History of Goole Pagerank
PageRank was developed at Stanford University by Larry Page (hence the name Page-Rank[5]) and Sergey Brin in 1996[6] as part of a research project about a new kind of search engine.[7] Sergey Brin had the idea that information on the web could be ordered in a hierarchy by "link popularity": a page is ranked higher as there are more links to it.[8] It was co-authored by Rajeev Motwani and Terry Winograd. The first paper about the project, describing PageRank and the initial prototype of the Google search engine, was published in 1998:[4] shortly after, Page and Brin founded Google Inc., the company behind the Google search engine. While just one of many factors that determine the ranking of Google search results, check Page Rank continues to provide the basis for all of Google's web search tools.[9]
PageRank has been influenced by citation analysis, early developed by Eugene Garfield in the 1950s at the University of Pennsylvania, and by Hyper Search, developed by Massimo Marchiori at the University of Padua. In the same year PageRank was introduced (1998), Jon Kleinberg published his important work on HITS. Google's founders cite Garfield, Marchiori, and Kleinberg in their original paper.[4]
A small search engine called "RankDex" from IDD Information Services designed by Robin Li was, since 1996, already exploring a similar strategy for site-scoring and page ranking.[10] The technology in RankDex would be patented by 1999[11] and used later when Li founded Baidu in China.[12][13] Li's work would be referenced by some of Larry Page's U.S. patents for his Google search methods.[14]
Pagerank History
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