Decision Tree Technology And Its Application In University Employment Management Information System

With the deepening of the reform of higher education, the scale of college enrollment expansion and the increase of the number of students, the employment management of college graduates to bring more and more pressure. In order to improve the employment rate of graduates and the quality of employment, it is necessary to graduate information, employment and non employment information, recruitment units in the demand for effective management, student employment data for comprehensive analysis of using data mining technology of data mining in employment and employment recommendation, provide the basis for the employment guidance work of obtain employment of school leaders and decision makers. Under this background, the paper designs and implements an employment management information system for higher vocational colleges, and makes use of the improved decision tree technology to carry out employment recommendation.First of all, this paper analyzes the current situation of the employment management of the domestic and foreign graduates, discusses the application of data mining technology in the university employment management.Then, the paper expounds the classification technology of data mining, discusses the C4.5 decision tree technology, points out the shortcomings of the technology and puts forward the improved algorithm of C4.5, and improves the efficiency of C4.5 algorithm.Then, the paper analyzes the demand of the information system of employment management in higher vocational colleges, expounds the work flow of employment management, describes the construction target of the system, designs the function structure of the system, and designs the database system, and describes the logical structure of the database and the main database tables.At the end of this paper, on the basis of demand analysis and the system design, the realization of the employment management information system, describes the system development environment and database connection method, the implementation process of the main employment management functions of the mining gives the newsletter of employment, employment guidance and planning, information of graduates, employment information, employment information, employment situation analysis, the employment data mining, the realization of the employment information decision tree, provide guidance and recommendation for employment of students.The employment management system has been successfully implemented and has achieved good results. Improve the efficiency of employment management, saving time and cost. Provide a strong basis for the employment guidance of the school's career guidance and decision makers. The successful application of the college through the employment management system provides a good guarantee for the effectiveness of the work management.