智能教学系统中知识表示模型的研究与设计

研究了智能教学系统功能与结构。分析了知识库模型在智能教学系统中的重要地位;通过对知识库中的教学内容与教学规则两类知识的分析和对超媒体知识表示的研究,构建了一个基于层次结构的超媒体网络模型,并在知识网络图中节点里嵌入教学规则,以实现教学内容的动态组织、呈现和教学过程中的自适应导航。该模型为教学系统的决策与分析提供了智能的辅助手段。     

智能超媒体网络教学系统研究

"智能超媒体网络教学系统"是使用快速自然语言处理系统、概念提取和排序、个性化信息归档、管理和标签管理等新一代网络和人工智能技术的教学系统。本文主要讨论在向大学本科学生提供紧跟国际前沿技术发展的"智能超媒体网络教学系统"(工程实训和毕业设计平台)的基础上,创造一种全新的课程教学模式。该项目研究为西安交通大学城市学院第一轮科学研究课题,已取得阶段性研究成果并开始实际应用。     

贝叶斯网络在自适应教育超媒体中的应用

自适应教育超媒体系统中,学生模型的不确定性因素的处理是非常重要的问题。文章讨论了在笔者所设计和实现的自适应教育超媒体系统中,应用Bayes网络处理学生模型中非确定因素的方法。     

自适应学习模型在智能教学系统中的应用研究

在分析自适应学习内涵的基础上,深入地研究了自适应学习模型的结构和功能。探讨了自适应学习模型对智能教学系统实现教学内容动态呈现和智能导航两个方面的理论支持。最后,指出自适应学习模型的分析和研究是构建智能网络教学系统的关键。     

超媒体计算机教学系统的设计

本文首先分析了当前超媒体教学系统的不足之处，并在此基础上给出了超媒体计算机辅助教学系统ＨＩＣＡＩ的设计思想 ，体系结构及各组成模块的功能。     

基于Web的智能教学系统的研究与实现

基于Web的智能教学系统综合传统的ITS系统优势,同时又结合Web的特点,系统具有智能性,能够智能地引导学生学习。它是以认知科学为理论基础,综合利用人工智能技术、教育心理学、计算机科学等多门学科的成果而形成的一种对学生实施有效教学的技术。提出了一种基于Web的智能教学系统模型,给出了智能教学系统的知识库的设计、学生模型的构建方法及教学策略的设计,并探讨了学生模型的学习评价,最后对实现系统的关键技术进行了研究。     

基于Web的智能教学系统的研究与实现

基于Web的智能教学系统综合传统的ITS系统优势,同时又结合Web的特点,系统具有智能性,能够智能地引导学生学习.它是以认知科学为理论基础,综合利用人工智能技术、教育心理学、计算机科学等多门学科的成果而形成的一种对学生实施有效教学的技术.提出了一种基于Web的智能教学系统模型,给出了智能教学系统的知识库的设计、学生模型的构建方法及教学策略的设计,并探讨了学生模型的学习评价,最后对实现系统的关键技术进行了研究.     

计算机超媒体教学系统设计

本文介绍了超媒体结构及其特点,超媒体应用于教学系统设计存在的优缺点比较,并对超媒体教学系统的设计策略进行了研究搜索,以期对超媒体教学系统的开发工作者有所启发。     

适应性超媒体系统中用户建模的研究

传统的超媒体系统采用同样的导航策略呈现给所有的用户相同的学习内容。适应性超媒体系统根据用户的不同特点和需要为每个用户建立用户模型,采用个性化的呈现方式。本文综合考虑用户的知识状态和认知风格。并将人工智能领域的知识表示方法引入用户建模中,增强了系统的适应性。作为智能型教学系统。可以帮助教师实施基于网络的课程。推荐给学生恰当的学习材料。从而提高学生的学习成绩。     

基于Web的《计算机文化基础》智学教学研究浅探

传统的计算机辅助教学(CAI)模式忽视学生的主体性和差异性,不能根据学生的各自特点实施因材施教。而智能计算机辅助教学系统(ICAI)坚持"以人为本、学生第一"的教育原则,尊重学生的个体差异性,实现因人施教、自适应性教学,充分发挥学生的主体作用。本文针对《计算机文化基础》教学中存在的不足,结合智能教学系统特点,研究并给出了一种基于Web的《计算机文化基础》的智能教学系统构造原型。     

Improving Student Performance Using Self-Assessment Tests

Testing is the most generic and perhaps most widely used mechanism for student assessment. Most tests are based on the classical test theory, which says that a student's score is the sum of the scores obtained in all questions plus some kind of error. The most relevant is that the student test result depends heavily on the individual's learning preferences or abilities and also on the actual test's format. According to this theory, tests aren't necessarily useful in intelligent educational systems, which require accurately obtaining the student's knowledge state to guide the learning process. Yet the Web has created a new generation of intelligent systems-adaptive hypermedia systems which offer new types of instructional interaction. Educational AHSs adapt the learning process on the basis of the student's learning preferences, knowledge, and availability. One such Web-based tool is Siette (the system of intelligent evaluation using rests), which infers student knowledge using adaptive testing.     

