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    CompSci Weekend SuperThread (January 31, 2020) Computer Science

    CompSci Weekend SuperThread (January 31, 2020) Computer Science


    CompSci Weekend SuperThread (January 31, 2020)

    Posted: 30 Jan 2020 05:04 PM PST

    /r/compsci strives to be the best online community for computer scientists. We moderate posts to keep things on topic.

    This Weekend SuperThread provides a discussion area for posts that might be off-topic normally. Anything Goes: post your questions, ideas, requests for help, musings, or whatever comes to mind as comments in this thread.

    Pointers

    • If you're looking to answer questions, sort by new comments.
    • If you're looking for answers, sort by top comment.
    • Upvote a question you've answered for visibility.
    • Downvoting is discouraged. Save it for discourteous content only.

    Caveats

    • It's not truly "Anything Goes". Please follow Reddiquette and use common sense.
    • Homework help questions are discouraged.
    submitted by /u/AutoModerator
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    Scientists Use DL and Other Tools for Wuhan Coronavirus Host and Infectivity Prediction

    Posted: 30 Jan 2020 03:08 PM PST

    Background Information: The current outbreak of novel coronavirus (2019-nCoV) was first reported from Wuhan, China, on 31 December 2019. Global: 7818 confirmed cases; China: 7736 confirmed; 12167 suspected; 1370 severe; 170 deaths. (WHO Situation Report Released on 1/30/2020)

    A new study suggests human-to-human transmission of the 2019-nCoV may have started as early as mid December and predicted the R0 to be about 2.2. The article here mentions multiple related studies, one uses deep learning to compare infectivity patterns of nCoV to other viruses — hopefully to help identify the host, but what else can DL do in this kind of analysis, any thoughts?

    Read more Scientists Use DL and Other Tools for Wuhan 2019-nCoV Host and Infectivity Prediction, as well as the host prediction paper.

    submitted by /u/Yuqing7
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    ELI5: What is the difference between a forward and backwards proxy?

    Posted: 30 Jan 2020 10:51 PM PST

    I understand that a proxy sits between you and the place you're trying to get data from. You send a request to the proxy - the proxy will fetch the data from the destination that has it and gives it back to me

    From reading about forward and backwards proxies, I still don't get the difference between the two.

    Can someone give an ELI5 explanation with an example of the differences between the two? When would you want to use one over the other?

    submitted by /u/Truetree9999
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    What is it about CS that you find most interesting and appealing?

    Posted: 30 Jan 2020 02:13 PM PST

    Some examples would be the field of AI, developing user friendly software...etc.

    submitted by /u/_findmenow
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    Coder Cup problem #5: Packing spheres of decreasing volume into a pipe.

    Posted: 30 Jan 2020 07:57 AM PST

    Quick question about some boolean discrete math

    Posted: 30 Jan 2020 11:04 AM PST

    I am studying discrete math for computer science and am confused why ∀x∃yS(x, y, 0) is true, but ∃x∀yS(x, y, 0) is false where S(x, y, z) = x + y = z? I understand that the first statement says that for all x there exists a y that makes x + y = 0, i.e. y would just be (-x), but why can't you apply this same logic to the second statement, such that x would be (-y)? Any pointers would be much appreciated.

    Thank you!

    submitted by /u/underscore_junior
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    OpenAI→PyTorch

    Posted: 30 Jan 2020 10:29 AM PST

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