面向CAM数控编程领域的知识图谱构建方法

Knowledge Graph Construction Method for CAM Numerical Control Programming Field

为提高CAM数控编程领域的知识表达、管理和挖掘能力,提出了CAM数控编程知识图谱构建方法。分析了CAM数控编程阶段的信息表达形式,构建了CAM信息模型;采用概念到关系、局部到整体的本体构建模式并引入语义规则,实现了知识图谱模式层的构建。以某船用柴油机企业历史CAM编程案例库为数据源,构建了特征操作信息单元模型库,采用本体映射的方式完成了知识图谱数据层的构建,并通过知识融合、知识推理等手段扩大了知识规模,提高了知识质量。最后,开发了CAM知识图谱Web平台,验证了所提方法的有效性。

In order to improve the ability of knowledge expression,management and mining in CAM numerial control programming field,a method to construct CAM numerial control programming knowledge graph was proposed.The information expression form of CAM numerial control programming stage was analyzed and the CAM information model was constructed.The ontology construction mode from concept to relation and from part to whole was adopted and semantic rules were introduced to realize the construction of knowledge graph pattern layer.Taking the historical CAM programming case base of a marine diesel engine enterprise as the data source,the feature-operation information unit model library was constructed,and the knowledge graph data layer was constructed by ontology mapping.By means of knowledge fusion and knowledge reasoning,the scale and quality of knowledge were enlarged and improved.Finally,a CAM knowledge graph Web platform was developed to verify the effectiveness of this method.