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  2. Log sum inequality - Wikipedia

    en.wikipedia.org/wiki/Log_sum_inequality

    The log sum inequality can be used to prove inequalities in information theory. Gibbs' inequality states that the Kullback-Leibler divergence is non-negative, and equal to zero precisely if its arguments are equal. [3] One proof uses the log sum inequality.

  3. 2020 Summer Olympics medal table - Wikipedia

    en.wikipedia.org/wiki/2020_Summer_Olympics_medal...

    World map showing the medal achievements of each country during the 2020 Summer Olympics. Legend: represents countries that won at least one gold medal. represents countries that won at least one silver medal but no gold medals.

  4. Web portal - Wikipedia

    en.wikipedia.org/wiki/Web_portal

    A web portal is a specially designed website that brings information from diverse sources, like emails, online forums and search engines, together in a uniform way.Usually, each information source gets its dedicated area on the page for displaying information (a portlet); often, the user can configure which ones to display.

  5. Statistics of the COVID-19 pandemic in the United States

    en.wikipedia.org/wiki/Statistics_of_the_COVID-19...

    Weekly confirmed COVID-19 deaths Map of cumulative COVID-19 death rates by US state. [1]The CDC publishes official numbers of COVID-19 cases in the United States. The CDC estimates that, between February 2020 and September 2021, only 1 in 1.3 COVID-19 deaths were attributed to COVID-19. [2]

  6. Dollar sign - Wikipedia

    en.wikipedia.org/wiki/Dollar_sign

    The dollar sign, also known as the peso sign, is a currency symbol consisting of a capital S crossed with one or two vertical strokes ($ or depending on typeface), used to indicate the unit of various currencies around the world, including most currencies denominated "dollar" or "peso".

  7. Computer keyboard - Wikipedia

    en.wikipedia.org/wiki/Computer_keyboard

    A computer keyboard is a peripheral input device modeled after ... such as to switch between multiple login sessions, to terminate a program, or to interrupt a modem ...

  8. Ray J - Wikipedia

    en.wikipedia.org/wiki/Ray_J

    William Ray Norwood Jr. (born January 17, 1981), [1] known professionally as Ray J, is an American R&B singer, songwriter, television presenter, and actor. Born in McComb, Mississippi and raised in Carson, California, he is the younger brother of singer and actress Brandy.

  9. Vadim Krasikov - Wikipedia

    en.wikipedia.org/wiki/Vadim_Krasikov

    Vadim Nikolayevich Krasikov (Russian: Вади́м Никола́евич Кра́сиков, [vɐˈdʲim nʲɪkɐˈɫa(ɪ̯)ɪvʲɪt͡ɕ ˈkrasʲɪkəf]; born 10 August 1965) is a Russian security service hitman who was sentenced to life imprisonment in Germany for the killing of Zelimkhan Khangoshvili in Berlin, Germany on August 23, 2019.