中文词表检索技术研究

Research on Retrieval Technique of Electronic Thesaurus

词表检索技术是中文信息处理中的基础性工作,本文在分析现有技术优缺点的基础上,对基于链地址法的中文词表哈希函数的设计作了深入分析,提出了评价不同的哈希函数的性能指标,并给出了这些性能指标在理论上的期望值。以这些性能指标为根据,本文给出了一些具体的中文词表哈希函数。实践表明,这些函数有较高的效率。

Thesaurus retrieval is fundamental in Chinese information processing. After discussing the current technique, this paper made a deep analysis to the design of Chinese thesaurus Hash function based on chain address conflict dissolving method, and several criteria, as well as the theoretic expectation of these criteria, were proposed to evaluate different Hash functions, According these values, some experimental Hash functions were proposed which had high efficiency in our test.