The study is the part of the National Natural Fund project: "Research on quantitative retrieval of the main factors of desertification and assessment of remote sensing information" (No. 30371192).
本研究是国家自然基金项目“荒漠化因子定量反演及评价遥感信息模型的研究”(项目编号：30371192)的部分内容。
Information Content retrieval technology introduces quantitative analysis method, and the retrieval process is also a process of quantitative analysis.
信息内容检索技术引入了定量分析手段，检索的过程也是定量分析的过程。
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.
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。
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