论文基于相关算法的分布式自适应习题库设计与实现.pdf

中国科技论文在线 基于相关算法的分布式自适应习题库设计 与实现 朱琳* 5 （北京邮电大学信息与通信工程学院，北京 100876） 摘要：目前大多数网上考试系统组卷方式单一，难以满足各种考试目的。本文在对题库系统 进行总体分析的基础上，给出了网上考试系统的设计目标和功能模型，并重点介绍了网上考 试系统的设计与实现，主要包括数据库设计、主要功能模块的设计与实现等。网上考试系统 的基础是一份合理科学的试卷（练习题），生成试卷的算法决定了试卷的质量，因此论文研 10 究并实现了一种基于改进向量空间模型的相关反馈算法的自适应练习题生成算法，测试结果 表明了算法的可行性和有效性。本文设计的网上考试系统具有通用性和良好的可扩展性、能 满足一定要求的组卷要求，并且有助于开展教学改革、推行教考分离。 关键词：在线考试；自适应；分布式；自动组卷；相关算法 中图分类号：TP311.13 15 Design and Implement of Adaptive Online-Distribution Test System Based on Relevance Feedback Algorithm ZHU Lin (School of Information and Communication Engineering, Beijing University of Posts and and 20 Telecommunications, Beijing 100876) Abstract: Most existing online testing systems only have little ways to generate a test paper, so they can not satisfy the requirements of the complex purpose of taking the test. In this paper, after the design objective and functional model are given, the design and implementation of the testing system are introduced in details, including the design of database, the design and implementation 25 of the main functional models,etc. The basic requirement of the online testing system is to generate reasonable and scientific test paper, whose quality is decided by the algorithm of generating test paper. Through the analysis of exist algorithm of generating test paper, an algorithms based on improved Relevance Feedback algorithm of Vector Space model is desi