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.
出处
《北京理工大学学报》
EI
CAS
CSCD
北大核心
2002年第1期68-71,共4页
Transactions of Beijing Institute of Technology
