中文Web文档全文检索系统的设计及实现  

Design and Implementation of a Chinese Web Documents Full-Text Retrieval System

作　　者：曹元大[1] 贺海军[1] 涂哲明[1] 

机构地区：[1]北京理工大学计算机科学与工程系,北京100081

出　　处：《北京理工大学学报》2002年第1期68-71,共4页Transactions of Beijing Institute of Technology

摘　　要：为解决在检索某些词时发生漏检或错检 ,以及查全率和查准率不高的问题 ,研究字索引技术在中文 Web文档检索中的应用 .着重讨论字索引组织结构和检索方法 ,并引入了字节对齐的索引压缩方法 ,最后描述了一个中文 Web文档全文检索系统的结构和实现 .测试表明 ,该系统在响应时间和查准率方面性能均比较好 。To solve the problem that some results are skipped over or some errors occur during the process of searching some words and the recall and precision are low, the application of character based indexing technology to the search of Chinese Web documents is studied. The organization structure and retrieval algorithm of character based indexing are discussed in detail. Byte aligned compression method is proposed. The structure and implementation of the entire system are described at last. This system is proved to have good response time and precision and be a practical one by tests.

关 键 词：全文检索 WEB文档 字索引 压缩算法 索引库 中文检索系统 系统设计 

分 类 号：TP391.3[自动化与计算机技术—计算机应用技术] G354.45[自动化与计算机技术—计算机科学与技术]