共查询到18条相似文献，搜索用时 156 毫秒
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林豪慧 《大学图书情报学刊》2006,24(5):68-71,7
文章从数字化时代信息检索课的教学目标、教学资源、学生自主学习、学生协作学习和教师协作活动几个方面,论述了如何构建自主学习与协作学习相结合的信息检索课多元教学模式. 相似文献
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数字化文献信息检索课教学应重新确立教学目标,实现由检索技能型向信息素质型的转变。探索适应数字信息社会发展需要的现代化实践课的教学模式,加强学生的信息检索能力、信息运用能力和信息处理能力,培养跨世纪复合型人才,已是检索课改革迫在眉睫的任务。文献信息检索实践课教学要建立发现式、讨论式、研究式和合作式等多元化的教学模式,并将这些教学模式合理运用,有效地提高实践课教学艺术和教学效果,以培养学生的自学能力和研究能力。 相似文献
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网络环境下信息检索课合作式教学模式分析 总被引：12，自引：0，他引：12
分析网络环境下信息检索课合作式教学模式的理论依据，对网络环境下信息检索课合作式教学模式的要素进行分析，阐述网络环境下信息检索课合作式教学模式的操作流程。 相似文献
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根据课程改革需要和Blackboard网络平台的特点,设计并构建基于Blackboard网络平台的协作学习教学模式,将其应用于医学信息检索课教学,并对教学效果进行评价.实践结果表明,基于Blackboard平台的网络协作学习教学模式,有助于激发学生学习的积极性,提高教学效率和整体教学质量,更好地实现信息素养教育目标. 相似文献
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当前,高校文献信息检索课的教学任务大多由图书馆承担。由于与专业课联系不紧密,文献信息检索课程发展很不充分。通过探讨文献信息检索课教师与专业任课教师合作教学模式的可行性,寻找文献信息检索课进一步发展的方法和途径。 相似文献
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信息检索课的WebQuest教学方法初探 总被引：12，自引：0，他引：12
随着因特网的迅速发展和普及应用,如何开发和利用丰富的网络资源进行信息检索课的教学是值得关注的问题。本文分析了WebQuest教学模式的特点及其应用于信息检索课教学的意义,并介绍了笔者利用WebQuest方法进行信息检索课的教学实践和有关体会。 相似文献
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介绍了泛在信息环境下信息检索课的特点,分析了高职院校信息检索课的现状,提出了信息检索课应整合教学内容、增加课程时代感、更新教学模式、搭建网络交流平台、加强馆际合作、实现资源共享、提升教师信息素养的教育能力、开展与专业教学进程相适应的定题教学活动等高职院校教学改革的建议。 相似文献
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信息检索课进行双语教学有其必然的时代背景、现实状况、历史使命和评估重任.对信息检索课双语教学的内涵进行了阐释,从分析其教学要素入手构建了其不同的教学模式.并详细论述了其实践过程中存在的问题以及解决措施. 相似文献
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In information retrieval research, models and systems traditionally assume that a single person is querying and reviewing the results. However, several empirical studies of professional practice identified collaboration during IR as everyday work patterns in order to solve a shared information need and to benefit from the diverse expertise and experience of the team members. Moreover, most IR systems that are employed in professional work routines are designed for individual use and prototype collaborative systems are too limited to support use in todays work practice. To bridge this gap, this papers develops and formalizes a decision theoretic approach towards supporting a team of people that explicitly set out together to resolve a shared information need. We develop a formal cost model for collaborative IR that considers the trade-off between estimated relevance of a document as well as estimated document redundancy. From this cost model, we use a decision theoretic approach to derive the notion of activity suggestions, that is, a formal optimum criterion that describes optimum collaboration strategies in IR as the solution of an integer linear program. Those collaboration strategies are suggested to team members with the aim to facilitate the collaborative performance of information retrieval tasks. We demonstrate the application of our model by means of search result division in two collaborative search tasks. In the conducted experiments, we study the effects of different domain knowledge and resulting relevance assessments of team members in four different conditions. The gathered results indicate that our approach can improve the retrieval effectiveness of teams in recall-oriented tasks. 相似文献
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基于合作信息查寻与检索理论模型构建的相关研究工作综述发现语境在合作查寻与检索过程中居于重要地位。在详细分析语境内涵并对比相关概念的基础上,指出语境在合作信息查寻与检索研究中具有方法论属性,并提出以语境为基础的合作信息查寻与检索5C模型。基于5C模型探讨合作信息查寻与检索的路径选择,并揭示其语境运行机制。 相似文献
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信息检索课实训教学是培养和提高学生信息素养、学习能力及解决实际问题能力的关键因素。文章提出改变当前较为传统的教学方式,运用情境学习理论和学习迁移理论,融合多任务情境学习的需求,创新实训教学方法,实行“课内实训+小组讨论汇报+汇报总结点评”三位一体的教学方式。实践证明,该教学方式更加符合学生学习认知规律,可以拓宽信息检索课程的应用环境,塑造灵动有趣有用的课程新形象,开启高效的集体协作学习模式,训练学生科学研究问题的思路和方法,丰富学生的学习体验。 相似文献
