【摘要】 本文对逆文献频率加权标引和N元分析进行对比分析,同时引入统计学领域的条件概率和信息论中的信息熵这两个工具,针对文献信息的处理提出了基于N元分析与逆文献加权的标引方法,以期提高文献的标引质量,避免自然语言处理中的一些问题。更多还原

【Abstract】 Through the comparing of the Inverse Document Frequency Weight Method and the N-gram analysis,and using the contingent probability and the comentropy as the statistical tools,this article proposes one combined method of automatic indexing based on the Inverse Document Frequency Weight Method and the N-gram analysis.This method overcome some problems of natural language processing and advance the indexing quality.更多还原