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    Tuesday, October 6, 2020

    “The joys of teaching.” Is this what they meant? Computer Science

    “The joys of teaching.” Is this what they meant? Computer Science


    “The joys of teaching.” Is this what they meant?

    Posted: 05 Oct 2020 11:25 PM PDT

    I recently left my software engineering career for one in HS education, teaching 11/12th graders. Typically, I lecture a bit, do some problems with them, then give them an assignment to work on their own where they have time to ask me for individual help.

    Strangely, today I had no questions asked, no cries for help, silence. A couple of looks over their shoulders told me they were getting it without me. Fantastic.

    At one random interval I look up, just as one of my students runs her code. I watched her remain silent and simply lift her hand to flip off the output she got, and go back to work.

    I cannot describe how much joy and pride this brought me.

    submitted by /u/Teach2021
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    Alternatives to relaxation of CSPs

    Posted: 06 Oct 2020 03:54 AM PDT

    I'm recently facing a CSP problem and need directions for further research, as I'm only familiar with the basics of Operations Research.

    Assume that we try to solve constraints for a software application deployment plan in scope of an edge computing use case. The deployment constraints could be e.g. hardware limitations of the targets, application dependencies, etc. These constraints can be translated into a LP and be solved. However, I'm interested in the case of unsatisfiable constraints. Hence, we have to change something in the original architecture/network/... in a way so that the LP becomes satisfiable.

    Optimally, the resulting algorithm then yields hints for improvements. E.g. "add new devices with suited hardware should be added" and so on.

    I do know that there are relaxations I could apply. For instance, adding relaxed constraints with larger costs which will only be taken into account if the LP is unsatisfiable otherwise. I'm not sure however, if this is the right solution.

    Another alternative (not yet seen in literature) would be a Prolog implementation where I allow variable mappings in a way so that I know exactly what changes are required. Prolog is very high level and has a very simple syntax and thus, is well suited for code generation. However, I'm not sure if I can add an objective function to be minimized which tries to avoid changes in the original environment.

    I have the feeling that the LP relaxation might be equivalent to the Prolog solution, and if I see it correctly, there exists many good high-level CSP helpers.

    I would be happy if someone with experience could lead me in the right direction. Maybe there are completely other approaches I don't know about, yet.

    submitted by /u/redyar
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    I am a 3rd year bachelors student and I am having a hard time figuring out what to do. I have not managed to get any internships and now I don't know what I can do. Any recommendations, courses, projects, etc will help.

    Posted: 05 Oct 2020 09:55 PM PDT

    This one had me thinking...

    Posted: 05 Oct 2020 10:20 PM PDT

    Systems Software Reasearch is Irrelevant. This is a real issue and should have anyone concerned with computers thinking. It is talking about how there is no innovation and originality in today's work in systems research.

    submitted by /u/c_is_the_real_lang
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    Areas of CompSci relevant to economics

    Posted: 05 Oct 2020 04:02 PM PDT

    Hello everyone,

    I was curious if anyone would be able to tell me what areas of computer science are relevant to the field of economics? Is it largely just using computation power to test economic models and run statistical formulas, or does it go further than that? Is for example AI being implemented in economics-related applications?

    Thanks for your help!

    submitted by /u/lhommedelamaison
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    [R] Google AI Helps Sign Language ‘Take the Floor’ in Video Conferences

    Posted: 05 Oct 2020 01:34 PM PDT

    To enable signers to "take the floor" in such video meetings, a team of researchers from Google, Bar-Ilan University, and the University of Zurich recently developed a sign language detection model for video conferencing applications that can perform real-time identification of a person signing as an active speaker.

    Here is a quick read: Google AI Helps Sign Language 'Take the Floor' in Video Conferences

    Google AI has open-sourced the training code and models for web demo on GitHub. The paper Real-Time Sign Language Detection using Human Pose Estimation is available on the Google Research website. The model will be presented at SLRTP2020 and demoed at ECCV2020.

    submitted by /u/Yuqing7
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    Study Group for Reinforcement Learning

    Posted: 05 Oct 2020 10:17 AM PDT

    I created a discord study group for rl enthusiasts. Discord link: https://discord.gg/98ejKd

    submitted by /u/Same_Championship253
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    My opinion on the x86, Arm, and RISC-V chips (As a HS student)

    Posted: 05 Oct 2020 06:59 PM PDT

    I have been kinda seeing talk about RISC-V and such, and, as a High School Student wanting to learn more about computers, I want to talk about the potentials of each Computer Chip:

    x86 : I see this more for complex tasks, mainly Video Encoding, Server Computing, and Gaming, mainly because companies like Intel and AMD make CPUs thaat do really good at those tasks.

    Arm : I see Arm as being the chip were you need less power for more strength. The Eos Bioreactor by Hypergiant is what I find to be a good example of this.

    RISC-V : I beleive this to be really good for the tasks that need more specific needs, Like AI, Encyption, and Mining Cryptocurrency (like Dogecoin and Bitcoin).

    I really feel interested in all of them, but I don't want to see one of them go away.. so hopefully, this kind of scenario happens where they all focus on seperate things and co-exist basically, because they all have great potential for specific fields, and I really wanna see them flourish together.

    Stay Vibin'
    quarkstuff

    submitted by /u/quarkstuff
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    I am finding a hard time with sub queries in SQL, recommend me some good books to learn SQL subqueries.

    Posted: 05 Oct 2020 06:21 AM PDT

    Zoom Like Program Search

    Posted: 05 Oct 2020 12:16 PM PDT

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