An ontology-based educational resource model construction method

Abstract

The invention discloses an ontology-based education resource model construction method, which comprises the following steps: (1) extracting education resource terms and concepts, analyzing and extracting concept words from each file in a corpus by using a statistical method; (2) determining the hierarchical relationship between concepts, and using the hierarchical clustering algorithm to calculatethe similarity between concepts to form a hierarchical clustering; (3) defining the attribute and attribute relation of the concept, and establishing the semantic annotation and semantic relation ofthe scattered educational resources on the network; (4) creating an instance of educational resources, filling the ontology with the instance, and establishing the logical knowledge base. The invention adopts the uncertainty of the information entropy filter concept and utilizes the hierarchical clustering algorithm to determine the hierarchical relationship between concepts, clearly represents the main concepts, terms, attributes and interrelationships in the field of education, and formally describes the attributes of the activities in the field of education, which improves the learning level of users, knowledge updating, technology development and so on.

Description

technical field [0001] The invention relates to the field of educational resources, in particular to an ontology-based educational resource model construction method. Background technique [0002] In recent years, online education has been widely concerned. The basis and core of online education is to establish a professional educational resource ontology library. However, various educational resources on the Web currently lack consistent standards and cannot be used universally and shared. At the same time, the relationship between resources Lack of association between semantics, services such as intelligent retrieval between resources cannot be performed. This also makes it difficult for learners to choose appropriate resources, and the content of resources does not meet their own requirements. In recent years, ontology (Ontology) has attracted everyone's attention in the information field. As a conceptual model that effectively represents knowledge levels and semantics,...

AI Technical Summary

Problems solved by technology

Due to the complexity of Chinese knowledge, at present, manual intervention is more or less required in all aspects of building ontology to improve the accuracy of ontology, and it is still difficult to achieve complete automation that is completely processed by machines.

Although many researchers have proposed related computer-involved construction methods, due to the particularity of Chinese syntax, there are still some problems in these methods, and there is still a lot of room for improvement.

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