Semantic association is defined as the representation of rich knowledge about binary relation in semantic data model.
语义关联是语义数据模型中实体之间二维关系的知识表示形式。
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.
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。
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