共查询到20条相似文献，搜索用时 218 毫秒
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从理论与实践分析的角度,分析比勒费尔德大学图书馆通过对相关软件市场和搜索技术调查,选择FAST DATA SEARCH技术,研制出面向因特网免费学术资源的BASE。并对BASE产生的背景、技术实现、资料来源、检索方法、实用技术、数据结构,以及发展路程、学术地位、发展前景等进行分析。该索引注重收藏德国启蒙时期人文科学系列核心期刊类“数字藏书”和囊括“数学”领域高质量的电子资源,实现了因特网免费网络学术信息资源索取的“一体化服务”。 相似文献
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Google学术搜索与百链云图书馆均可以对异构资源进行统一检索,文章对二者的信息来源、检索界面、检索方法及检索结果进行对比,并对其特色功能进行分析,为用户进行一站式学术检索提供指导和帮助。 相似文献
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读秀学术搜索是一个高水平的学术检索平台,具有很高的学术研究价值。现基于我国对读秀学术搜索的研究文献,围绕其功能特征、检索性能、对图书馆的影响及其价值这几个方面作了综述,并指出目前研究的不足,以期对图书馆自身建设和学科发展产生积极作用。 相似文献
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利用Sakai平台建立个人学术资源管理系统 总被引：2，自引：0，他引：2
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目前地方普通高等院校频繁采购第三方“一站式”学术检索平台,检索水平参差不齐。论文选取国家重点投资的CALLS的e读学术搜索服务和第三方研发的读秀学术搜索平台为例,通过对比分析两类检索平台的特点及其差异性,分析当前一站式检索平台建设中存在的问题以及改进方向,最后用实例进行验证分析,为高校图书馆在学术检索平台的建设上提供参考。 相似文献
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从谷歌学术搜索性能测评、谷歌学术搜索对图书馆的影响及图书馆的应对策略、谷歌学术搜索的检索方法及应用等方面对我国谷歌学术搜索研究现状进行综述,以期能对本领域今后的研究提供一定的参考与启示. 相似文献
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虚拟图书馆（virtual library)是美国人AJ哈利于1980年提出的，1992年GaperDKaye把虚拟图书馆定义为“利用电子网络远程获取信息与知识的一种方式”。实际上，虚拟图书馆是一种环境，是一种利用计算机与网络技术远程获得取图书馆情报资源、开展信息服务的行为。具体地说，虚拟图书馆就是根据特定的目标，选定信息资源的学科领域，对有关网站网页进行搜索和收集，加以鉴别、核实，对核实过的网赴重新进行合理的组织，使之能够提供检索、浏览和链接的信息，以及维护这种信息服务，它是组织Internet网上信息资源的一种有效而经济的形式，目的在于帮助用户从巨大的登记处网络中迅速而准确地找到其所需的特定信息。 相似文献
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当前高校图书馆信息资源服务主要是以传递模式为主，既包含“搜索以获得” 的结果，也涉及“搜索以学习”的过程。学习型信息资源服务为学生学习创设了一种学习环境，以信息资源检索和传递为基础，包含了其他支持学习的多种要素、多个层面和多样方式。本文结合高校图书馆学习支持服务的分析框架，从资源、支架、共同体三个方面，基于静态整体与动态过程两个视角对现有学习型信息资源服务方式的优势与不足进行分析，进而提出学习型信息资源服务方式创新的相关建议。参考文献２５。 相似文献
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个性化跨语言学术搜索技术研究 总被引：1，自引：0，他引：1
学术搜索引擎是一种行业化的搜索引擎,但因其缺乏个性化的服务,使得用户的学术文献检索效率低下,海量的数字学术资源得不到充分利用.本文使用Google翻译,研究基于机器翻译的中、英、俄、法和西班牙等五个语种跨语言学术检索.在跨语言学术搜索的基础上研究个性化检索技术,提出一种基于聚类的个性化信息检索方法:通过观察用户对搜索结果聚类的点击行为,生成并更新用户实时兴趣模型,采用余弦夹角公式计算用户实时兴趣模型与搜索返回结果的相似度,根据相似度大小,为用户提供个性化重排序的搜索返回结果.实验结果证明了提出方法的有效性. 相似文献
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基于TAM及TTF模型构建一个学术信息搜索系统使用及绩效评价模型,并采用问卷调查和结构方程建模,以中国知网(CNKI)跨库检索系统、谷歌学术为研究对象进行实证研究,以探寻用户数字学术资源搜索行为及其对绩效的影响。研究发现,任务-技术适配与绩效期望之间存在显著的相关关系,使用与绩效之间没有显著的相关性。此外,任务-技术适配对用户感知易用性及感知有用性均存在着正向影响,而感知易用性及感知有用性直接影响着用户对于数字学术资源搜索系统的使用。 相似文献
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This paper presents qualitative findings about the search behaviors and research habits of students interviewed at six college and university campuses in the US. Our findings suggest that students’ strategies are influenced by both their non-academic search experiences as well as the broader academic context of their research tasks. Their behaviors suggest an on-going negotiation of these influences, evidenced by the ways they incorporate Google into their research strategy while still closely adhering to faculty instruction for using library resources. Students bring a strong sense of self-reliance to the research process, yet they still experience many barriers and pain points accessing library resources. We have included recommendations for librarians and faculty who, by better understanding the journey of an academic researcher, can work in concert to reduce the barriers and increase the success of students’ research efforts. 相似文献
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《Journal of Web Librarianship》2013,7(2):94-108
