trombonechamp

5 ms·

1.
by trombonechamp 14d ago
Is there a reason besides performance that maintain_order=False by default? I ask because polars is used in many scientific data analysis pipelines, and non-deterministic behaviour is a well-documented source of bugs in scientific computin
2.
by trombonechamp 2y ago
Here is a bit more realistic model of the riffle shuffle. These results show that you need between 3 to 8 riffle shuffles, depending on your skill. Notably, the number of needed shuffles actually does get lower as you get better, i.e., le
3.
by trombonechamp 3y ago
This is something a bit different, the effect in the paper comes from the eigenvectors of the data matrix. I'm no expert on kernel density estimation, but since it is basically just convolution, I would guess the effect you are descri
4.
by trombonechamp 3y ago
Sorry, I didn't have funding to pay the open access fees. The published version is very similar to the preprint: https://www.biorxiv.org/content/10.1101/2023.06.20.545619v1 Alternatively, if you want the fu
5.
by trombonechamp 3y ago
Oh wow, didn't expect to see my paper here. Happy to answer any questions!
6.
by trombonechamp 3y ago
Looks like these are just phantom oscillations, a statistical artifact of doing SVD/PCA on smooth data: https://www.biorxiv.org/content/10.1101/2023.06.20.545619v1 You get the same patterns in music: https:&
7.
by trombonechamp 3y ago
Colemak and Rulemak work nicely together.
8.
by trombonechamp 3y ago
I would be curious to hear more about your dad's opera.
9.
by trombonechamp 4y ago
Is this the mattl I think it is? If so, hi!
10.
by trombonechamp 4y ago
Do people contact you?
11.
by trombonechamp 4y ago
Maybe a nitpick, but Aaron Swartz was probably quoting Richard Hamming: And I started asking, "What are the important problems of your field?" And after a week or so, "What important problems are you working on?" And af
12.
by trombonechamp 4y ago
I knew it had to be him when you said Sutton and Barto. Yeah, I think we just missed each other since your name sounds familiar.
13.
by trombonechamp 4y ago
Sounds like the classic 4th Floor SHM committee
14.
by trombonechamp 4y ago
I did my PhD on this topic. One classic result from biophysics is that, if all of your decisions have a fixed level of difficulty, then what the author suggests is (mathematically) proven to be suboptimal: if a decision feels more difficult
15.
by trombonechamp 4y ago
It is definitely not true. One of the many trivial examples is that Betz cells only appear in motor cortex.
16.
by trombonechamp 4y ago
The name "Darktable" is a play on Adobe Lightroom, since "lightroom" is a combination of "light table" and "darkroom", both concepts from film photography.
17.
by trombonechamp 4y ago
36 hours too late for me - I deleted my 14+ year old GSuite account yesterday morning. Oh well, Fastmail seems great so far.
18.
by trombonechamp 4y ago
That is not what the term "autocorrelation" means. Autocorrelation is the correlation of a vector/function with a shifted copy of itself.
19.
by trombonechamp 4y ago
FYI, similar technology is already mature and commercially available, e.g., through Inscopix (no affiliation): https://www.inscopix.com/nvista Looks like the innovation here is getting reliable and lightweight two-photon r
20.
by trombonechamp 5y ago
Once I needed a single LAPACK function (tridiagonal matrix multiplication) in a C Python extension. I spent an eternity trying to link to LAPACK reliably across platforms until giving up and deciding to implement it myself. My implementati
21.
by trombonechamp 5y ago
Or you can just do this: https://github.com/bhargavchippada/forceatlas2/commit/7438e2...
22.
by trombonechamp 5y ago
Oh wow, this is a great idea. How do you deal with the lossy compression? There must be a lossless codec which uses the redundancy better than deflate?
23.
by trombonechamp 5y ago
Disclaimer: georgewfraser is my academic cousin. Neuroscience research is huge and moving fast. Researchers have trouble keeping up with the bleeding edge in their sub-sub-field, let alone neuroscience as a whole. Conferences are one majo
24.
by trombonechamp 5y ago
"Surprise", or rather "specific surprise", is actually a technical term in information theory, e.g., see: https://iopscience.iop.org/article/10.1088/0954-898X/10/4/30... This doe
25.
by trombonechamp 5y ago
> One of the major reasons I hold the medical and bio community is such low esteem - they don't know what they don't know yet act as if they do. On one hand, this is due to poor science journalism. The media loves nutritional
26.
by trombonechamp 5y ago
There are ways we can measure perseveration in the lab, and so yes, it can be higher or lower in different people. If you want to look into it more, a popular way to measure it is the Wisconsin Card Sort Test (WCST), or the version for chi
27.
by trombonechamp 5y ago
My PhD was (partially) on this. The inability to inhibit actions when facts change on a short timescale (sub-second) is thought to be biological. According to the most widely accepted theory, think of the brain as having a slow system and
28.
by trombonechamp 5y ago
Glad you like Paranoid Scientist, and thanks for the link to your project! Yes, you're right that it only works on immutable data types. At first I had implemented something which copies the object, but this used way too much ram and
29.
by trombonechamp 5y ago
I love this. I think people often underestimate the value of dynamic runtime checks. For certain applications, e.g. many types of scientific/exploratory software, dynamic checks and static checkcs have nearly identical utility. But
30.
by trombonechamp 5y ago
In case anyone else wants to know how the Gaussian process is animated, here are the two links provided in the code: https://math.stackexchange.com/a/1930880/901583 http://mlss.tuebingen.mpg.de/201

More ›