Research On The Classification And Subject Tracking Of Security Incidents In Primary And Secondary Schools Based On Web

Primary and secondary school campus safety is the basis for carrying out educational activities.It is related to the harmony of the family and the social stability of the primary and middle school students.The campus safety has become a hot topic of concern in all circles of the society.Information technology can be used to analyze the changing trend of campus public security in primary and secondary schools.In this context,text classification,topic extraction and topic tracking can be used to analyze and statistics campus security incidents in primary and secondary schools.The main contents of this paper are as follows:(1)Research on data acquisition and data preprocessing technology of campus safety incidents in primary and secondary schools based on Web.The breadth priority strategy of the web crawler is used in the process of the data collection.It collects news event pages about campus safety of primary and secondary schools.Regular expressions is used for conduct web page preprocessing.At the same time,Chinese word segmentation technology is used for data preprocessing.(2)Study the classification and topic tracking algorithm of campus security events of the texts.The text classification algorithm of campus security event information is based on the similarity calculation of topic vocabulary.The classification of primary and secondary school security incidents can be used for topic extraction.Using the LDA model,the topic information is identified.Based on the subject set of various types of campus security incidents in primary and secondary schools,named entity recognition and related algorithms is used to extract information from event elements.At the same time,text topics for classified campus security events can be tracked.The trend of campus security incidents in primary and secondary schools can be analyzed.(3)A web-based prototype system for campus security events in primary and secondary schools is designed and implemented.It mainly includes classification module of campus security event text information,topic tracking module,topic extraction module.According to the analysis results of this study,the prototype system can get the trend of campus safety incidents in various primary and secondary schools,which is beneficial for the school security administrators to carry out the campus safety education.The prototype system can be used for statistical analysis of the collected campus security incidents and provided data support for campus managers.