本文介绍了基于向量空间的常用距离的算法，并在概念语义空间的基础上，提出一种面向主题的距离和分类的算法。

This paper introduces a common distance algorithm based on vectorial space, and proposes novel distance and classification algorithms which orient the topic on the basis of concept-semanteme space.

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利用共现分析构建概念空间，实现语义检索，是当前信息组织和检索领域研究热点之一。

Using co-word analysis to construct concept space and realize semantic retrieval is one of the research hotspots in information organization and retrieval fields at present.

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文中从基于向量空间的反馈技术的分析入手，利用概念图的知识，提出了基于语义的相关反馈技术。

Firstly the paper analyzes the defect of technique of the VSM model. And then put forward one technique based - on semantic for relevance feedback, using the knowledge of conceptual graphs.

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文中从基于向量空间的反馈技术的分析入手，利用概念图的知识，提出了基于语义的相关反馈技术。

Firstly the paper analyzes the defect of technique of the VSM model. And then put forward one technique based - on semantic for relevance feedback, using the knowledge of conceptual graphs.

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