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fermatslibrary's profile
Fermat's Library
Fermat's Library
Fermat's Library
@fermatslibrary

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Fermat's Library

@fermatslibrary

A platform for illuminating academic papers. We publish an annotated paper every week. Our chrome extension for arXiv: https://fermatslibrary.com/librarian 

fermatslibrary.com
Joined September 2015

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    Fermat's Library‏ @fermatslibrary 25 Jan 2018
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    The Von Neumann Randomness Extractor: How do you construct an unbiased coin from a biased one?pic.twitter.com/u2EVm5PdPb

    6:09 AM - 25 Jan 2018
    • 722 Retweets
    • 1,966 Likes
    • Josh Hanson Oliver Zeigermann Bharath Guvvala Amit Sharma Jaseem Abid 🦀 Thibaut Rommens molotov.bliss (B00MER) m. Sakib Shadman Sibgat
    24 replies 722 retweets 1,966 likes
      1. New conversation
      2. Seeker‏ @SevenPolaris 25 Jan 2018
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        Replying to @fermatslibrary

        Real life is rarely fair and simple. It's intricate, quantum mechanical and like a biased coin.

        1 reply 1 retweet 4 likes
      3. Andrew Doull‏ @andrewdoull 25 Jan 2018
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        Replying to @SevenPolaris @fermatslibrary

        And yet you can understand huge parts of it using just maths. Isn’t that amazing?

        1 reply 0 retweets 2 likes
      4. 1 more reply
      1. Peter Vee‏ @PeterVeep 25 Jan 2018
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        Replying to @fermatslibrary

        And you don’t even need to know the value of a or b!

        0 replies 0 retweets 12 likes
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      1. New conversation
      2. U1 Richtung Uhlandstraße‏ @1cc104b1 25 Jan 2018
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        Replying to @fermatslibrary

        Can you do this for biased dice as well?

        1 reply 0 retweets 3 likes
      3. Hugo Duprat (bloqué chez moi since 13/03)‏ @req__ 25 Jan 2018
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        Replying to @1cc104b1 @fermatslibrary

        You can probably do it by picking six combinations of faces that are different, e.g. 2-1-3-4-6-5, 1-2-3-4-5-6, 6-1-4-2-5-3 etc. They all have the same probability P(1)P(2)P(3)P(4)P(5)P(6).

        1 reply 0 retweets 8 likes
      4. 1 more reply
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      2. Peter Stuart Lakanen‏ @lakanen 25 Jan 2018
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        Replying to @fermatslibrary

        Couldn't this logic/methodology be used to prove that some non-random number generators are random?

        1 reply 0 retweets 1 like
      3. Peter Stuart Lakanen‏ @lakanen 25 Jan 2018
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        Replying to @lakanen @fermatslibrary

        Perhaps better to word it as: Couldn't this trick be used to construct a random number generator from some non-random number generators?

        1 reply 0 retweets 0 likes
      4. 4 more replies
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      2. Pier‏ @PierDonini 25 Jan 2018
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        Replying to @fermatslibrary @cryptopathe

        Really ? #bruteforcepic.twitter.com/My4aGoAipW

        2 replies 0 retweets 1 like
      3. Favourite Text Editor‏ @sjjh 25 Jan 2018
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        Replying to @PierDonini @fermatslibrary @cryptopathe

        I haven't tried the code but my first thought is to print the values to stymie optimisation

        1 reply 0 retweets 0 likes
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