Research On User Cognition-based Knowledge Fusion Model Construction

In the era of big data,information overload has become a common problem.Users' cognitive burden is aggravated,and information acquisition cost is reduced,and knowledge acquisition efficiency is also decreasing.Users need more knowledge to satisfy individual needs than ever before,so as to reduce the pressure and burden brought by information overload.Knowledge Fusion is the work of analyzing and reorganizing knowledge units.It is the work of reorganization and reconstruction of knowledge.The traditional knowledge fusion practice is mainly from the point of view of resources and is more common in the time of limited resources and a single user demand.However,the users' sense of self awareness in the Web2.0 era,the number of User Generated Content(UGC)has been increasing rapidly,and the user behavior features are gradually expressed in various ways.The traditional knowledge fusion model is no longer applicable.Faced with this situation,this paper studies the related problems of user cognition and knowledge fusion,such as user cognitive features,user cognitive structure,knowledge fusion method and model,and so on.On this basis,this paper proposes a Knowledge Fusion Model based on User Cognition,and takes Netease Online Open Courses as an example to make an empirical study of the fusion results.The full text is divided into five parts,the main contents are as follows:The first chapter is the introduction,introducing the background and significance of the research,combing the status and practice of the research at home and abroad.At the same time,it explains the research ideas,research methods and the innovation of this article.The second chapter is the theoretical basis.The two important theories of this paper are introduced and analyzed:user cognition theory and knowledge fusion theory.This paper analyzes the connotation and extension of user cognition theory,analyzes the user cognitive features,user cognitive schema,user cognitive structure and user needs under cognitive background,as for the theory of knowledge fusion,this paper analyzes the concepts,historical evolution,model,method,strategy of knowledge fusion theory,the analysis of the logical thought is conduce to master the profound connotation of knowledge fusion.The third chapter constructs a knowledge fusion model based on user cognition from a theoretical point of view,and constructs a whole process from data acquisition to information ordering and integration,and then to automated fusion based on cluster analysis and knowledge service.On this basis,the key tasks of each level are given to sortation and explanation,and from the three angles of technology,law and management,we carry out the guarantee design for the implementation of the model.The fourth chapter is a case of knowledge fusion,which takes Netease Online Open Courses as an example.To realize the technique and strategy of the knowledge fusion model based on user cognition,grasp the representative data source,design the complete experimental process,construct the standard data set of the fusion results by fusion algorithm based on cluster analysis,conpare the fusion results with the artificial standard set,and prove the user cognition based on the empirical analysis method.The knowledge fusion model can solve the problems of information extraction,information screening and knowledge fusion?The fifth chapter is the concluding part,summarizing the whole text and looking forward to the future work.