Google Scholar is a free service that provides a simple way to broadly search for scholarly works and to connect patrons with the resources libraries provide. The researchers in this study analyzed Google Scholar usage data from 2006 for three library tools at San Francisco State University: SFX link resolver, Web Access Management proxy server, and ILLiad interlibrary loan server. Overall, the data suggested that Google Scholar had become a very useful resource in the library and was a significant addition to the library's collection of research databases. SFX data revealed requests from Google Scholar grew ten-fold from 2006 to 2011, and that Google Scholar became the top-ranked SFX source for requests in 2011. Library patrons favored Google Scholar over San Francisco State University's federated search tool, MetaLib, and it has become an important source for interlibrary loan requests. Analysis of San Francisco State University usage data will assist other libraries in their decisions about the implementation of Google Scholar. 相似文献
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基于FAHP的图像搜索引擎性能评价 总被引：2，自引：0，他引：2
从搜索范围、界面设计、检索功能和用户支持度等6个角度提出图像搜索引擎性能评价体系,运用模糊层次分析法,对Google、Ditto和百度的性能进行定量评价,得出Google>Ditto>百度的结论,并认为利用FAHP对图像搜索引擎进行性能评价具有一定的可行性和合理性,若与定性分析相结合将有助于评价准确性的提高。 相似文献
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The authors of this paper investigated the impact of the advanced search features of three common search engines on retrieval result performance: Yahoo, Google, and Live Search. The authors analyzed 240 search queries with different information need emphases to determine retrieval effectiveness differences among regular search, title search, exact phrase search, and PDF file format restriction search. A one-way ANOVA method and regression analysis method were used for the study. It was found that the PDF file format restriction search achieved the best retrieval performance among Yahoo, Google and Live Search. The regular search achieved the best web page ranking performance among Yahoo, Google, and Live Search. The findings of this study can be used to assist users in formulating an appropriate search strategy to improve search effectiveness, and to shed light on how search engines react to different types of search features in terms of retrieval effectiveness. 相似文献
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The authors of this paper investigated the impact of the advanced search features of three common search engines on retrieval result performance: Yahoo, Google, and Live Search. The authors analyzed 240 search queries with different information need emphases to determine retrieval effectiveness differences among regular search, title search, exact phrase search, and PDF file format restriction search. A one-way ANOVA method and regression analysis method were used for the study. It was found that the PDF file format restriction search achieved the best retrieval performance among Yahoo, Google and Live Search. The regular search achieved the best web page ranking performance among Yahoo, Google, and Live Search. The findings of this study can be used to assist users in formulating an appropriate search strategy to improve search effectiveness, and to shed light on how search engines react to different types of search features in terms of retrieval effectiveness. 相似文献
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Joan Giglierano 《图书馆管理杂志》2013,53(1-2):101-113
ABSTRACT Almost three years after Google Scholar's inception, only a third of Ohio Library and Information Network (OhioLINK) member libraries link to it from their Web sites. This article reports the results of a July 2007 survey of OhioLINK academic librarians, conducted to find out about their attitudes and current practices regarding promotion of Google Scholar. It compares the findings about placement of Google Scholar on Web sites and inclusion in library instruction with previous research, and includes recommendations for libraries about Google Scholar. 相似文献