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1.
Google Scholar对MEDLINE数据库的检索性能测评 总被引：5，自引：0，他引：5
文章以Google Scholar检索MEDLINE数据的检索结果和PubMed的检索结果进行对比分析,以帮助用户正确认识使用Google Scholar. 相似文献
2.
Google Scholar Beta检索性能的初步分析 总被引：6，自引：1，他引：6
利用多个医学提问，通过对Google Scholar Beta、PubMed、ISI Science Citation Index Expanded、CrossRef Search、Scirus等工具检索结果的对比，分析 Google Scholar Beta 测试版搜索引擎在学术信息检索中的性能表现，特别是检索的查全率、结果的相关性、文献被引用检索等方面的性能，指出其存在的不足，并对该搜索引擎对图书馆跨库查询方案的影响进行初步探讨。 相似文献
3.
直接满足中文用户科研文献需求的网络搜索工具——Google Scholar初探 总被引：5，自引：0，他引：5
Google Scholar即Google学术搜索,是建立在Google搜索引擎基础上,直接面向科研需要的学术资源的网络检索工具。其搜索内容涉及诸多学科,并经业内专家评审,具有相当的权威性。该搜索引擎具有检索操作便捷化,选题标准学术化、引用搜索智能化、瞬间运行高速化等特点。Google Scholar及其中文版的出现,对于推动我国的科技进步和学术研究,具有积极意义。参考文献31。 相似文献
4.
介绍了Google Scholar的定义、概念、搜索技术以及它的出现给文献传递业务带来的影响和变化,论述了由Google Scholar引发的一些思考。 相似文献
5.
Google Scholar在科技论文学术查新中的作用 总被引：4，自引：0，他引：4
Google Scholar是建立在Google搜索引擎上直接面向科研需要的学术资源的网络搜索工具,为广大学术查新工作者提供了极其方便的条件.阐述Google Scholar在科技论文学术查新中的作用,并分析其不足之处,提出了弥补方法. 相似文献
6.
近期．中国国家图书馆对外开放了针对馆藏的检索．读者通过Google Scholar（学术资源搜索）就可以检索到国家图书馆的书目数据，国家图书馆由此成为中国第一个加入Google Scholar的LibraryLink（图书馆链接）的图书馆，实现了国家图书馆数字资源门户与Google Scholar的链接。 相似文献
7.
首先阐述在数字科研时代,在学术交流渠道多元化、网络化的环境下,谷歌学术搜索(Google Scholar)可作为计算机科学领域引文分析的数据源的原因。然后,对目前自动化地采集Google Scholar的引文数据的现状进行概述;进而以统计图灵奖获得者所发表论文的年度引文频次为例,着重阐述如何利用Google Scholar引擎的引文搜索功能设计相关程序,实现对论文各年度被引频次的自动统计;最后,将该方法与Web of Science进行比较,并对实现过程中遇到的问题进行总结。 相似文献
8.
Scirus还是Google Scholar?——两种专业搜索引擎对比分析 总被引：1，自引：0，他引：1
综合性搜索引擎很难满足用户的专业搜索要求,而像Scirus和Google Scholar这样的专业科学搜索引擎弥补了其检索专业信息的很多缺陷.本文主要对两种搜索引擎的收录范围、检索功能、查询结果及其不足等方面进行对比分析. 相似文献
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10.
中文学术搜索引擎的比较研究 总被引：1，自引：1，他引：0
本文通过对Google Scholar、CNKI知识搜索、读秀学术搜索、百度国学、雅虎奇摩学术搜索引擎的功能性比较,指出各自的特点、适用范围,以更好地利用学术搜索引擎. 相似文献
11.
Jeffrey Beall 《期刊图书馆员》2013,64(1):40-53
This article critically examines four Google search products (Google Advanced Search, Google News Advanced Search, Google Books Advanced Search, and Google Advanced Scholar Search) and shows how each uses metadata to enhance or improve search results. In addition, the article shows how metadata can increase search precision and recall in information discovery systems. From a library perspective, this article analyzes some of the metadata-enabled features of Google's advanced search pages and compares these features to those found in a typical online library catalog. From a serials perspective, Google News Advanced Search demonstrates how Google indexes news websites, sites that are essentially continuing resources. As Google incorporates more and more metadata functionality into its advanced search pages, they increasingly begin to function more like online library catalogs and less like search pages found in a traditional Internet search engine. The simple search box has many limitations, and like libraries, Google is increasingly creating and offering metadata-enabled search features that improve search precision and recall in its products. 相似文献
12.
