摘要： 针对中文全文检索字表法检索索引的创建,提出了快速的建立方法,并根据中文文本的特点,提出了有效的索引压缩方法。实验表明,使用虚拟内存技术可以大大节省索引的建立时间;采用字节对齐的索引压缩技术,不但可以有效地减少索引占用的磁盘空间,而且可以加快检索时间,索引的空间和时间效率都得以提高。

关键词: 全文检索, 字索引, 虚拟内存, 压缩

Abstract: This paper provides fast index creation method for character-based Chinese full-text retrieval system and efficient index compression method according to the character of Chinese documents. The test results show that the index creation time can be saved greatly by using virtual memory and the byte aligned compression method can not only reduce the disk space needed by index files, but also speed the search process. The index efficiency of space and time is improved by these methods.

中图分类号: 

• TP391.3