共查询到20条相似文献，搜索用时 15 毫秒
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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
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目前以Google和百度为代表的搜索引擎基本上都是由商业网站运营的.搜索引擎属于文化交流传播的基础工程.正像重要交通枢纽作为公共物品主要由国家投资和管理那样,重要的搜索引擎网站也应当按公共物品来建设,公益性必须放在第一位. 相似文献
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Search engine optimization, or the practice of designing a web site so that it rises to the top of the results page when users search for particular keywords or phrases, has become so prevalent on the modern web that it has a significant influence on Google search results. This article examines the techniques used by search engine optimization practitioners, the difference between “white hat” and “black hat” optimization tactics, and why it is important for library staff to understand these techniques and their impact on search engine results pages. It also looks at ways that library staff can help their users develop awareness of the factors that influence search results and how to better assess the quality and relevance of results listings. 相似文献
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Google搜索引擎及其技术简介 总被引：19，自引：2，他引：17
搜索引擎已经成为人们网络：生活必不可少的工具，因此，国内外的各种搜索引擎纷纷出现。而Google搜索引擎以其雄厚的技术为支撑，凭借其强大的检索功能和高质量的检索服务，逐渐吸引和留住了世界各地的大量网民，成为了世界上最著名的搜索引擎之一。本文在介绍Google基本概况、检索特色及特色功能的基础上，介绍了其核心技术及工作机理，最后对其发展趋势作了分析。 相似文献
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基于用户行为分析的搜索引擎优化策略 总被引：8，自引：0，他引：8
搜索引擎在给广大网络用户带来便捷的同时,也暴露出其不足。从网络用户利用搜索引擎的角度分析搜索引擎存在的问题以及用户利用搜索引擎时出现的障碍,在此基础上提出搜索引擎的优化模式。此外,提出由用户、知识生产者与知识组织者三者与搜索引擎共同组成一个信息系统的建议,以达到优化搜索引擎的目的。 相似文献
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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
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国内对Google图书搜索项目的研究进展 总被引：1，自引：0，他引：1
从文献入手,对我国学者近年来有关Google图书搜索项目的研究进行梳理和总结,首先简要分析了此项目的中文定名,然后归纳出国内学者关注的重点是版权问题、Goosle图书搜索产生的影响和图书馆的应对等几方面,并进行评述.最后建议今后可以研究图书搜索比较分析以及图书馆参与图书搜索项目后如何进一步发展. 相似文献
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江苏科技信息网指南车搜索引擎的设计与探讨 总被引：1，自引：1，他引：0
本文叙述了网络搜索引擎的类型和工作方式,并介绍了自行开发的全自动中文搜索引擎——指南车搜索引擎的设计思想。指南车以Java为开发工具,无须人工干预,已运行于江苏科技信息网。 相似文献
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《Journal of Web Librarianship》2013,7(4):525-547
ABSTRACT Search engine use is one of the most popular online activities. According to a recent OCLC report, nearly all students start their electronic research using a search engine instead of the library Web site. Instead of viewing search engines as competition, however, librarians at Binghamton University Libraries decided to employ search engine optimization strategies to make their Web site more visible on the search engine result pages. Although search engine optimization is used frequently by commercial Web sites, few libraries have attempted to optimize their own sites. This article describes Binghamton University's experiences in developing and implementing an optimization pilot project. The research presented in this article has importance for libraries who may be considering an optimization project for their own sites. 相似文献
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古籍数字画廊的实践与探讨 总被引：2，自引：0，他引：2
通过对“中国科学院图书馆特藏文献”数字画廊的内容、特点、风格及制作设备和技术的介绍，探讨在人员、设备、资金不足的情况下，如何逐步实现古籍文献的数字化。 相似文献
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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
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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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《Medical reference services quarterly》2013,32(2):97-107
Abstract Google is the search engine of choice for most Internet users. For a variety of reasons, librarians and other expert searchers do not always use Google to its full potential, even though it provides capabilities not possible in traditional bibliographic databases and other search engines. Applying expert searching principles and practices, such as the use of advanced search operators, information retrieval strategies, and search hedges to Google will allow health sciences librarians to find quality information on the Internet more efficiently and effectively. 相似文献
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徐芳 《现代图书情报技术》2009,25(5):81-85
介绍一种新的站内搜索引擎实现,它是基于Google、Baidu等大型通用搜索引擎实现站内搜索的二次开发。与其他类似应用相比其优点是：搜索结果页面干净、无其他广告、推广信息等附加内容;能同时指定多个域名,达到在主网站、子网站及类网站间同时搜索的目的。 相似文献
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Robert J. Lackie MLIS 《The Reference Librarian》2013,54(1):35-53
Google's initiative to scan and add book content into its search engine has resulted in much praise and protest. Changing its digitization project's name from Google Print to Google Book Search and adding information to its site did not keep Google out of copyright court. However, publicity surrounding this project has spawned renewed interest in book digitization projects, with collaborative efforts quickly growing. This article will look at Book Search's history, highlight how it has been altered along with its name, and point out other interesting book digitization projects that Book Search has spawned or recently brought into the limelight, such as those associated with the Internet Archive. 相似文献
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Rebecca B. French 《Journal of Web Librarianship》2019,13(2):156-197
Information about faculty and their publications can be found in library databases such as the Library of Congress Name Authority File, VIAF, WorldCat, and institutional repositories; in identifier registries such as ORCID and ISNI; and on academic social networking sites such as Academia, Google Scholar, and ResearchGate, but the way search engines use such identifiers and profiles is unclear. Therefore, researchers at a large comprehensive university conducted several rounds of web searching before and after the creation and modification of faculty authority records. The sample consisted of 24 faculty and the 35 publications associated with their authorities. The researchers searched for the faculty and their publications on the social networking and identity websites directly, and then used Google, Bing, and Google Scholar to record which of the faculty members’ profiles and publications were found within the top 50 results. Faculty with more profiles were more visible in search engine results, and faculty with authority records ranked more highly in Google. Results related to publication discovery and ranking were more inconclusive, but revealed clear differences between search tools. The implications of this exploratory research can support educational efforts about academic identities and scholarly profiles, begin a research agenda, and inform methodological development surrounding the influence of identity records and academic social networking profiles on web visibility. 相似文献
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[目的/意义] 搜索引擎是用户访问网络资源的重要入口,识别用户搜索策略有助于发现用户搜索的认知规律,让搜索引擎更好地理解用户搜索。[方法/过程] 采用Microsoft顺序分析与聚类分析算法对用户搜索日志中的搜索时间进行分析,识别用户利用搜索引擎时普遍采用的搜索策略,并概括不同类型搜索策略的特征。[结果/结论] 用户在搜索中存在“快速消费”策略、“试探”策略、“探索”策略和“终止与确认”策略,不同策略在搜索时间、浏览次数、用户认知过程等方面表现出明显的差异。 相似文献
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搜索引擎的最新进展述要 总被引：1，自引：0，他引：1
搜索引擎已成为人们利用网络的最重要工具.目前,网络上出现了一些具有新颖性、创新性的搜索引擎或挖掘出搜索引擎的新功能,其中有些研究成果直接代表着搜索引擎的发展方向.文章通过跟踪、试用、分析等环节,对新的搜索引擎或具有新功能的搜索引擎进行了归纳,便于人们更好地了解当前世界搜索引擎的现状. 相似文献