Researches of Chinese full-text search technologies based on word indexing is related to many fields.
基于词索引的中文全文检索的研究是一个涉及到多个领域的综合性课题。
参考来源 - 基于词索引的中文全文检索关键技术及其发展方向·2,447,543篇论文数据，部分数据来源于NoteExpress
自动抽词标引除编制题内关键词索引外，至今没有突破性进展，主要是检准率太低。
Except for keyword - in - context index, there is no breakthrough made in automatic derived indexing today due to low precision ratio of retrieval.
本文从定量方面就汉字全文数据库的单汉字、词索引两种机制在空间、时间、检索效率等方面进行比较分析。
A quantitative study for two kinds of indexing mechanism of the Chinese full-text database is given, based on the quantitative analysis of capacity, time, retrieval efficiency.
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