Research On The Design And Application Of Network Learning Resource Aggregation Model Based On Knowledge Element

In the context of the era of large education data,China's education information in the process of deepening to build a good support platform and infrastructure for the Internet based on the various types of new education model of the germination and rapid development of the appropriate soil.Network learning resources quickly accumulate and spread on the Internet,with a large amount of information,various forms,fast update and other advantages,but also there are too long learning resources,organizational confusion,lack of polymerization and other issues.This paper proposes a model of network learning resource aggregation based on knowledge element,and applies the model to the online learning platform.The corresponding knowledge map system is designed to present the learning resources in a stereoscopic,refined and visualized way.,To avoid learners due to the distribution of learning resources scattered and bear the additional cognitive load.The main contents of this paper are as follows:First,the current research situation of network learning resource aggregation and knowledge element is analyzed,and the breakthrough point of this paper is found,that is,the aggregation of network learning resources based on knowledge element.Based on this,the application of knowledge element in the network learning resource aggregation is studied,and the theoretical basis of introducing the concept of knowledge element in resource aggregation is found out.Secondly,through the analysis of the existing network resource description standard,a model of network learning resource characterization based on knowledge element is constructed.In the resource model,the network learning resource has five attributes of name,format,source,keyword and association knowledge,and the resource instance is described by RDF/XML syntax.Thirdly,based on the three-layer construction method of knowledge base library,a multi-dimensional,fine and three-dimensional network learning resource aggregation model is proposed based on the network learning resource characterization model.In the aggregation model,the network learning resources form an organic whole through the relationship between the knowledge elements,breaking the boundary between the content of the subject knowledge and promoting the discovery and innovation of the knowledge.Fourthly,the network learning resource aggregation model is applied to the knowledge map system design of online learning platform.And points out the application characteristics of the system in knowledge visualization,knowledge retrieval and knowledge recommendation.In this paper,we construct the aggregation model of network learning resources based on knowledge element,and try to provide theoretical guidance for the description and aggregation of network learning resources.The application of the network learning resource aggregation model is applied to the online learning platform.The knowledge map is used to organize the knowledge content of the web-based curriculum.It provides efficient knowledge navigation and retrieval services for learners in the information environment,and better supports the learner's Personalized learning,lifelong learning business,while the knowledge map design also has a certain reference value.