基于本体的知识库个性化检索方法研究

An Ontology-based Personalized Knowledge Retrieval Method

在使用本体技术构建知识资源检索系统的研发过程中，常会遇到检索结果同检索者本身实际情况不符，以及计算机难以理解用户实际需求的问题。为此，我们提出了一种基于本体的知识库个性化检索方法，将知识服务的本体构建、服务定义的过程同用户的个性化信息有机结合起来，并在服务执行的使用用户个性化信息来优化执行结果。实践表明，该方法可以比较精确的识别用户个性化需求，简化用户输入，提升查询结果质量。

There are two major problems in semantics-based knowledge services.One problem is search results only consider the query string, but not actual conditions. The other problem is computer can hardly understand the request what user asked. To solve the problems, authors proposed anontology-based personalized knowledge retrieval method. The method usesontology-based knowledge servicedescription, provides personalization information represent and capture model,andexecute the knowledge service with personalization information. Experimentations indicate this method can identify the user ’s potential request, remark-ably improve the quality of knowledge retrieval.