本学位论文将图像检索技术运用于文档检索系统中，提出了一种针对图像内容的文档检索方法。
A method of documents retrieval by the image content was researched in this dissertation, and the image retrieval techniques was applied the to document retrieval system.
准确的文档语言模型估计对于改善语言模型检索系统的性能是非常重要的。
Exact estimation of the document language model is important to the performance of the language model based IR system.
在分词技术、索引技术、结构化查询语言技术的基础上，提出了一个基于XML文档数据库的信息检索系统，这一系统模型主要由分词模块、索引模块及查询模块组成。
This paper puts forward an information retrieval system based on XML documents database on the foundation of segmentation technology, index technology and structured query language technology.
常见信息检索系统的基础是系统中匹配的文档和查询效率。
Common basis for information retrieval systems is matching documents in the system and queries efficiently.
常见信息检索系统的基础是系统中匹配的文档和查询效率。
Common basis for information retrieval systems is matching documents in the system and queries efficiently.
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