Research On Cognitive Information Retrieval Model Based On The "Scarcity Theory"

With the development of Internet technology,the scale of the Internet has become increasingly larger and the structure is more complex than before.Now massive data has formed a message siege and the valuable information is blockaded.Under the environment of this,searching out these valuable information become more and more difficult for users,and ultimately,resulting in the problem of overloading the user information load.Even in the maze of cyberspace,the users will produce anxiety when they face the massive information.It is obviously not easy for people to find the information they need in an efficient and accurate way in the ocean of information.From the perspective of cognition,information retrieval is essentially a cognitive process,which is the matching process between user cognition and system default cognition.The research of information retrieval cognitive model has laid a theoretical foundation for the development of information retrieval system,so that the information retrieval system can be optimized continuously,to explore the potential information needs of users and improve the retrieval efficiency of the system.Based on the research of domestic and foreign literature,this paper analyzes the dynamic of user 's cognitive ability on the basis of the scarcity theory and learns the cognitive model of information retrieval based on scarcity theory.The model consists of three functional modules,namely,internal cognitive layer,trade-off decision-making layer and human-computer interaction layer.On the basis of the model construction,the author puts forward a series of problems to be solved in the process of implementation of the model,such as the information gap reverse mechanism,the optimization of the subject list,the optimization of the search type,the establishment of the user archives database and so on.Finally,the author makes an evaluation and analysis of the implementation effect of the information retrieval cognitive model based on the scarcity theory.It points out the difference between the model and other models,clarifies the specific problems that the model can solve,and finally it points out the key and difficult problems such as artificial intelligence,brain science,computer science and system simulation.