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    CompSci Weekend SuperThread (April 20, 2018) Computer Science

    April 20, 2018

    CompSci Weekend SuperThread (April 20, 2018) Computer Science

    CompSci Weekend SuperThread (April 20, 2018)

    Posted: 19 Apr 2018 06:06 PM PDT

    /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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    Is there a theory regarding the abstraction of all data types into a common interface?

    Posted: 19 Apr 2018 06:09 AM PDT

    It occurred to me that all the interfaces to retrieving data we use today are analogous to a (python) dictionary. For example, an array ([a,b,c,d]) can be thought of as a dictionary with unsigned integers as keys ({0: a, 1: b, 2: c, 3: d}), and a set ({a,b,c,d}) as a dictionary whose values are all empty null objects ({a: {}, b: {}, c: {}, d: {}}, I'm talking about interpreting the data, not about how to store it). I was thinking this analogy could probably be extended to accessing data from databases as well. Is there any material I can read on this topic? Are there any programming languages or libraries that work with this type of abstraction?

    submitted by /u/exempll
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    Question about sorting vizualisation

    Posted: 20 Apr 2018 03:25 AM PDT

    I wanna simulate how bubble sort works on an unsorted pixel array in p5 js and it just doesnt work.

    The way i wanna do it is this: I make a random mashup of pixels which gives me an unsorted pixel array. Then I sort it via bubble sort. Issue is i dont see the animation. Anyone help ?

    submitted by /u/hunter1234566
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    Is it possible to self teach oneself to transition into software engineering in one year?

    Posted: 19 Apr 2018 07:48 PM PDT

    I majored in ECE. I took some AI and machine learning course, know basic programming and algorithms, but never formally taken a systems or algorithms course. I'm in a hardware focused job now but I want to get into software engineering a year from now.

    Can someone give me a plan? Including good sources online that I can use?

    I plan to focus on Python and C++ as my languages.

    Thanks

    submitted by /u/engineheat
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    Paper: Category Theory Centric Systems Science and Software Systems Engineering

    Posted: 20 Apr 2018 02:14 AM PDT

    Lessons learned building resilience in Distributed systems at Scale

    Posted: 20 Apr 2018 01:08 AM PDT

    Calculating Relative Recall

    Posted: 19 Apr 2018 11:35 AM PDT

    When calculating relative recall in information retrieval using TREC and 'K' pooling, does the total relevant documents reflect relevant documents from all participating systems per query or is it all the queries?

    And does this approach not invalidate recall calculations, say I have the top 50 documents between two systems but collectively there are 75 relevant documents, then irrespective of how good either system is they will never be able to reach 100% recall?

    submitted by /u/CappaGino
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