领域本体概念语义层次获取方法。通过分析专利领域技术主题概念在形式化时的构词规律以及上下位关系的表现方式，利用相对修饰度和关联规则识别上下位关系。然后分析上下位关系的特性，总结关系冗余和关系冲突的消除规则，构建出专利领域概念语义层次图。实验结果表明，上下位关系识别方法具有较高的准确率和召回率，构建概念语义层次图的方法取得了较好的关系冗余和关系冲突的消除效果，证实了本文方法的有效性。

For the demand of ontology construction in patent domain, we propose a concept semantic hierarchy induction approach. For this purpose, the work isdiscomposed to two dimensions. First, we analyze the word-formation rules and hierarchical relation presentation forms of technology theme concepts in patent domain. Based on this, a relative decoration based approach and an association rule based approach areproposed to hierarchical relation extraction. Second, characteristics of hyponymy relations areanalyzed to achieve those rules to eliminate redundancies and conflictions in the extracted relation. The experimental result shows that the approach of hierarchical relation extraction can achieve high accuracy and recall rate, the approach of concept semantic hierarchy induction can achieve satisfied elimination result. The resultprovesthe validity of the approach in this paper.