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    Some web search engines make special use of Wikipedia content when displaying search results: examples include Microsoft Bing (via technology gained from Powerset) and DuckDuckGo. Collections of Wikipedia articles have been published on optical discs. An English version released in 2006 contained about 2,000 articles. The Polish-language

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  2. To help find sources, Wikipedians have developed a number of source-finding templates which link to searches most likely to find references suitable for use in articles. The most well-known of these is { { find sources }}, an inline template which can be used almost anywhere.

    • Namespace
    • Spaces
    • Parameters
    • Understanding Search Results
    • Refining Results
    • Searching Within A Page
    • Searching For A Specific Person's Contributions
    • Search Wikipedia from Any Web Page
    • SQL Searches / Quarry
    • Delay in Updating The Search Index

    The default search domain is the article space, but any namespace may be specified in a query. At the search results page, any number of namespaces can be specified, and userscan keep those namespaces as their own default search domain. Partial namespace searches can be made by specifying the initial letters of a page name.

    The use of spaces is, in general, intuitive. Unnecessary spaces, and all non-alphanumeric characters except " are ignored, which makes for flexibility; it is simplest and best to avoid typing unnecessary spaces, although the tolerance for grey space simplifies copying and pasting search terms without the need for cleanup. For example, credit card i...

    Parameters function as name filters, each followed by the search term it operates on. Their search term may be a word or a phrase. The main parameters are namespace:, intitle:, insource:, incategory:, and prefix:. ("namespace" as used here isn't literal – use the name of the actual namespace desired). "prefix:" differs from the other parameters in ...

    The search string entered will be displayed in the search box on the page, in case you wish to modify it. Spelling corrections and query corrections are offered at the top of the results (see Preliminary reports, below). Note that search results include content from templates displayed on the pages searched. The order that search results are presen...

    The Searchpage is designed for presenting and refining results in a re-search loop controlled by modifying the query or the search parameters, such as namespace.

    The internal search engine cannot locate occurrences of a string within the page you are viewing but browsers can usually do this with Ctrl+F, or ⌘ Command+Fon a Mac.

    Due to the way the wikimedia database is indexed, there's no direct way to search for something like insource:foo author:person. But, you can come close in some situations. If you're looking for something on a talk (or, sometimes, project) page, people tend to leave a signature after each edit, and such pages are usually set up so old edits roll of...

    To get Wikipedia search results while on any web page, you can temporarily set your web browser's search box to become a Wikipedia search search box, even though you're on another web site; see Help:Searching from a web browser. This trick removes the need to first navigate to Wikipedia from a web page, and thendo the search or navigation. It is a ...

    The entire wikipedia database (with some redactions for privacy) is exposed for SQL queries at the experimental Quarry service. Using this requires a high degree of technical skill; you must not only know SQL, but also be able to navigate the complex (and not always well documented) database schema. For those who are so equipped, it may provide ano...

    Because people like to see their work in search results, the search engine attempts to update in near real-time. Edits made to pages via templates can take a little longer to propagate. If you see the index lagging more than a day or so, report it. For other technical issues with the search engine, please leave a message on the talk page. To power ...

  3. Apr 20, 2015 · Where does Wikipedia’s information come from? Wikipedia helps us make sense of the world. In 277 languages from Ukrainian to Urdu, its 36 million articles deepen our understanding of the people, places and ideas that matter to us.

  4. Aug 5, 2013 · ... As the largest edition, English Wikipedia editors are more likely to be White and live in the United States and the United Kingdom (Wagner et al., 2016). A study shows that 56 and 13% of...

  5. Dec 3, 2020 · The information comes from a wide range of openly licensed sources such as Wikipedia, The Encyclopedia of Life, Johns Hopkins University CSSE COVID-19 Data, and the Data Commons Project, an open knowledge database of statistical data we started in collaboration with the U.S. Census, Bureau of Labor Statistics, Eurostat, World Bank and many others.

  6. A search engine is a software system that finds web pages that match a web search. [1] They search the World Wide Web in a systematic way for particular information specified in a textual web search query. The search results are generally presented in a line of results, often referred to as search engine results pages (SERPs).

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