This study measured the degree of Google Scholar adoption within academia by analyzing the frequency of Google Scholar appearances on 948 campus and library Web sites, and by ascertaining the establishment of link resolution between Google Scholar and library resources. Results indicate a positive correlation between the implementation of Google Scholar link resolution and the degree of Google Scholar adoption. 相似文献
13.
《图书馆管理杂志》2013,53(3-4):191-206
SUMMARY Buoyed by its brand name, Google News has grown from its beta stage into a popular news site with a significant share of the Internet market for “Current Events and Global News.” The success of Google News raises questions about the nature of news and even the desirability of Google's presenting news. Where does Google News fit into the myriad news resources available on the Internet and in libraries? How does Google News work? Is Google News an effective source for news research? How will Google News stand up to its competition, in particular a new wave of community news sites? 相似文献
14.
用Delphi和Google Web API开发自己的搜索引擎 总被引：1，自引：0，他引：1
简述Delphi是Google Web API提供的一种Web服务，允许开发人员选择自己喜爱的编程语言开发应用程序，通过基于XML的SOAP信息交换协议与远程的Google服务器连接来调用Google的Web服务；通过实例详细介绍用Delphi和GoogleWeb API开发搜索引擎的方法和步骤。 相似文献
15.
Charlie Potter 《图书馆管理杂志》2013,53(1-2):5-28
ABSTRACT In order to understand better and explain the practices of Google Scholar, this essay takes a rhetorical and holistic look at the search technology, language, and sociopolitical implications of the Google Scholar interface as well as the connection between Google Scholar and the actions of the Google Corporation. The relationship between Google Scholar and the academic library is also explored. In addition, the essay offers ways to encourage students to undertake this kind of critique in the information literacy classroom. 相似文献
16.
《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
17.
GOOGLE数字图书馆计划及其启示 总被引：7，自引：0，他引：7
在介绍Google数字图书馆计划的主要内容及其选择与图书馆合作的原因的基础上,分析了Google数字图书馆计划反对者的动机,探讨了Google数字图书馆计划对图书馆界的影响,指出在促进公众能够普遍获取信息这个目标上,图书馆界和Google应该携手前进。 相似文献
18.
在某种程度上,Google与图书馆、数字图书馆有着理想主义的重合,又有着某些现实主义的优势。Google最值得图书馆学习的是它的理念和意识。Google和图书馆可以互相合作,实现共赢。图书馆也有超越Google的领域。 相似文献
19.
Google搜索引擎技术实现探究 总被引：4，自引：0，他引：4
化柏林 《现代图书情报技术》2004,(Z1)
从技术的角度剖析了 Google搜索引擎的体系结构与工作过程 ,详细介绍了基于 Robot的网页搜索、标引入库和检索引擎三大模块 ,统计了 Google的技术数据 ,并分析了 Google的技术实现特点 ,解释了 Google检索的种种现象。 相似文献
20.
Dissertations can be the single most important scholarly outputs of junior researchers. Whilst sets of journal articles are often evaluated with the help of citation counts from the Web of Science or Scopus, these do not index dissertations and so their impact is hard to assess. In response, this article introduces a new multistage method to extract Google Scholar citation counts for large collections of dissertations from repositories indexed by Google. The method was used to extract Google Scholar citation counts for 77,884 American doctoral dissertations from 2013 to 2017 via ProQuest, with a precision of over 95%. Some ProQuest dissertations that were dual indexed with other repositories could not be retrieved with ProQuest-specific searches but could be found with Google Scholar searches of the other repositories. The Google Scholar citation counts were then compared with Mendeley reader counts, a known source of scholarly-like impact data. A fifth of the dissertations had at least one citation recorded in Google Scholar and slightly fewer had at least one Mendeley reader. Based on numerical comparisons, the Mendeley reader counts seem to be more useful for impact assessment purposes for dissertations that are less than two years old, whilst Google Scholar citations are more useful for older dissertations, especially in social sciences, arts and humanities. Google Scholar citation counts may reflect a more scholarly type of impact than that of Mendeley reader counts because dissertations attract a substantial minority of their citations from other dissertations. In summary, the new method now makes it possible for research funders, institutions and others to systematically evaluate the impact of dissertations, although additional Google Scholar queries for other online repositories are needed to ensure comprehensive coverage. 相似文献