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Faceted search
Faceted search, also called faceted navigation or faceted browsing, is a technique for accessing information organized according to a faceted classification system, allowing users to explore a collection of information by applying multiple filters. A faceted classification system classifies each information element along multiple explicit dimensions, called facets, enabling the classifications to be accessed and ordered in multiple ways rather than in a single, pre-determined, taxonomic order.〔(Faceted Search ), Morgan & Claypool, 2009〕
Facets correspond to properties of the information elements. They are often derived by analysis of the text of an item using entity extraction techniques or from pre-existing fields in a database such as author, descriptor, language, and format. Thus, existing web-pages, product descriptions or online collections of articles can be augmented with navigational facets.
Within the academic community, faceted search has attracted interest primarily among library and information science researchers, and to some extent among computer science researchers specializing in information retrieval.〔(SIGIR'2006 Workshop on Faceted Search - Call for Participation )〕
==Development==
The Association for Computing Machinery's Special Interest Group on Information Retrieval provided the following description of the role of faceted search for a 2006 workshop:
The web search world, since its very beginning, has offered two paradigms:
*Navigational search uses a hierarchy structure (taxonomy) to enable users to browse the information space by iteratively narrowing the scope of their quest in a predetermined order, as exemplified by Yahoo! Directory, DMOZ, etc.
*Direct search allows users to simply write their queries as a bag of words in a text box. This approach has been made enormously popular by Web search engines.
Over the last few years, the direct search paradigm has gained dominance and the navigational approach became less and less popular. Recently, a new approach has emerged, combining both paradigms, namely the faceted search approach. Faceted search enables users to navigate a multi-dimensional information space by combining text search with a progressive narrowing of choices in each dimension. It has become the prevailing user interaction mechanism in e-commerce sites and is being extended to deal with semi-structured data, continuous dimensions, and folksonomies.〔(SIGIR'2006 Workshop on Faceted Search - Call for Participation )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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