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魏来 《图书情报工作动态》2005,(10):F0003-F0003
博客搜索（Blogsearch）是基于Google检索技术的一种博客搜索方式。Google一直坚信博客可以帮助用户更有效的利用博客空间。获得博客搜索的方式有以下几种：（1）Blogsearch．google．com（google模式的界面）；（2）Search．blogger．com（Blogger模式的界面）；（3）Blogger Dashboard。博客搜索期望给所谓的博客空间增加可见度。Google利用博客搜索定期的对博客内容进行检索，可以比普通的网络搜索引擎更快的发现新的内容。 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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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
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基于内容的图像检索技术是对图像的物理内容为加工对象的检索技术之一,主要实现方式包括基于颜色、纹理、形状、空间位置和语义等。其中基于颜色的图像检索发展最为成熟,而基于语义的检索则尚处于探讨、研究阶段。基于内容检索和基于文本检索在数字图书馆中可以融合共同提供检索服务。Google为这一尝试提供了在后控阶段的有效案例,而真正的实现两者的融合是在预处理阶段。两者结合在数字图书馆中的应用是可行的,相信能够提供更好的图像检索服务。 相似文献
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基于Google学术搜索与中国引文数据库的引文检索比较分析 总被引：2，自引：0，他引：2
冯向春 《图书馆理论与实践》2008,(4)
基于引文检索的Google学术搜索与中国引文数据库的异同点,比较两者检索功能的强弱,评价两者的检索效果,认为:中国引文数据库的引文检索功能较强,检索效果良好;Google学术搜索优势在于能够检索图书和内部刊物被引情况,两者结合使用才能全面评价学术文献的价值。最后,对两者的发展趋势作出预测。 相似文献
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信息检索系统的服务展示界面及关键技术 总被引：1，自引：0，他引：1
对国外信息服务系统进行调研,将信息系统界面分为基于检索结果的类目列表式界面展示、基于检索结果的图形化界面展示、基于用户行为特征的标注式界面展示、基于预设问题的导航式界面展示、基于自然语言提问的答案界面展示5种类型,并分析每种类型界面展示的特点及背后的关键技术。 相似文献
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互联网的普及和网络信息的大量增加,使网络信息资源检索越来越普及,促进了网络信息检索技术的不断发展。作为网络信息资源检索主要工具的搜索引擎和搜索代理技术也在进步和完善。Google和CopemicAgent分别是网络搜索引擎和搜索代理的典型代表,在网络信息搜索方面既有共性又有区别。文章主要从用户的角度对Google和CopemicAgent的信息检索方式、检索技巧、检索功能等三个方面进行比较。 相似文献
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This article summarizes published documents on metadata provided by Google for books scanned as part of the Google Book Search (GBS) project and provides suggestions for improvement. The faulty, misleading, and confusing metadata in current Google records can pose potentially serious problems for users of GBS. Google admits that it took data, which proved to be inaccurate, from many sources and is attempting to correct errors. Some argue that metadata is not needed with keyword searching; but optical character recognition (OCR) errors, synonym control, and materials in foreign languages make reliable metadata a requirement for academic researchers. The authors recommend that users should be able to submit error reports to Google to correct faulty metadata. 相似文献
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As studies show, undergraduates needing information frequently begin their research in a search engine such as Google rather than a library online catalog. To test the efficacy of that research approach, a local usability study of fifty topics in ten disciplines of study was performed. In a comparison of WorldCat.org and Google Books to the library catalog, it was found that more than double the number of hits to library-held material was found by searching WorldCat.org than the library online catalog alone. It was also learned that twice as many hits to articles and material within a thirty-mile radius were found in WorldCat.org and Google Books as compared to searching the online catalog alone. These results suggest the need to improve the native interface of catalogs and for continued placement of resources outside the library catalog. 相似文献
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文章采用网络调查及文献调研法,从图片检索、音乐检索和视频检索三方面对中国的百度、Sogou和Soso,韩国的Naver、Nate和Daum,美国的Google和Yahoo!八大搜索引擎提供的多媒体检索服务进行分析与测评。调查结果显示,Yahoo!不提供音乐检索,其余调查对象都提供图片检索、视频检索和音乐检索三项服务。大多数搜索引擎公司的图片检索和视频检索都支持高级检索功能,Daum导入了语义检索,Google和Yahoo!引入了安全检索服务过滤有害信息。 相似文献
