Academic Analysis System Based On Decision Tree Classification Algorithm Design And Realization

21st century is the era of knowledge economy, but also all areas of society, especially comprehensive information age of education, education level and the effective share of digital information resources has become a symbol to measure the modernization of education country or region, also is the 21st century lifeline of education.With the popularity of digital campus and the application of a variety of teaching management system,there is a large amount of raw data, which is used to query statistics in the daily teaching of data management applications,not analysis a wealth of information hidden Resources. The data mining technology solve such problems, data mining can be carried out in the vastness of the data, statistics, analysis, synthesis, reasoning, and forecast, providing data for policy making and ancillary support. The current data mining technology has been widely used in business. Similarly, data mining can be conducted on campus combined with digital technology, it can get the information in various types of analysis, and extraction of hidden data information, also it can provide management decisions for the university and enhance the university's educational level.In this paper, we propose a performance analysis system for technical school of Dong Ying, analysis the feasibility of data mining technology in schools, and give specific implementation plans. In the implementation of the program, we based on the student achievement, and completed based the whole process of data mining:identification of targets and goals of data mining, data cleaning and preprocessing, data classification using ID3 algorithm, using decision tree algorithm to construct decision tree, generate rules, evaluation and analysis. with data mining results, through the analysis of student achievement data, we understand the different assessment methods which decide the merits of the main factors in student achievement, thus evaluate the effects of different assessment methods,provide test data for reform of examination and decision making for teaching reform in the future.