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omrjml

HN member
Joined
Fri, Mar 30, 2018, 8:50 PM UTC
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128
Public activity
35 items

About omrjml

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Recent public activity

  1. comment
    Comment #34147693

    This sounds interesting. Would you mind sharing how exactly you have this setup?

  2. comment
    Comment #31213983

    Of course sine can appear in the solution for dynamical systems but the function itself is not dynamical. When evaluating sin(x) you do not need to know about the previous state.

  3. comment
    Comment #31213941

    Edit: should not be approximated

  4. comment
    Comment #31213905

    Periodic function like sin(x) are not a dynamical system so its previous state does not determine the current state. So it should be approximated in that way.

  5. comment
    Comment #28508819

    Not MLP, but PySindy[0] might be a way to find a closed form solution. A simple MLP may not be best way to achieve what are you are after. [0] https://github.com/dynamicslab/pysind…

  6. comment
    Comment #28504438

    This does not appear to be the usual approach of training the neural network on tons of data from the physics simulation. Instead they use the actual physics equations to form the …

  7. comment
    Comment #28160733

    Modern use for it: https://www.newscientist.com/article/2277794-century-old-wat...

  8. comment
    Comment #28019193

    That really resonated with me. I basically stopped using Twitter because of the reasons you outlined here. This tool, however, might make Twitter useful again for me!

  9. story
  10. comment
    Comment #27301759

    From the actual journal article: "Three further points are relevant to the question of whether the model-observed differences in Figs. 10A-C are mainly due to underestimated observ…

  11. comment
    Comment #27225630

    The radiation is not pointed in the same direction as jets like a laser. There is bulk motion of the plasma in a given direction, but the radiation is emitted from particles that a…

  12. comment
    Comment #27224374

    There has been lost of theories to explain how jets from black hole systems form. New observations of light polarization from M87 jet show twisting magnetic field lines which sugge…

  13. comment
    Comment #27224234

    That's just one of the jets. In fact, I think only one side is observable as it pointed close to our direction, making the other side very difficult to observe.

  14. comment
    Comment #27199489

    Here is a little explanation from TF quantum website. https://www.tensorflow.org/quantum/concepts

  15. story
  16. comment
    Comment #26991434

    Not all vaccines work the same way and it is not obvious what the long term impact of such a "flu pill" would be on our immune system. For example, I would like to know what would …

  17. comment
    Comment #26979522

    That's true, I keep forgetting about https://lfortran.org/ Unfortunately in my experience the people I know who almost exclusively code in fortran are not really interested in jupy…

  18. comment
    Comment #26978964

    It depends on what you are doing. If it is numerical work with matrix operations, then Fortran is fast and pretty intuitive. Some of the annoyances come from dealing with legacy co…

  19. comment
    Comment #26952774

    I am all for vaccines for really dangerous diseases, but we also need to get ill to keep our immune system active and healthy. For example, there are links between being in too cle…

  20. comment
    Comment #26365770

    Regarding dynamical systems, Neural ODEs hold promise as they are more analogous to the numerical solvers. I think with any dynamical system, purely data driven approach can be pro…

  21. comment
    Comment #26283468

    There are some complex dynamics that take place when mass transfer is happening. In these systems this is via Roche Lobe overflow (1) which depending on the masses of the objects c…

  22. comment
    Comment #26274540

    Yes, they would gain mass from feeding but not get 40% bigger while still in that binary configuration. So it seems these BHs start out bigger than previously assumed.

  23. story
  24. comment
    Comment #24988089

    The problem here are the writers, not the readers. Most people are just not good writers and good at communicating complex ideas clearly. But the obsession with publishing research…

  25. comment
    Comment #23955223

    Thanks for the pointers there. You are right, that list is even worse. I'm just finding Medium particularly annoying if I search for anything related to machine learning or data sc…