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    Felt like doing a portrait of one of our founding fathers Computer Science

    October 11, 2020

    Felt like doing a portrait of one of our founding fathers Computer Science

    Felt like doing a portrait of one of our founding fathers

    Posted: 10 Oct 2020 06:17 PM PDT

    Learn How to Deploy Real Time Machine Learning at Scale using Sklearn, SpaCy, Kafka and Seldon Core (Article and Video)

    Posted: 10 Oct 2020 06:47 AM PDT

    One of the most amazing books I’ve read on history of Computing. Highly recommend it. Are there other books just like this one ? I would love to read them. Cheers.

    Posted: 10 Oct 2020 11:07 PM PDT

    How long would it take you to learn AI and ML, to the point where you start understanding how these things work, and start applying it to common things, like an extension?

    Posted: 11 Oct 2020 01:42 AM PDT

    Hello. I would like to know How long would it take to effetely learn AI and ML (I don't even know the difference from the two), to the point I can understand how those things works, and what they do, and then learn how to apply them into things?

    submitted by /u/crepuscopoli
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    How can I detect lost of precision due to rounding in both floating point addition and multiplication?

    Posted: 10 Oct 2020 11:28 AM PDT

    From Computer Systems: a Programmer's Perspective:

    With single-precision floating point

    • the expression (3.14+1e10)-1e10 evaluates to 0.0: the value 3.14 is lost due to rounding.

    • the expression (1e20*1e20)*1e-20 evaluates to +∞ , while 1e20*(1e20*1e-20) evaluates to 1e20.

    Questions:

    • How can I detect lost of precision due to rounding in both floating point addition and multiplication?

    • What is the relation and difference between underflow and the problem that I described? Is underflow only a special case of lost of precision due to rounding, where a result is rounded to zero?

    Thanks.

    submitted by /u/timlee126
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    Is teachyourselfcs good and if yes what are the prerequisites exactly?

    Posted: 10 Oct 2020 09:43 AM PDT

    I am interested in CS (mostly AI and cybersecurity/hacking) and have stumbled upon the website teachyourselfcs.com which looks interesting. However, it seems there are a few prerequisites and I am not sure if I should start with TYCS yet.

    I know Python basics and have mostly used it to do problems on sites such as Codewars. Do you think this is enough to start with TYCS? Also, do you think it is a good resource for learning CS or do you know anything that you think is better?

    Thanks

    submitted by /u/computer_man789
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    Computer Science Discord Server

    Posted: 10 Oct 2020 09:25 AM PDT

    Hello Computer Science friends, if any of you guys are interested in joining a Comp Sci Discord Networking Community for discussion, JOB SEARCH, ideas, studying, and industrial networking, this is the link, where you could discuss C++, Machine Learning, Data Science, AI, and Python, we have 8100+ users This is the link, you can join with your browser.

    https://discord.com/invite/KRZwxzg

    Once you entered please type

    ?rank Computer Science

    submitted by /u/Heinse
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    Could a unikernel-hypervisor deployed on bare-metal itself hypothetically host other unikernel-guests, and is this desirable?

    Posted: 10 Oct 2020 04:53 PM PDT

    Hypervisors such as Xen can host unikernels, but what I am asking iis f it's feasible and/or a good idea to go through a 'turtles all the way down' road, by not needing to install the hypervisor on say Linux.

    I'm looking forward to hearing your opinions!

    submitted by /u/5alpha-reductase
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    Is `#define INT_MIN 0x80000000` correct?

    Posted: 10 Oct 2020 03:13 PM PDT

    In Computer Systems: a Programmer's Perspective:

    Writing TMin in C In Figure 2.19 and in Problem 2.21, we carefully wrote the value of TMin32 as -2,147,483,647-1. Why not simply write it as either -2,147,483,648 or 0x80000000? Looking at the C header file limits.h, we see that they use a similar method as we have to write TMin32 and TMax32:

    /* Minimum and maximum values a 'signed int' can hold. */ #define INT_MAX 2147483647 #define INT_MIN (-INT_MAX - 1)

    Unfortunately, a curious interaction between the asymmetry of the two's-complement representation and the conversion rules of C forces us to write TMin32 in this unusual way. Although understanding this issue requires us to delve into one of the murkier corners of the C language standards, it will help us appreciate some of the subtleties of integer data types and representations.

    0x80000000 is a hexadecimal notation, and is in the range of signed int, isn't it? (How do you tell if an integer integral is signed or unsigned? Isn't it that an integer literal without any suffix by default is a signed integer? So 0X80000000 is signed? It is in the range of signed, because it is the smallest integer in the signed range.)

    Should #define INT_MIN 0x80000000 be okay, while the book says otherwise?

    Thanks.

    submitted by /u/timlee126
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    Data Structures for Compression?

    Posted: 10 Oct 2020 09:03 AM PDT

    So we have to make a project for our Data structure course. I am thinking of making/implementing a conpression algorithm. I know huffman coding uses Trees but this project is already taken. So I want to implement some other compression algorithm What compression algorithm uses DS as its implementation? What Data structures are used for that specific algorithm?

    submitted by /u/mib47225
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