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  2. Ranked voting - Wikipedia

    en.wikipedia.org/wiki/Ranked_voting

    Plurality voting is the most common voting system, and has been in widespread use since the earliest democracies.As plurality voting has exhibited weaknesses from its start, especially as soon as a third party joins the race, some individuals turned to transferable votes (facilitated by contingent ranked ballots) to reduce the incidence of wasted votes and unrepresentative election results.

  3. United States order of precedence - Wikipedia

    en.wikipedia.org/wiki/United_States_order_of...

    The United States order of precedence is an advisory document maintained by the Ceremonials Division of the Office of the Chief of Protocol of the United States which lists the ceremonial order, or relative preeminence, for domestic and foreign government officials (military and civilian) at diplomatic, ceremonial, and social events within the United States and abroad.

  4. List of countries by Human Development Index - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_Human...

    The indicators are used to create a health index, an education index and an income index, each with a value between 0 and 1. The geometric mean of the three indices—that is, the cube root of the product of the indices—is the human development index. A value above 0.800 is classified as very high, between 0.700 and 0.799 as high, 0.550 to 0. ...

  5. Ranked pairs - Wikipedia

    en.wikipedia.org/wiki/Ranked_pairs

    Ranked Pairs (RP), also known as the Tideman method, is a tournament-style system of ranked voting first proposed by Nicolaus Tideman in 1987. [ 1 ] [ 2 ] If there is a candidate who is preferred over the other candidates, when compared in turn with each of the others, the ranked-pairs procedure guarantees that candidate will win.

  6. Ranking (statistics) - Wikipedia

    en.wikipedia.org/wiki/Ranking_(statistics)

    In statistics, ranking is the data transformation in which numerical or ordinal values are replaced by their rank when the data are sorted.. For example, if the numerical data 3.4, 5.1, 2.6, 7.3 are observed, the ranks of these data items would be 2, 3, 1 and 4 respectively.

  7. PageRank - Wikipedia

    en.wikipedia.org/wiki/PageRank

    PageRank (PR) is an algorithm used by Google Search to rank web pages in their search engine results. It is named after both the term "web page" and co-founder Larry Page . PageRank is a way of measuring the importance of website pages.

  8. Chess rating system - Wikipedia

    en.wikipedia.org/wiki/Chess_rating_system

    The authors used the program Crafty and argued that even a lower-ranked program (Elo around 2700) could identify good players. [19] In their follow-up study, they used Rybka 3 to estimate chess player ratings. [20] In 2017, Jean-Marc Alliot compared players using Stockfish 6 with an ELO rating around 3300, well above top human players. [21]

  9. Ranking - Wikipedia

    en.wikipedia.org/wiki/Ranking

    Items that compare equal receive the same ranking number, which is the mean of what they would have under ordinal rankings; equivalently, the ranking number of 1 plus the number of items ranked above it plus half the number of items equal to it. This strategy has the property that the sum of the ranking numbers is the same as under ordinal ranking.