|
Yahoo! Search is a web search engine owned by Yahoo. it is the third largest search engine in the US by the query volume at 12.8%, after its competitors Google at 64.5% and Bing at 19.8%. Originally, "Yahoo Search" referred to a Yahoo-provided interface that sent queries to a searchable index of pages supplemented with its directory of websites. The results were presented to the user under the Yahoo! brand. Originally, none of the actual web crawling and data housing was done by Yahoo! itself. In 2001, the searchable index was powered by Inktomi and later was powered by Google until 2004, when Yahoo! Search became independent. On July 29, 2009, Microsoft and Yahoo! announced a deal in which Bing would henceforth power Yahoo! Search.〔 == Search technology acquisition == Seeking to provide its own search engine results, Yahoo! acquired their own search technology. In 2002, they bought Inktomi, a "behind the scenes" or OEM search engine provider, whose results are shown on other companies' websites and powered Yahoo! in its earlier days. In 2003, they purchased Overture Services, Inc., which owned the AlltheWeb and AltaVista search engines. Initially, even though Yahoo! owned multiple search engines, they didn't use them on the main yahoo.com website, but kept using Google's search engine for its results. Starting in 2003, Yahoo! Search became its own web crawler-based search engine. They combined the capabilities of search engine companies they had acquired and their prior research into a reinvented crawler called ''Yahoo Slurp''. The new search engine results were included in all of Yahoo's websites that had a web search function. Yahoo! also started to sell the search engine results to other companies, to show on their own websites. Their relationship with Google was terminated at that time, with the former partners becoming each other's main competitors. In October 2007, Yahoo! Search was updated with a more modern appearance in line with the redesigned Yahoo! home page. In addition, ''Search Assist'' was added; which provides real-time query suggestions and related concepts as they are typed. In July 2008, Yahoo! Search announced the introduction of a new service called "Build Your Own Search Service," or BOSS. This service opens the doors for developers to use Yahoo!'s system for indexing information and images and create their own custom search engine. In January 2010, Microsoft announced a deal in which it would take over the functional operation of Yahoo! Search, and set up a joint venture to sell advertising on both Yahoo! Search and Bing known as the Microsoft Search Alliance. A complete transition of all Yahoo! sponsored ad clients to Microsoft adCenter (now Bing Ads) occurred in October 2010.〔 In April 2015, the Microsoft partnership was modified, now only requiring Bing results on the "majority" of desktop traffic, opening the ability for Yahoo! to enter into non-exclusive deals for search services on mobile platforms and the remainder of desktop traffic. In October 2015, Yahoo! subsequently reached an agreement with Google to provide services to Yahoo! Search through the end of 2018, including advertising, search, and image search services.〔(【引用サイトリンク】url=http://www.theverge.com/2015/10/20/9577519/yahoo-google-search-deal )〕〔(【引用サイトリンク】url=http://arstechnica.com/information-technology/2015/04/microsoft-loses-exclusivity-in-shaken-up-yahoo-search-deal/ )〕〔(【引用サイトリンク】url=http://techcrunch.com/2015/04/16/microsoft-and-yahoo-renew-search-allian/ )〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Yahoo! Search」の詳細全文を読む スポンサード リンク
|