共查询到20条相似文献，搜索用时 93 毫秒
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[目的/意义]从元认知调控视角,探索用户信息搜索策略改变的特征规律,超越传统策略行为表征的分析,强调动态搜索进程中行为主体的能动性,揭示行为内在的触发动机,形成协调认知与行为活动的搜索策略监测和调整思路,为信息搜索系统感知策略的发展变化、激发用户策略的能动意识、支持策略的有效实施提供保障。[方法/过程]通过观察法和刺激回忆法收集学生在学习型搜索任务的完成过程中策略改变的自我意识和行为调整的相关数据,并采用扎根理论对数据进行分析。[结果/结论 ]识别出元认知调控视角下用户信息搜索策略改变的动机意识和行为操作两个特征维度,以及被动调整动机、主动调整动机、检索式调整、检索工具转换、系统功能帮助、任务内容改变6个特征要素,并进一步探索搜索策略改变的动机意识与行为操作之间对应的驱动关系。基于策略改变特征要素,聚类生成自驱型、适应型两类不同的搜索策略改变风格,并进一步发现,自驱型搜索策略改变风格的用户较适应型用户表现出更好的搜索效果。 相似文献
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以国外探索式搜索行为相关研究文献为对象,采用综合归纳方法,从相关理论、基于实验环境和基于真实环境3个方面分析探索式搜索行为的研究进展。研究发现：理论研究吸收了大量早期关于搜索行为探索性的研究成果,但尚未形成清晰的理论框架;基于实验环境的研究主要集中在对行为主体的领域知识、不同的搜索任务、搜索策略、认知变化以及影响因素的研究,尚缺乏各视角下的多层次研究;基于真实环境的研究主要集中在特定资源、特定领域、特定搜索方式以及特定目的的行为研究,尚未形成相应的搜索模型。 相似文献
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社会化搜索研究进展综述 总被引：3，自引：0，他引：3
首先,引入互联网群体协作的思想,对社会化搜索的概念进行初步界定;随后,在宏观与微观两个层面上,重点从动因（why）、用户（who）、目标（what）、形式（how）4个维度对社会化搜索的概念进行深入解析,并分别从行为、技术、应用、资源4个视角对当前社会化搜索的主要研究内容和主题进行归纳,试图从理论上明晰社会化搜索今后的研究思路与方向;最后阐述当前社会化搜索的研究不足和发展趋势。 相似文献
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本研究旨在探索用户在完成不同类型的网络学术信息搜索任务过程中情感的识别及变化。研究综合采用实验法、出声思考法和问卷调查法收集了75名被试完成事实型和主题型两类学术搜索任务过程中的情感数据,并利用配对样本t检验、开放式编码和主轴式编码方法对收集到的数据进行分析。研究结果发现：第一,用户在完成两类搜索任务过程中均会产生正向、负向和中性三种类型的情感。其中,负向情感的数量在两类搜索任务下均呈现出倒V形变化模式;正向情感的数量在不同任务类型下呈现出不同的变化模式;中性情感的数量在两类搜索任务下均非常小。第二,用户在完成搜索任务各阶段的情感源自不同的因素。在需求产生阶段,用户对搜索任务的认知是用户产生情感的主要来源;在执行搜索阶段,用户对搜索结果和搜索策略的认知是导致用户产生情感的主要来源;在选择资源阶段,用户对搜索结果的认知是引发用户产生情感的主要来源。第三,用户搜索满意度在不同任务类型间存在显著差异,即用户完成事实型搜索任务的满意度显著高于完成主题型搜索任务的满意度。本研究可为开发面向用户情感需求的信息检索系统提供理论支持。 相似文献
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[目的/意义]“搜索即学习”背景下,主要探讨认知风格和任务复杂度对移动端视频用户学习型搜索行为的影响机理,该研究有助于深入理解用户视频搜索行为的本质,为更好地设计和优化移动端视频信息搜索系统,提升视频搜索用户体验提供参考。[方法/过程]文章采用实验法,以哔哩哔哩视频平台为测试系统,将用户完成学习型任务的搜索过程划分为知识获取阶段、知识学习阶段、互动反思阶段和知识整合阶段,以社会认知理论为指导,考察个体因素(认知风格)、环境因素（任务复杂度）对用户视频搜索行为的影响。[结果/结论]研究发现,认知风格主要影响用户在学习型搜索任务下知识获取阶段、知识学习阶段和知识整合阶段的行为,任务复杂度对用户视频搜索行为的影响主要表现在知识获取阶段。研究结论有助于提高视频信息搜索用户的交互体验与学习效能,并对优化视频信息搜索系统的交互设计与学习服务功能提供启示。 相似文献
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[目的/意义] 探究用户搜索能力和任务类型对探索式搜索行为的影响,进一步深入认识探索式搜索,以期为建立和完善探索式搜索系统、构建探索式搜索行为模型提供参考。[方法/过程]设计1 个提问应答式搜索任务和 2 个不同复杂度的探索式搜索任务,依据搜索能力对实验者进行分组,开展搜索实验。综合运用问卷调查、浏览器日志分析和搜索过程视频分析,从搜索任务和搜索能力用户两个角度,对探索式搜索行为中的搜索工具、检索词、搜索动作、网页4个方面进行分析。[结果/结论]搜索能力与任务类型对探索式搜索行为产生了不同程度的影响。任务越复杂,探索行为越深入。搜索能力越高,搜索过程越活跃。此外,还归纳了探索式搜索的信息需求演进的动态性、搜索路径的波动前进性等特点。 相似文献
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[目的/意义]学习型搜索关注学习在搜索活动中的核心地位,建构信息行为与学习行为之间的桥梁,以期实现以学习为中心的信息搜索系统的资源优化和功能设计,支持用户更加深入和持久地学习,对学习型社会的建设和发展具有重要意义。本研究对学习型搜索行为过程的元认知调控活动展开分析,刻画和揭示了用户信息行为和学习行为表征背后的控制调节活动的特征和规律。[方法/过程]研究招募了来自北京大学的30名学生,通过观察法和访谈法对他们完成真实自备的学习型搜索任务过程中的元认知调控活动进行了数据收集,并采用扎根理论对数据展开质性分析。[结果/结论]研究识别了获取目标意识、获取操作策略、选择标准意识、选择判断依据、处理目标意识、处理操作策略6个元认知调控活动及其相互作用关系,构建了学习型搜索行为过程中用户元认知调控的概念模型。在该模型基础上,从微观视角剖析学习型搜索行为过程各阶段的元认知调控活动特征;从宏观视角梳理了用户在学习型搜索全过程中发散式和收敛式两种不同的元认知调控特征模式。该模型的构建为后续元认知调控活动的相关探索提供了分析的框架,启发支持学习的搜索系统的功能优化与信息素养教育培训的设计和开展。 相似文献
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Nadia Zavorotna 《Slavic & East European Information Resources》2013,14(1-2):90-96
The author describes the Slavic Humanities Index, a bibliographic database of scholarly and cultural articles on subjects including history; literature; language teaching; linguistics; philosophy; ethnology; performing arts; and cultural, borderland, and regional studies. She discusses its development, its current form and functionality, and plans for the future. 相似文献
