Viewing profile — chas

Chaos theory does provide us with a tool here: The Lyapunov exponent[1] and the related Lyapunov time[2]. These allow you to characterize how far into the future you can expect to …

The major ML conferences all have pretty tight page limits, so more expository sentences usually get cut. This also means that papers usually only explain how their work is differe…

I think it’s worthwhile to distinguish between throughput and latency for these sorts of discussions, rather than just talking about performance since scratchpads are usually bette…

I think it’s important to note that you are assuming a gradual increase in activity over time as well as adequate food and rest between sessions. In the limit case things like rhab…

He developed ME/CFS in 2018 without a known cause (to the best of my knowledge).

Jax is a great tool, but it’s really best for training and experimentation. The transformations outlined in this post (amongst others) make it easy to turn simple and straightforwa…

It really depends on what you want in terms of implementation. On one hand, a big chunk of digital logic is about implementing large, high-speed state machines using circuits. On t…

The combination of lazy evaluation and state mutation/side effects can be pretty difficult to reason about. For example, if you have a function that changes a global variable as a …

Funny enough, monoids/semigroups are one of my favorite parts of Haskell and I really miss having an explicit abstraction for them in other languages. A lot of the code I write is …

But lenses as functional references are very common in the Haskell world, whereas the only place I've heard of anamorphisms (unfolds) being referred to as lenses is in this paper. …

While the first author of this paper went on to be heavily involved in Microsoft's Reactive Extensions (among many other things), I think it's better to think of it as making commo…

This is a great paper, but I found it to be very challenging to read when I first ran into it, even though I had some experience programming in Haskell. As a one sentence pitch, th…

Where are the uses of the calculus of variations with neural nets?

This isn’t an accurate description of the possible side-effects. Anti-depressants can cause meaningful side-effects including changes to appetite, difficulty regulating body temper…

A semi-decidable problem is still pretty bad news from a computational perspective, but I agree that it's not the best example of what I was trying to illustrate. I was aiming for …

Excel has the built in MMULT function, but I’m not aware of any built-in support for eigenvalues or eigenvectors. Many people have written such functions though. That said, I would…

And for extra magic, since every vector space has a basis, every linear transform between vector spaces with a finite basis can be represented by a finite matrix ( https://en.m.wik…

For most brushless motors--though not axial flux motors like the one under consideration here--it's much easier to get heat out by passing air axially across the stator. This means…

It sounds like both your work and hobby involve pretty intense coding. If you are coding for 16-18 hours a day, that doesn't leave enough time for sleep, exercise, and socializing.…

Heat dissipation mostly. Square-cubed laws are brutal for getting the heat out.

Folks are certainly working on it from many dimensions, but it’s a pretty hard problem since getting ground truth data involves making and testing materials, which is a very differ…

Spherical linear interpolation. ( https://en.m.wikipedia.org/wiki/Slerp )

If you are not familiar, this is part of a very long-running discussion in the philosophy of mathematics: https://plato.stanford.edu/entries/philosophy-mathematics/#F... (For conte…

I also don't have any direct HFT experience, but I do know that HFT firms hire FPGA designers ( https://www.indeed.com/q-Fpga-Engineer-Trading-jobs.html ) which suggests they reall…