【摘要】 分析传统的信息检索系统存在的不足及其原因,将本体加入到检索系统中,提出一个基于本体的个性化信息系统的设计思路和系统模型,并对该模型的主要模块进行了介绍,探讨了利用本体的领域知识和用户的本体模型实现信息检索的过程,最后对该模型进行的性能评价表明在查全率和查准率方面都有很大改善。更多还原

【Abstract】 Analyzing the problem that the traditional information retrieval system has some weak point, we put forward a ontology-based personalized information retrieval system design ideas and system model, and described the components of the model, introduced how to realize information retrieval with domain knowledge of ontology and user ontology profile. Finally, performance evaluation of the model shows the great improvement of the ratio of recall and precision as expected.更多还原