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ABSTRACT Web-scale discovery services promise fast, easy searching from a single Google-like box, pleasing users and making library resources more discoverable. Some librarians embrace the concept of giving users what they have come to expect from Google, while others are concerned that this will “dumb down” searching and undermine information literacy. In this article we explore the potential impact of Web-scale discovery tools on information literacy, focusing particularly on undergraduate research skills. We review the existing literature and present findings and experiences from two mid-sized academic libraries that have adopted EBSCO Discovery Service as their library home page portal. 相似文献
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JungWon Yoon 《Library & information science research》2011,33(4):269-275
With the proliferation of images in daily life, it is crucial to investigate what, where, why and how people search images in response to their everyday needs. In order to examine the daily needs of image searchers, a survey questionnaire was administered to 58 college students. The results demonstrated that the majority of college students use Google or Google Image for searching images, because of its familiarity and user-friendly interface. Although searchers reported a high success rate (85.6%) of image retrieval, they wanted search engines to return more relevant images and fewer irrelevant and redundant images. They also desired search engines to provide high resolution and full scale images. Students searched for images for various purposes, including to: prepare presentation materials, use as computer wallpaper, get ideas for purchasing, travel destinations, or beauty/fashion items, see what something looks like, verify names, solve problems, out of curiosity, and so on. Some types of needs revealed that users were interested in associated textual information, as well as the image itself. The implications for image retrieval system design are 1) it is proposed that metadata information (size, quality, type, copyright information) be utilized in browsing or navigating images, and 2) further research on an information retrieval system that can support users looking for both text and images concurrently is suggested. 相似文献
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Google scholar搜索引擎特征研究 总被引：3，自引：0，他引：3
本文分析了Google scholar的资料来源、检索策略、检索结果显示等特征,并主要从引文数据库角度评价其检索优劣势,谈其发展前景. 相似文献
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几种搜索引擎中Image搜索的比较 总被引：4，自引：0，他引：4
李爱国 《现代图书情报技术》2002,18(5):35-36
随着用户对网上图像搜索要求的不断增长，各种基于Web的图像搜索引擎应运而生。但是各种不同的图像搜索引擎在搜索的响应时间、检索出的图像的数量、准确性、检索结果的排序等方面存在着较大的差异。本文首先就图像搜索模式作一简单的叙述，然后对搜索引擎Google、Excite、Yahoo、Ixqiuck的Image Search进行比较。 相似文献
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The literature shows that students are more likely to begin their search via Google, as it is perceived to be easier and more accessible than other databases or publisher platforms. The invisible web, specifically publisher platforms, is sometimes too difficult for students to access; there are also suggestions that Google Scholar in particular may outperform other paid-for databases. The ease of access and the somewhat misguided notion that Google Scholar has more reliable information than that provided by libraries makes search engines all the more attractive. This culture of searching using a single search box is reflected in the increase in the number of libraries opting for single resource discovery systems such as Summon or Primo, which use a single search covering all the library holdings. The findings suggest that whilst Google Scholar can perform well in some circumstances, it performed only moderately well when compared with LISTA and Summon – the single resource discovery system tested. It was the least successful resource in terms of precision when compared with LISTA, Summon, Emerald and Sage. However, the simplicity of search engines begs the question: will databases and publisher platforms become obsolete? The study concludes that subject specific databases are more effective than search engines, but the complexity of accessing the invisible web is hindering their popularity. 相似文献