Research On Constructing Discipline Knowledge Repository Based On Ontology

Sharing education resources is an effective way to improve the network quality of education and lower the cost of education.However,due to lack the uniform knowledge framework in the teaching system resources,all the learning resources are difficult to share and interoperate in various teaching system;Secondly,knowledge modeling in knowledge less considered from teaching theory perspective,affected the education of learning resources;thirdly,keyword-based knowledge information retrieval in teaching system,being very limited in revealing semantics and pragmatics,is difficult to satisfy the actual needs and the development of the Semantic Web requirements.Because of the shortage in teaching resources system,the paper solves the knowledge modeling of Discipline Knowledge Repository(DKR)from a new perspective to change the knowledge organization of DKR,and introduce Ontology to educational technology applications.Details are as follows:(1)Studying the application situation of sharing education resources system,we analyze the advantages of the introduction of Ontology to construct DKR.(2)Base on analyzing the relevant theories and technologies,we fuse constructivism theory,and use concept maps to achieve the concept of knowledge and its relationship to enhance the teaching effect of the Ontology-based DKR,and enhance the efficiency of building Ontology-Based DKR through the reuse of metadata.(3)Studying the deficiencies of the DKR,we design the disciplines based on the (?)y of DKR modeling method,and divide DKR into two parts:Concept Ontology (?)ources Ontology.(?)ng "distance education" as an example,we construct the Concept Ontology and Resources Ontology based on OWL DL.It facilitates the reusing and sharing of the resources.(5)We developed application examples,which focused on designing a prototype system of the resource management.And we also studied various key technologies which exist during the realization of the prototype system,such as Ontology Inference technology, JSP technology etc.(6)Through evaluating the system,we find DBK Ontology built with the fields ontology modeling methods can effectively reflect the thinking of teaching.In a certain extent,it solves the problem of the teaching resources sharing and interoperation.