文本分类检索技术在工程中的应用  

Application of Text Classification Retrieval Technique in Engineering

作　　者：刘晓丽[1] 王涛[1] 苏鹏[1] 梁令 

机构地区：[1]中国电子科技集团公司第五十四研究所,河北石家庄050081 [2]河北天塔山建材有限责任公司,河北辛集052360

出　　处：《无线电工程》2008年第10期58-61,共4页Radio Engineering

摘　　要：根据工程项目中文本特点与用户业务需求,基于向量空间模型,结合示例检索与分类检索技术,设计与实现了文本分类检索系统,以面向对象中类图模型形式描述了系统的实现方法。为解决工程应用中出现的性能等问题,提出了各种改进优化方法,如采用特征提取将向量降维,减少存储空间,提高计算速度;采用分类检索缩小搜索范围,缩小检索时间;定时增量更新向量空间提高处理速度,最终使系统成功应用到了工程项目中。Based on the characteristics of text and user＇ s working requirement in engineering, a text classification retrieval system is designed and realized by combining example-based retrieval technique and classification retrieval technique based on vector space model. In this paper, realization of the system is described with an object-oriented class diagram. In order to solving the problems of efficiency and practicality rising in engineering application, several improved methods are adopted. For example, the method of feature extraction is used to reduce vector dimensions for decreasing memory and increasing compute speed. The classification retrieval technique is used to shrink search area for shortening search time. And the method of incrementally updating the vector space in time is used to increase processing speed. Finally, the system is successfully applied to project.

关 键 词：示例检索 向量空间模型 文本分类 分类检索 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]