摘要
在现实生活中查询对象既有确定性数据也有大量模糊性数据,现有传统查询技术已无法满足此要求。将模糊理论与数据库系统相结合,得到一种数据查询新技术。建立了模糊化查询命令格式,构造了模糊查询语句,应用于实例中,查询效果明确;并提出了一种更接近自然语言的语义距离计算方法,构筑了在模糊数据库中实现查询的理论框架。
In the realism living,the objects of query involve a great deal of fuzzy data besides accurate data. The traditional query is unable to satisfy the need. In this paper fuzzy theory and database system are combined, new data query technique is provided. The format of the fuzzy query command is set up;many fuzzy query sentences are constructed and applied in an instance.It is confirmed by the instance's running results that the query's effect is definite.A calculates formula for nature language is set up,which is closer to the meanings of the nature language. A theoretical frame is built for query in the fuzzy database.
出处
《计算机应用研究》
CSCD
北大核心
2003年第5期8-10,29,共4页
Application Research of Computers
