【作者】 王爽；

【导师】 张晓莹；

【作者基本信息】 北京邮电大学 ， 电子科学与技术， 2015， 硕士

【摘要】 随着信息化时代的到来,教育信息化也在大力建设中。专业作为高校人才培养的载体,是高校提高教学质量的立足点,它的信息化建设显得迫切而重要。本课题以电子信息科学与技术专业为例,介绍专业信息化建设目标：以师资建设为基础,以课程与教学资源建设为核心,以专业主页为载体和工具。在专业主页建设中,存在以下几个问题,专业领域资源形式多样,包括结构化和非结构化的数据,数据内部信息无法交流；专业课程内部很多学习规则、经验方法缺少归纳、总结,学生无法利用这些知识；专业主页不应仅是一个资源呈现、缺少交互的平台,没有用户参与、互动及反馈,不利于专业主页知识体系的完善、发展,同时专业主页中的不同用户的兴趣、关注点不一样,需要系统为不同用户提供个性化的服务。本文根据专业主页建设中遇到的问题,进行研究。研究点主要分为以下三点,第一,设计了基于语义的专业知识体系的构建方案,并在此基础上设计实现搜索与推荐系统；第二,设计一套交互式学习模型,并探索其在专业主页中的应用,完善专业课程知识体系的构建,实现个性化的推荐。第三,基于以上两点的研究,设计并实现具有语义推荐功能的交互式专业主页系统。第一部分,基于语义的专业知识体系构建及搜索推荐机制的研究。我们利用基于语义的信息整合理论及其相关技术,建立了一套基于语义信息整合的专业知识体系模型,通过本体构建,包括资源元数据本体、专业资源内容本体和专业学科辅助学习本体,实现对专业内资源、知识体系的整合,以及对课程学习中学习规则、经验的归纳、总结。同时,在专业知识体系的构建基础上,设计语义检索模型,实现对知识概念及其之间关系进行语义层面的搜索。本课题使用Jena推理机,设计一套合理的推理规则,实现专业主页中资源整合,并能为用户提供专业知识推荐。第二部分,专业交互式学习模型研究。本课题主要研究交互式学习模型中的交互式策略及交互策略在专业主页中的应用。本课题设计了被动式交互学习及主动式交互学习两种策略。被动式交互学习是通过系统获取用户日志的方式,主动记录用户的对专业主页的使用及学习情况；主动式交互策略我们设计了一套用户文字输入的方式,主动提供自己对专业知识学习的认识。系统通过这两种策略获取用户个性化的学习需求,记录用户的知识点的学习目标、学习轨迹、学习完成情况等信息,并通过分析这些信息,完善之前的专业知识体系构建,并可以提供更个性化的推荐等。实现了专业主页的交互性。第三部分,在前期利用基于语义信息整合理论构建专业知识体系和交互式学习模型设计的基础之上,进行具有语义搜索推荐功能的交互式专业主页系统的设计,包括系统需求分析、系统功能设计、数据库设计和页面原型设计,并采用MVC模型中Spring框架,实现一个具有语义搜索功能和便于交互的专业主页系统。更多还原

【Abstract】 With the advent of the information age, education, information is also vigorously constructing. Information technology is urgent and important for the professional which is the carrier of college personnel training and the standpoint of improving the quality of the university teaching.The issue takes electronic information science and technology for example to descible the goals of professional information technologyr:taking the implementing of the teaching project as the foundation,taking the curriculum and teaching resources construction as the core,taking the proffessional home page as the carrier and tool.There are some problems in professional home page:resources in the professional fields are so varied, including structured and unstructured data,that there is no exchange between these data;many learning rules and mothods in the coueses are lack of summary,that students can’t take advantage of these knowlege. Professional home page should not be just a platform which just show resources but is lock of Interactivity, and it isn’t good for the completing and development of knowledge system in the proffessional home page.At the same time,different usrs in the proffessional home page have so different interests and concerns that need system offer personalized service.This article did research according to the problem encountered in the professional home building.Research points divided into the following three points the first,designing the knowledge-based semantic system,and on the basis,designing and implementing the construction scheme of semantic-based professional knowledge and implementing the searth recommendation system;the second,design a model of interactive learning,and its complying in the proffessional home page,completing the building of proffessional knowledge system;the third.basing on the above two points,designing and implementating interactive professional home system with semantic search recommentdation function.The first part,the study of search recommendation mechanism basing on knowledge-based semantic.We use semantc-based information integration theory and related technologies to establish a knowledge system model based on semantic information integration.By ontologe construction,including resource metadata ontology、professional resources content ontology and professional disciplines assisted ontology.Integrate within the professional resources, knowledge systems,as well as courses in learning the rules of induction experience, summary.Meanwhile, in the construction of the system on the basis of expertise in the design the semantic retrieval model realize the semantic search for the relationship between concepts of knowledge.The topic designed a reasonable inference rules to achieve the integration of resources in the professional home page,and can provide users with professional knowledge recommended.The second part,the study of professional interactive learning model.The main study of the topic is the interactive strategies in the interactive learning model and the apply in the professional homepage.The paper designed two strategies including passive and active interactive learning.Passive interactive learning is getting log,taking user’s homepage and professional learning;we have designed a set of user text input mode providing initiatively their understanding of professional knowledge learning in the active interactive learning. Thro ugh these two strategies system obtained user’s individual learning needs, record ing user’s learning objectives、learning track、learning completion information,and by analyzing the information improving the constrution of the professional knowledge and can provide more personalized recommendations,etc.Achieve a professional intetactive homepage.The third,design the professional homepage with semantic search recommendation function including system requirements analysis,system functional design,database design and page design in the early base of semantic information integration theory-building and interactive learning system.Fianlly achieve interactive professional home system with semantic search recommendation function using the spring framework of MVC model.更多还原