Web searching, search engines and Information Retrieval
نویسندگان
چکیده
منابع مشابه
Web searching, search engines and Information Retrieval
This article discusses Web search engines; mainly the challenges in indexing the World Wide Web, the user behaviour, and the ranking factors used by these engines. Ranking factors are divided into query-dependent and query-independent factors, the latter of which have become more and more important within recent years. The possibilities of these factors are limited, mainly of those that are bas...
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The Web is a communication and information technology that is often used for the distribution and retrieval of personal information. Many people and organizations mount Web sites containing large amounts of information on individuals, particularly about celebrities. However, limited studies have examined how people search for information on other people, using personal names, via Web search eng...
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Design/methodology/approach: We conducted a user study in which users evaluated the relevance of documents retrieved by 4 search engines in 2 different health information needs. Users could choose between generalist (Bing, Google, Sapo and Yahoo!) and health-specific search engines (MedlinePlus, SapoSaúde and WebMD). We then analyse the differences between search engines and groups of informati...
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Information retrieval on the Web is very different from retrieval in traditional indexed databases. This difference arises from: the high degree of dynamism of the Web; its hyper-linked character; the absence of a controlled indexing vocabulary; the heterogeneity of document types and authoring styles; the easy access that different types of users may have to it. Thus, since Web retrieval is su...
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ژورنال
عنوان ژورنال: Information Services & Use
سال: 2006
ISSN: 1875-8789,0167-5265
DOI: 10.3233/isu-2005-253-402