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  2. Domain authority - Wikipedia

    en.wikipedia.org/wiki/Domain_authority

    The domain authority (also referred to as thought leadership) of a website describes its relevance for a specific subject area or industry.Domain Authority is a search engine ranking score developed by Moz. [1] This relevance has a direct impact on its ranking by search engines, trying to assess domain authority through automated analytic algorithms.

  3. Okapi BM25 - Wikipedia

    en.wikipedia.org/wiki/Okapi_BM25

    Okapi BM25. In information retrieval, Okapi BM25 (BM is an abbreviation of best matching) is a ranking function used by search engines to estimate the relevance of documents to a given search query. It is based on the probabilistic retrieval framework developed in the 1970s and 1980s by Stephen E. Robertson, Karen Spärck Jones, and others.

  4. Metasearch engine - Wikipedia

    en.wikipedia.org/wiki/Metasearch_engine

    Metacrawler reduced the amount of search engines queried to 6, but although it produced more accurate results, it still wasn't considered as accurate as searching a query in an individual engine. [6] On May 20, 1996, HotBot, then owned by Wired, was a search engine with search results coming from the Inktomi and Direct Hit databases. It was ...

  5. Ranking (information retrieval) - Wikipedia

    en.wikipedia.org/wiki/Ranking_(information...

    Ranking of query is one of the fundamental problems in information retrieval (IR), [1] the scientific/engineering discipline behind search engines. [2] Given a query q and a collection D of documents that match the query, the problem is to rank, that is, sort, the documents in D according to some criterion so that the "best" results appear early in the result list displayed to the user.

  6. PageRank - Wikipedia

    en.wikipedia.org/wiki/PageRank

    A search engine called "RankDex" from IDD Information Services, designed by Robin Li in 1996, developed a strategy for site-scoring and page-ranking. [15] Li referred to his search mechanism as "link analysis," which involved ranking the popularity of a web site based on how many other sites had linked to it. [16] RankDex, the first search ...

  7. Search engine optimization metrics - Wikipedia

    en.wikipedia.org/wiki/Search_engine_optimization...

    Domain Authority (DA), a website metric developed by Moz, is a predictive metric to determine a website's traffic and organic search engine rankings. Domain Authority is based on different link metrics, such as number of linking root domains, number of total backlinks, and the distance of backlinks from the home page of websites.

  8. Google Panda - Wikipedia

    en.wikipedia.org/wiki/Google_Panda

    Google Panda is a major change to Google 's search results ranking algorithm that was first released in February 2011. The change aimed to lower the rank of "low-quality sites" or "thin sites", [1] in particular "content farms", [2] and return higher-quality sites near the top of the search results. CNET reported a surge in the rankings of news ...

  9. Search engine (computing) - Wikipedia

    en.wikipedia.org/wiki/Search_engine_(computing)

    Search engine (computing) In computing, a search engine is an information retrieval software system designed to help find information stored on one or more computer systems. Search engines discover, crawl, transform, and store information for retrieval and presentation in response to user queries. The search results are usually presented in a ...