知识表示中多色图的应用

为了让知识本体表示方法能同时描述概念和概念间关系的多种特性，在图论的基础上，借鉴已有研究成果，采用多色图理论实现了本体的形式化描述，通过图的多色性质反映概念、关系的多种特性；将属性与概念和关系分离，便于多色图知识表示方法描述能力的扩展，提高了方法的柔性；实现了基于多色图的本体并、交、差的基本运算。最后应用基于多色图的本体表示方法建立了钣金工艺本体片断的形式化描述模型，验证了方法的有效性。

Application of Polychromatic Graph in Knowledge Representation

Ontology is an effective approach for manufacture knowledge management, but it lacks a powerful method for knowledge expression. According to related papers, it proposes a representation model with polychromatic graph. This model can reflect multi characters of conceptions and/or relations of ontology, extend easily with separating attributes for conceptions and relations. It implements three basic Boolean operations to enhance the capability of the model based on polychromatic graph. A case of sheet metal process knowledge proves the effectiveness of presented approach.