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Rebecca Sullivan 《College & Undergraduate Libraries》2014,21(2):232-238
While iPads have grown in use for reference or circulation in academic libraries, the author investigates the potential for using iPads to teach information retrieval. A review of the technical logistics and classroom management strategies accompanies an appraisal of the pros and cons of teaching information literacy with tablets. In a collaborative, inquiry-based classroom, the iPads foster increased student engagement and mastery of search techniques. 相似文献
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When speaking of information retrieval, we often mean text retrieval. But there exist many other forms of information retrieval applications. A typical example is collaborative filtering that suggests interesting items to a user by taking into account other users’ preferences or tastes. Due to the uniqueness of the problem, it has been modeled and studied differently in the past, mainly drawing from the preference prediction and machine learning view point. A few attempts have yet been made to bring back collaborative filtering to information (text) retrieval modeling and subsequently new interesting collaborative filtering techniques have been thus derived. In this paper, we show that from the algorithmic view point, there is an even closer relationship between collaborative filtering and text retrieval. Specifically, major collaborative filtering algorithms, such as the memory-based, essentially calculate the dot product between the user vector (as the query vector in text retrieval) and the item rating vector (as the document vector in text retrieval). Thus, if we properly structure user preference data and employ the target user’s ratings as query input, major text retrieval algorithms and systems can be directly used without any modification. In this regard, we propose a unified formulation under a common notational framework for memory-based collaborative filtering, and a technique to use any text retrieval weighting function with collaborative filtering preference data. Besides confirming the rationale of the framework, our preliminary experimental results have also demonstrated the effectiveness of the approach in using text retrieval models and systems to perform item ranking tasks in collaborative filtering. 相似文献
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《Research Strategies》1998,16(3):211-220
Rapid advancement and new information sources in many academic fields offer expanded opportunities for collaborative teaching Campus-wide programs, such as UWired, are effective in stimulating collaborative teaching, but efforts of individual faculty members and librarians can also produce effective courses This article describes how bioinformatics sources were introduced to students in a human genetics course taught by a professor and a librarian at the University of Tennessee Course content, learning objectives, and student assignments are covered, as well as roles of the professor and librarian m teaching the course The librarian attended each class session, which proved effective in integrating him into the course and expanded his knowledge of how genetics information is used by researchers 相似文献
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采用出声思维、观察、访谈等方法收集5个真实信息需求语境下群体用户合作信息查寻与检索活动的案例的相关数据,通过扎根理论归纳出合作信息查寻与检索行为的17个主要概念范畴并聚焦为5个核心范畴,对5个案例从主体、情境与行为三个层面展开对比研究并描述合作信息查寻与检索过程。基于对合作相关性判断概念范畴的解析,指出影响群体用户合作相关性判断的5个主要因素,并建构合作信息查寻与检索的相关性判断模型。研究表明:合作信息查寻与检索的相关性判据与个体查寻与检索的相关性判据大致相似,群体交流是两者间的最大差异,语境对形成群体共识具有重要作用。 相似文献