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《Slavic & East European Information Resources》2013,14(2-3):69-88
SUMMARY This article discusses Jewish book publishing in most of the Soviet Union's successor states after 1990. All publications on Jewish history, culture, traditions, and religion (Judaism) are included under this rubric. In addition to scholarly and educational publications, fiction translated from Yiddish and Hebrew, and “Russian-Jewish literature” are also included. The author provides statistics and discusses basic themes, linguistic issues, and problems encountered in the post-Soviet states. The article lists different publishers and organizations involved in Jewish book publishing. 相似文献
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《Journal of Web Librarianship》2013,7(3):169-181
This article describes a study of the two most popular plagiarism-detection software platforms available on today's market—Turnitin (http://www.turnitin.com/static/index.html) and SafeAssign (http://www.safeassign.com/). After a brief discussion of plagiarism's relevance to librarians, the authors examine plagiarism-detection methodology and conduct a review of the current literature regarding plagiarism-detection efficacy. To evaluate detection efficacy for Turnitin and SafeAssign, the authors constructed a brief study in which twenty sample papers containing portions of plagiarized material were submitted to each platform. The results show that Turnitin had the highest overall success at plagiarism detection with an 82.4 percent detection rate. Additionally, both platforms had a combined false-positive detection rate of 16.8 percent. The authors conclude that close review of material suspected of plagiarism is still essential for proper identification. 相似文献
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翟中文 《图书馆工作与研究》2011,(9):71-74
本文选择了国内外几个典型的引文数据库,如:美国《艺术与人文科学引文索引》、《社会科学引文索引》、中国的《中文社会科学引文索引》、《中国科技论文引文分析数据库》、中国科学引文数据库等,并对其收录范围、来源文献的学科分布、更新频率等方面进行了比较研究,对今后我国引文数据库的建设提出了一些建议。 相似文献
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《Slavic & East European Information Resources》2013,14(1-2):149-154
ABSTRACT The article describes the development and use of the database BAZTECH: Polish Technical Journal Contents. The database indexes Polish-language scientific and technical journals, and is available free-of-charge on the Internet. 相似文献
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《Slavic & East European Information Resources》2013,14(3-4):111-125
Abstract The Russian government is exerting increasing control over the country's media, although the media are resisting. This government-media conflict is relevant to Western academics and libraries, because the variety and quality of Russian periodicals is at stake. In addition, if the media are constrained, publishers of books are likely to experience restrictions, too. The difficulties the government is having in controlling the media, however, are a measure of how much Russia has changed. At the same time this conflict is occurring, book publishing is thriving. Official statistics show the number of titles published surpassed even the previous record set in 1977. Planning is in progress to restructure the state book industry sector, including publishing, printing and distribution. Book prices have increased more rapidly than inflation, and postage costs have also increased. Russian Press Service is doing its best to keep its prices to Western libraries down. 相似文献