Methods and techniques of adaptive hypermedia

Adaptive hypermedia is a new direction of research within the area of adaptive and user model-based interfaces. Adaptive hypermedia (AH) systems build a model of the individual user and apply it for adaptation to that user, for example, to adapt the content of a hypermedia page to the user's knowledge and goals, or to suggest the most relevant links to follow. AH systems are used now in several application areas where the hyperspace is reasonably large and where a hypermedia application is expected to be used by individuals with different goals, knowledge and backgrounds. This paper is a review of existing work on adaptive hypermedia. The paper is centered around a set of identified methods and techniques of AH. It introduces several dimensions of classification of AH systems, methods and techniques and describes the most important of them.     

Design of adaptive hypermedia learning systems: A cognitive style approach

In the past decade, a number of adaptive hypermedia learning systems have been developed. However, most of these systems tailor presentation content and navigational support solely according to students’ prior knowledge. On the other hand, previous research suggested that cognitive styles significantly affect student learning because they refer to how learners process and organize information. To this end, the study presented in this paper developed an adaptive hypermedia learning system tailored to students’ cognitive styles, with an emphasis on Pask’s Holist–Serialist dimension. How students react to this adaptive hypermedia learning system, including both learning performance and perceptions, was examined in this study. Forty-four undergraduate and postgraduate students participated in the study. The findings indicated that, in general, adapting to cognitive styles improves student learning. The results also showed that the adaptive hypermedia learning system have more effects on students’ perceptions than performance. The implications of these results for the design of adaptive hypermedia learning systems are discussed.     

基于ToolBook的小儿疾病诊断智能超媒体系统

为了探索多媒体技术与专家系统的结合，把多媒体信息引入专家系统，本文用多媒体著作工具ToolBook外接数据库开了小儿疾病智能超媒体系统，并研究了关系数据库与知识库的对应关系以及Rough set理论在本系统的应用，阐述了实现该系统的关键技术。     

Toward intelligent styling for digital museum exhibitions: modularization framework for aesthetic hypermedia presentations

In current Web-based hypermedia environments, constructing and maintaining a large-scale interactive aesthetic hypermedia exhibition is a difficult task. In particular, the shaping of presentation styles requires tedious multimedia composing and is indeed extremely laborious. As our first step toward developing an intelligent styling system for digital museum exhibitions, this paper proposes a fine-grained modularization framework that decomposes the styling of a typical hypermedia presentation into fine-grained style modules (FGSM). A hypermedia document based on a monomodal media handler and a digital museum exhibition management framework have been designed to realize the concept of FGSM. We have implemented a Web-based authoring system that allows content providers to efficiently construct mediacentric, interactive, aesthetic hypermedia Web sites. In the future, relevant optimization and constraint-solving techniques will be exploited to achieve the goal of intelligent styling for digital museum exhibitions .     

SKY：一个面向方案设计的超媒体智能开发环境

为了有效地支持方案设计，一个智能开发工具应具有哪些特征呢？作者认为将设计过程支持与设计信息管理集成在同一环境下可创造一个人机一体化的方案设计环境，本文介绍了一个作者开放的用于支持方案设计的智能设计开发环境ＳＫＹ《ＳＫＹ同时具有智能开发工具和超媒体系统的特点。文中给出了ＳＫＹ的总体结构，并且对ＳＫＹ的关键技术；面向对象知识表示，支持设计过程、问题求解策略和超媒体设计信息管理作出详细的讨论。最后介绍了     

基于Petri网的智能超媒体模型

智能超媒体是多媒体技术与专家系统的理想结合，Petri是描述系统行为的形式化工具。该文利用有色Petri网、扩展OCPN模型，采用立体层次结构，提出了一种基于Petri网的智能超媒体模型。该模型能较好地描述专家系统中规则的推理、多媒体中各种媒体的链接与同步以及与用户的交互和表现问题。     

Towards new forms of knowledge communication: the adaptive dimension of a web-based learning environment

Adaptive Educational Hypermedia Systems aim to increase the functionality of hypermedia by making it personalised to individual learners. The adaptive dimension of these systems mainly supports knowledge communication between the system and the learner by adapting the content or the appearance of hypermedia to the knowledge level, goals and other characteristics of each learner. The main objectives are to protect learners from cognitive overload and disorientation by supporting them to find the most relevant content and path in the hyperspace. In the approach presented in this paper, learners' knowledge level and individual traits are used as valuable information to represent learners' current state and personalise the educational system accordingly, in order to facilitate learners to achieve their personal learning goals and objectives. Learners' knowledge level is approached through a qualitative model of the level of performance that learners exhibit with respect to the concepts they study and is used to adapt the lesson contents and the navigation support. Learners' individual traits and especially their learning style represent the way learners perceive and process information, and are exploited to adapt the presentation of the educational material of a lesson. The proposed approach has been implemented through various adaptation technologies and incorporated into a prototype hypermedia system. Finally, a pilot study has been conducted to investigate system's educational effectiveness.