omrjml

11 ms·

1.
by omrjml 4y ago
This sounds interesting. Would you mind sharing how exactly you have this setup?
2.
by omrjml 4y ago
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.
by omrjml 4y ago
Edit: should not be approximated
4.
by omrjml 4y ago
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.
by omrjml 5y ago
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/pysindy
6.
by omrjml 5y ago
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 loss function, which is a far more robust way of creating su
7.
by omrjml 5y ago
Modern use for it: https://www.newscientist.com/article/2277794-century-old-wat...
8.
by omrjml 5y ago
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.
Tesla valve could have modern uses(newscientist.com)
3 points by omrjml 5y ago|0 comments
10.
by omrjml 5y ago
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 observed tropospheric temperature trends or to an overestima
11.
by omrjml 5y ago
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 are moving in a different directions within that plasma. So t
12.
by omrjml 5y ago
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 suggest one of the theories might be right. That theory says that
13.
by omrjml 5y ago
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.
by omrjml 5y ago
Here is a little explanation from TF quantum website. https://www.tensorflow.org/quantum/concepts
15.
A Historical Perspective on COBOL (2020)(logicmag.io)
61 points by omrjml 5y ago|38 comments
16.
by omrjml 5y ago
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 be the long term impact on children who do not get
17.
by omrjml 5y ago
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 jupyter notebooks.
18.
by omrjml 5y ago
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 code and mixing it with modern standards.
19.
by omrjml 5y ago
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 clean an environment as a baby and then developing leukaemia. T
20.
by omrjml 6y ago
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 problematic because, as you say, the standard NN architectures
21.
by omrjml 6y ago
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 can become unstable after a large mass transfer. But going ba
22.
by omrjml 6y ago
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.
Automatic Pool Cue(youtube.com)
5 points by omrjml 6y ago|0 comments
24.
by omrjml 6y ago
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 in journal articles format means there are a lot of relucta
25.
by omrjml 6y ago
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 science. It is just full of post after post of people reg
26.
Ask HN: Best way to filter out Medium from Google search
3 points by omrjml 6y ago|2 comments
27.
Implicit neural network representation with Sine activations(vsitzmann.github.io)
1 points by omrjml 6y ago|0 comments
28.
by omrjml 7y ago
I am curious how this would work in the UK. The UK national met service, Met Office, has a free app, but has to show ads (not sure if there is a legal requirement similar to this case). Its biggest competitor is the BBC weather app which is
29.
by omrjml 7y ago
Blazars are just quasars with the jets pointed towards us. Quasars are basically galaxies with active super massive black hole in its centre. Luckily for us, our galaxy has a quiet black hole (quiet meaning it's not feeding like crazy)
30.
by omrjml 7y ago
I have been considering purchasing one of these, but keep getting put off by the security aspects of cloud based cameras i.e. accidental or otherwise vulnerability that allows others to view the videos.

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