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PageRank is an algorithm developed at Google in order to analyze the importance of different links.
PageRank works by taking every link in a network, and finding the number of links to any given node in the network. The number of links leading into a page indicates the ranking of the page, with links coming from pages with higher ranking contributing more favorably than those of low ranking.
- Search Engine:
- Obvious use case, using hyperlinks to map the Internet, finding websites of high importance to show the user
- Ranking scholarly papers
- Original implementation, highly cited papers are more credible, especially if they are cited by other papers which are themselves highly cited