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SUMMARY Describing her experience of establishing an Electronic Document Delivery Service at the library of the Lahore University of Management Sciences (LUMS), the author discusses the various issues, which significantly effect the net cost, delivery time and management process of providing such a service by a library in Pakistan. While presenting multiple options leading to an effective solution, the advantages and disadvantages of each option have been highlighted, and their implications, with particular reference to Pakistani libraries, have been discussed. The various points to be considered by Pakistani Librarians, while selecting a commercial Document Provider, have also been discussed. In the end, the author discusses the potential of using the Electronic Document Delivery facility as a time-saving and cost-effective tool for Resource Sharing among libraries in Pakistan. 相似文献
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ABSTRACT No one can predict what document delivery will look like in the future, but librarians must guard patron confidentiality even in an electronic environment. This time it isn't an easily solved problem like finding another way of recording circulation than handwriting patron names onto circulation cards, it is instead the tracking of personal information attached to electronic text supplied by publishers that is a potential violator of patron privacy. Unmonitored in their efforts to protect their intellectual property without considering the rights of their customers, publishers could pose a threat to their customers' privacy, thus limiting their legal right of free access to information. Although encryption technology would appear to provide an answer to the confidentiality problem, it is not a panacea and that must be considered as the National Information Infrastructure is developed. Librarians need to stay alert to the developments in electronic publishing to be sure their concerns for patron privacy continue to be heard. 相似文献
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This article uses the metaphor of building to frame discussion about how we prepare for the provision of learning in the years
to come. The intention is to catalyze key conversations that will shape how, where, and why we learn. The principal focus
is on areas such as blended learning, mobility, gaming, social networking, holographics, analytics, and the human touch. However,
the larger theme involves challenging the reader to vision how we bring the best of traditional education forward, combine
it with new technologies and techniques, to reach and teach students well. 相似文献
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Mike Shatzkin 《Publishing Research Quarterly》2009,25(3):154-158
The Book Industry Study Group and The Idea Logical Company carried out an online survey to capture publishers’ comments on
how market conditions were changing and what they are doing differently as a result of the economic pressures in the consumer
market. About 250 individuals responded to the online survey. Interviews were carried out of more than a dozen executives
at large and small publishers and their accounts to get further insights. The goal was to identify what are the sales conditions
for trade book publishers today and what publishers are doing to change sales and marketing and even editorial practices to
accommodate changing times. What we have learned from that joint effort is reflected in this article. 相似文献