制造业信息系统多源异构知识集成

Heterogeneous knowledge syntheses for manufacturing information systems

为了实现制造业信息系统中各类多源异构的数据、信息和知识层的集成,提出一个全新的可计算框架体系。通过定义一个应用领域的本体论,明确地定义其领域标准词汇和关系。同时,也形式化地定义一个对本体论具体状态进行详细说明的知识库,由此建立一个异构源的信息转化为通用的知识表示模型,解决知识集成过程中结构和语义两方面的异构问题。之后,应用资源描述框架模式(RDFS)作为信息和知识的核心转换技术,进行异构知识的转换和映射,实现异构知识集成。

To integrate a variety of heterogeneous sources in an E-Manufacturing environment, an innovative architecture was put forward to provide a computing framework for knowledge syntheses. A common knowledge representation (CKR) model was proposed to resolve both structural and semantic heterogeneity issues in performing heterogeneous knowledge synthesis. This model defined not only domain ontology but also domain standard glossary and their relationship. At the same time, a knowledge base was built to elaborate the status of ontology. A resource description framework schema (RDFS) was developed based on the defined domain ontology and used as the vehicle for data transformation. So information retrieved from each specific heterogeneous communication channel was transformed into knowledge conforming to CKR in RDFS. As a result, the consistent and current knowledge is retrieved according to decision-making demand.