Research On Construction And Application Of Scene-oriented MOOC Resource Ontology

Online education(MOOC)is the product of modern information technology and educational development.It provides quality educational resources for countless learners and greatly reduces the learning cost.However,with the development and construction of this platform,problems emerge in an endless stream,such as low retrieval efficiency,unreasonable knowledge block,and insufficient personalized service.In this context,it is feasible to introduce ontology concepts and methods and build a MOOC resource ontology to deal with these problems.Combining with the MOOC development present situation and requirements,design MOOC resource ontology construction process by data acquisition,data description,data organization,data application,the paper mainly discusses how to in case based on the resource user scenarios MOOC,construct a MOOC discipline knowledge,curriculum information these two resource ontology.Based on the scenario theory,this paper firstly analyzes the usage scenarios of MOOC resources,conducts data collection and ontology construction on the usage of users and user information,and then constructs the ontology model of the level of scenario ontology from the perspective of MOOC resource platform and the course itself.In constructing a MOOC subject knowledge ontology,this paper first to MOOC discipline knowledge content and structure characteristics are studied,clarify its problems in knowledge organization,collecting MOOC discipline knowledge of a lot of information,to extract the core concept of ontology classification,to define the relationship between concepts,choose a suitable method of building ontology,combined with other ontology construction conditions of MOOC discipline knowledge ontology construction.When constructing MOOC course resource ontology,this paper focuses on determining the ontology topic concept set within its scope,establishing concept hierarchy,defining attributes and attribute constraints,and then creating instantiation.The process of information ontology construction of MOOC courses is similar to that of subject knowledge ontology.However,this paper first classifies the information of MOOC courses,then obtains data from four aspects,namely,space-time,equipment and state,to extract core concepts,determine the relationship,and select the most suitable construction method to complete the creation and instantiation process.Finally,combined with the theory of ontology model,the paper points out the application of ontology model in semantic retrieval,knowledge navigation and personalized scenerecommendation.At the same time,it points out the defect that the data in ontology model is not rich enough,and enumerates the data interface of related models,so that the ontology model can be further expanded in practice.