关键词: 多层本体, 顶层本体, 异构信息, 语义关系, 知识表示

Abstract:

As complex information system involving knowledge more and more widely, in the face of multi-field heterogeneous knowledge sharing and refactoring, the knowledge representation model based on traditional domain ontology and based on keywords shows the lack of effective organization and accurate retrieval for heterogeneous information. For this problem, the paper presents a universal model for knowledge representation based on multi-layer domain ontology. Referring to the upper semantic knowledge of the upper-ontology, the knowledge ontology of various areas is integrated. Then, the paper analyzes the construction process of each layer in detail. In the perspective of the single domain knowledge and multiple domain knowledge respectively, simulation experiments verify the effectiveness of universal model for knowledge representation based on multi-layer domain ontology through contrastive analysis with knowledge representation model based on traditional domain ontology and based on keywords.

Key words: multi-layer ontology, upper-ontology, heterogeneous information, semantic relation, knowledge representation