关键词: 产品知识库, 电子商务网站, 本体构建, 数据抽取

Abstract: According to the semi-structured products page data in E-commerce website,a representation and construction method for product requirements knowledge'based on ontology was proposed,which included concept model,knowledge base template and knowledge acquisition.In concept model,a mapping method was designed from presentation of product requirements formalization to knowledge representation based on OWL descriptive language ontology;in knowledge base template,two kinds of representation was proposed to divide knowledge base template'structure into logical structure and collection point;for knowledge acquisition,a E-commerce website page templates extracting method was proposed based on wrapper induction.The feasibility and effectiveness of the method were proved by example of mobile website knowledge base system.

Key words: product knowledge base, e-business website, ontology construction, data extraction