多课程试题库软件系统的研究与实现

【作者】 翁业林；

【导师】 李千目； 高海侠；

【作者基本信息】 南京理工大学 ， 计算机技术， 2010， 硕士

【摘要】 随着网络教学的广泛应用,考试作为检查教学质量和学生能力的重要手段,试题库作为重要的教育教学资源,它的作用越来越重要。现代高等教育要求建立具有很高查询效率的试题库,能够高效、方便、快捷地出题,自动生成试卷,逐步形成丰富完善的试题库,使试卷管理工作更科学有效。本文对试题库系统的背景、概念、理论和技术进行概述,比较分析了己经存在的各种试题库系统,并在此基础上提出了实用性、智能化、网络化的新特点,从而设计出了一种基于自适应技术的多课程试题库软件系统。这种自适应考试系统的算法是建立在项目反应理论(IRT)上,IRT给出了评判考生答题结果的数学公式,提供了应试者正确回答一个项目的概率,并能对被试能力值、项目参数进行有效的估计。将题库系统与自适应技术相结合,可使考生有机会在与自己水平相符的试题中真正体现自己的能力与水平,这样就避免了由于试题太难或太易,考生无法发挥自己真实水平的矛盾。接着对本试题库所采用的支撑技术和关键技术进行了研究,最后从试题库系统的需求分析入手,详细描述了这种新型的的基于自适应的网上试题库系统的设计与实现方案,对试题库系统实现过程中组卷策略、抽题算法和系统安全技术进行了详细地讨论。更多还原

【Abstract】 With the wide application of network teaching, exam as check teaching quality and students’ ability, as an important means of item bank education teaching resources of important, it plays an increasingly important role. Modern higher education requirement to establish high query efficiency test-problem library, can efficient, convenient, fast prudently, automatically generating papers, and gradually form rich and perfect test-problem library, make examination paper management work more scientific and effective.This paper database system of the background, concept, the theory and technology are summarized, compares and analyses f through various existing database system, and proposed in this foundation the practicability, intelligent, networked new characteristics, thus designed based on adaptive technology curriculum examination software systems. More than This kind of adaptive examination system algorithm is based on the item response theory IRT), (IRT gives judge examinee answer results of mathematical formula, provides the candidate a project of probability correct answers, and can administer ability value, project parameters effectively estimate. Will test system combined with adaptive technology, can make the examinee has opportunity to self levels of exams in really reflect their own ability and the level, thus avoiding the because of the paper was or too easy, examinee can’t play to their true level of conflict.Then this test-system adoption of supporting technology and the key technologies, finally from the database system needs analysis, a detailed description of this kind of based on adaptive online database system design and implementation of the scheme for the database system to achieve process strategies of grouping, pulls topic algorithms and system security technology are discussed in detail.更多还原