面向Internet的模具知识本体描述方法

Internet-oriented description method of mold ontology

通过对Internet上的模具知识特点的分析,提出了一种基于模具本体的语义标注方法,对Internet上的模具知识进行描述,并结合实例对该方法进行了说明。该方法使用基于模具本体的向量空间模型(VSM)方法,将从页面中提取的特征词,用领域本体进行理解、扩充,然后基于改进后的TFIDF算法,求出扩充后每个特征词的权值。通过这种方法对网页文档进行语义标注后,可以把文档隐含语义信息显式地表现出来,为模具知识搜索引擎的设计提供了基础。

According to the analysis of the characteristics of mold knowledge on the Internet, a semantic annotation method based on mold ontology was proposed to describe the mold knowledge on the Internet, with a case study combined with mold domain ontology. Based on the mold ontology Vector Space Model （VSM）, this method extracted feature words from the Web pages, interpreted and expanded them, and then calculated the weighted value of each expanded feature word by improved TFIDF algorithm. This method can represent semantic information of a document, and as a result will provide the basis for the design of search engines for mold knowledge.