Viewing profile — amirhirsch

My experience with lines of credit isn't unique, and I think it's one of the underrated advantages of doing business in the US: we have a sufficiently stable commercial legal syste…

Good luck! One valuable differentiation you could provide is a line of credit. If you can’t win on price, you can help your customers win on cash-conversion cycle. I’ve been making…

Yea this is the premise behind all the invisible captchas, combined with browser fingerprinting. Same tech is used now to detect distillation rings.

I implemented all of this in hCaptcha 6 years ago, not just to distinguish bot from human but also to recognize the keyboard/mouse behavior of the same person signing up for many a…

Custom FDTD for the optimizer loop, CST for final verification.

It creates pancake beams so you would usually use a separate Rx and Tx orthogonal to each-other to do imaging.

Oh I dunno. I made a mm-wave radar with a Rotman lens using a generative loop between Python, Rhino, and EM simulation. Pretty sure AI could cook that up.

(Linked VCU128 digital radar was cool but even cooler is using them as digital array beamformers and sending RDMA over fiber into a quad A100s nvlinked to do the whole radar DSP pi…

It was designed for automotive as a replacement for LiDAR, also useful for finding metal FOD on runways, or concealed weapons and I suppose also liquids on travelers walking in an …

32 port Tx (vertical pancake beams) x 16 port Rx (horizontal pancake), something like 60 by 30 degrees. the entire thing used FPGA transceivers as one-bit DAC/ADC, Complementary Go…

Very cool! Six years ago I worked on a mmWave (76-81GHz) imaging radar with a Rotman lens Tx and Rx. Designed as a LiDAR replacement, but we could see pipes in walls, or detect con…

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https://en.wikipedia.org/wiki/Switching_lemma That paper is in the wiki refs but Hastad’s original is from 1986

Yes. There is a beautiful proof of the disjunction between AC0 and NC showing parity cannot be done in AC0 using harmonic analysis of Boolean functions

This is an awesome result. For those unfamiliar: NC is the class of problems which can be solved in polylogarthmic depth with polynomial number of logic gates. It is unproven if NC…

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Don't worry about not grokking quantum computing stuff, neither do any of the people who invest in it as well as many people who work on it. 1. The OP has nothing to do with quantu…

Density is this reply.

Cargo ships powered by the wind, we are living in the future!

I was expecting Beyoncé lyrics

The founder of midjourney is not a software engineer.

Ultrasound is totally harmless, but doctors recommend ALARA ("as low as reasonably achievable"). Average baby is exposed to 50 - 90 minutes of ultrasound over three visits, though …

There are 100M pregnant women right now. If it works for just for the vanity use of seeing your baby grow (forget the medical imaging aspect) and can be as casual and relaxing expe…