智能IETM语义检索系统设计与实现

摘要

To improve the intelligent semantic retrieval method, a new intelligent semantic retrieval method is proposed based on Jena reasoner. Firstly, the three shortcoming of traditional retrieval method of IETM are pointed. Seconly, the merits and drawbacks of five semantic retrieval methods are compared, and the Jena reasoner is selected as the IETM semantic reasoner, and its basic theories are also given. Thirdly, the intelligent semantic retrieval method based on Jena reasoner is proposed, and its two steps are analyzed. The proposed method can overcome the semantic absence defect of the traditional abstract- based retrieval method, and promote the precision and recall.%通过对IETM智能化语义检索方法的探讨。提出了一种基于Jena推理的IETM智能化语义检索方法。分析了当前IETM系统检索方法存在的不足。提出了语义检索是实现IETM智能化的有效途径。详细阐述了Jena语义推理的基本原理。最后，设计了基于Jena推理的IETM智能化语义检索方法，该方法根据输入检索语义检索条件在IETM领域本体库中进行Jena推理获得语义扩展的检索结果：根据语义扩展后的检索结果在CSDB中进行检索，获得最终结果。所提方法较好地满足了IETM系统中海量领域知识的智能化检索和用户多样性需求的要求，强调了检索的查全率和查准率。有效地克服了传统的关键字检索模型存在的语义缺失问题。