The Design And Implementation Of The Full-text Retrieval System For Middle School Liberal Arts Textbooks

With the advent of the information age and rapidly development of information technology,learning resources are not only constraint by paper materials.Transforming a part of learning resources to digital materials is the trend of modern education.It is worth thinking about how to find out a method to help teachers and students to get the information they need from a large scale of data.Full text retrieval creates an inverted index which is formed by each word in the documents,and records the frequency and position of each word in the documents.The inverted index is retrieved at the time of query and full text retrieval system is built up by full text retrieval technology.Therefore,it is meaningful to implement a system that focus on education area.This graduation project is to use Elastic Search which is a search engine based on Lucene to implement the full text retrieval system of middle school's Arts text books.The main work of this paper is as follows:(1)Collect and sort out the resources of arts textbooks in Middle Schools;(2)This paper analyzes the related technology of full text retrieval,and analyzes the formula which calculates the similarity value.This paper provides the conditional retrieval,including full text retrieval,compound retrieval,author retrieval,subject retrieval,grade retrieval,title retrieval;(3)This graduation project uses Elastic Search to store the texts which have been collected.These texts are segmented by IK analyzer,and are indexed by ES.The retrieval module is built on the MVC framework.(4)The front-end of this system is based on JSP,which provides users the interface to query the information.The web pages of the program include search page,result list page and detailed information page.In the back-end of the system,we can highlight the search results in the web pages.This graduation project aims to help students and teachers to have an overview of the texts which related to the keywords which users input,helping users to find contents which they are interested in.This graduation project will help users to improve retrieval efficiency,learn relevant knowledge.In the end,the teaching quality can be promoted.