摘要
研究了模糊知识的表示方法，提出了一种表示模糊知识的模糊数据模型，利用属性加权模糊值来表示模糊性数据。通过定义在元组上的隶属函数反映信息的可信度，对通常意义下的关系代数进行了扩展，每一元组都附一属性函数，定义了模糊属性的含义，用元组间的语义距离表示模糊对象和实体间的相似度，并对该意义下的关系操作进行了相应的研究和讨论。
A new fuzzy data model method has been gaven after studying the fuzzy knowledge representation. This method describes fuzzy data with fuzzy relation of attribute weight. By describing trusty degree of information through membership function defined on the tuple, they broaden relation algebra of general meaning, add an attribute function to every tuple, define meaning of fuzzy attribute, express similar degree in the interval of fuzzy object and entity with semanteme distance in the interval of tuple, and also studys the fuzzy relation operating.
出处
《山东建材学院学报》
1999年第1期35-37,共3页
Journal of Shandong Institute of Building Materials
基金
机械工业部自然科学基金
