Design And Implementation Of Search Engine For Teaching Applications Of Foundation Education

With the development of the Internet and the national attention to the reform of foundation teaching, how to effectively and reasonably using the information on the Internet to enrich the online and offline daily teaching life has become an active frontier research topic. Search engine is a more mature information retrieval tools for information gathering, information classification, sorting and display useful information. However, how to meet the information needs of basic education and build a class-based professional search engine has become the focus of research on information retrieval tools.Firstly, this thesis describes the background and significance of the study, including analyzing disadvantages of current mainstream type of search engines for teaching basic subjects, pointing out the main general-purpose of search engines as a result of commercial and audience targeting and other reasons and it is difficult to gather information to be beneficial for teaching, which led to relatively high redundancy of information retrieval. Teachers and students usually need a lot of secondary searching. Based on the above issues, the author carries out a feasibility study to clarify the need for the establishment of professional search engine.Secondly, based on the study on t related technologies and open source web crawler, the author build a wordbook of relevant network to collect a large number of subsystems and achieve relevant data. After classifying the data and the Chinese word segmentation, the author creates the indexing library according to a specific algorithm or strategy and carries on correlation ordering from high to low according to the requirements and feedbacks to the user at last.Finally, the thesis carries out the system evaluation and performance analysis, and verifies the feasibility and advantages of the system preliminarily.