Design knowledge updating method based on similarity matching of ontology semantic block

Aiming at design knowledge updating problem in sustainable application of computer-aided innovative design system based on knowledge, the design knowledge updating method based on similarity matching of ontology semantic block is studied by synthetically considering the concept semantics and concept hierarchy structure. The ontology elements are extracted by interface functions of jena.ontology package in Jena. Matching concept pairs and to be matched concept pairs are acquired by synthetically considering ontology matching based on ontology element and ontology matching based on concept hierarchy structure. The rules are proposed to establish the concept semantic block. Word similarity from word sequence of concept semantic block is calculated with edit distance method. The weighted sum of word similarity is calculated to determine matching relationships between concept semantic blocks. Based on similarity matching of concept semantic block, design knowledge is updated by adding and removing functions of class, property and individual of jena.ontology package. The example of of company A and company B design knowledge updating application shows the correctness and validity of design knowledge updating method based on similarity matching of ontology semantic block. The proposed method increases the distinguish degree of concept pairs matching by enhancing the strong similarity matching with semantic neighbors similarity of concept semantic block, unchanging the poor similarity matching.