模糊信息检索技术及其在FOXBASE中的应用

FUZZY MESSAGE RETRIEVAL TECHNIQUE AND ITS APPLICATION IN FOXBASE

模糊信息检索,是数据库管理信息系统和情报检索系统中经常遇到的问题。本文讨论了完全确定信息和模糊信息检索的一般概念和特点,给出了FOXBASE数据库系统中模糊信息检索的一般方法:AT检索法和＄检索法,并详细阐述了FOXBASE中各种模糊条件下,模糊信息检索的具体实现方法。对于中文信息模糊检索,重点论述和解决了目标字段错位问题,并给出了主要程序流程,使FOXBASE的模糊信息检索技术得以补充和完善。

Fuzzy message retrieval is used by data base management system and information retrieval system frequently. In this paper,common concept and speciality of complete definite message and fuzzy message retrieval are discussed. AT retrieval method and $ retrieval method are employed to process fuzzy message retrieval in FOXBASE system. Under all kinds of fuzzy conditions,fuzzy message retrieval is implemented really. Object field skew is discussed and processed for fuzzy retrieval of Chinese message,and chief program structure is given,which perfects fuzzy message retrieval technique.