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  2. List of NP-complete problems - Wikipedia

    en.wikipedia.org/wiki/List_of_NP-complete_problems

    Graphs occur frequently in everyday applications. Examples include biological or social networks, which contain hundreds, thousands and even billions of nodes in some cases (e.g. Facebook or LinkedIn).

  3. RankBrain - Wikipedia

    en.wikipedia.org/wiki/RankBrain

    RankBrain is a machine learning-based search engine algorithm, the use of which was confirmed by Google on 26 October 2015. [1] It helps Google to process search results and provide more relevant search results for users. [2]

  4. Determination of the day of the week - Wikipedia

    en.wikipedia.org/wiki/Determination_of_the_day...

    For determination of the day of the week (1 January 2000, Saturday) the day of the month: 1 ~ 31 (1) the month: (6) the year: (0) the century mod 4 for the Gregorian calendar and mod 7 for the Julian calendar (0). adding 1+6+0+0=7. Dividing by 7 leaves a remainder of 0, so the day of the week is Saturday. The formula is w = (d + m + y + c) mod 7.

  5. Questions (game) - Wikipedia

    en.wikipedia.org/wiki/Questions_(game)

    Questions is a game in which players maintain a dialogue of asking questions back and forth for as long as possible without making any declarative statements. Play begins when the first player serves by asking a question (often "Would you like to play questions?"). The second player must respond to the question with another question (e.g.

  6. Ask a Stupid Question Day - Wikipedia

    en.wikipedia.org/wiki/Ask_a_Stupid_Question_Day

    Ask a Stupid Question Day is a holiday that is sometimes celebrated in the United States, usually by school students and teachers. [1] Although Ask a Stupid Question Day's default date is September 28, in practice it is usually observed on the last school day of September.

  7. Doomsday rule - Wikipedia

    en.wikipedia.org/wiki/Doomsday_rule

    Applying the Doomsday algorithm involves three steps: determination of the anchor day for the century, calculation of the anchor day for the year from the one for the century, and selection of the closest date out of those that always fall on the doomsday, e.g., 4/4 and 6/6, and count of the number of days between that date and the date in ...

  8. Millennium Prize Problems - Wikipedia

    en.wikipedia.org/wiki/Millennium_Prize_Problems

    The question is whether or not, for all problems for which an algorithm can verify a given solution quickly (that is, in polynomial time), an algorithm can also find that solution quickly. Since the former describes the class of problems termed NP, while the latter describes P, the question is equivalent to asking whether all problems in NP are ...

  9. Concept learning - Wikipedia

    en.wikipedia.org/wiki/Concept_learning

    Concept learning, also known as category learning, concept attainment, and concept formation, is defined by Bruner, Goodnow, & Austin (1956) as "the search for and testing of attributes that can be used to distinguish exemplars from non exemplars of various categories".