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eutectic

844 karma · joined October 6, 2014

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eutectic··on Peptides: where to begin?
I think the idea is that some short peptides might survive the digestion and make it to the blood stream, but I'm doubtful there's any specific benefit to collagen.
eutectic··on Rivian Unveils Custom Silicon, R2 Lidar Roadmap, and Universal Hands Free
Lidars use pulsed lasers with peak powers up to the kW range.
eutectic··on Why it's so hard to build a jet engine
Silicon carbide fiber reinforced silicon carbide is also being increasingly used.
eutectic··on A dictionary of single-letter variable names
But 'i' is not a car, it is the index of a car.
eutectic··on Einsum for Tensor Manipulation
I like einsum, it's concise and self-explanatory. Way better than multiple lines of nested for loops would be.
eutectic··on Show HN: Vapi – Convince our voice AI to give you the secret code
I got to level 8 by asking in rot13. I think I beat the bonus level too but I can't remember how.
eutectic··on Solving the minimum cut problem for undirected graphs
Also, the problem is to find a global min-cut, which requires all-pairs max flow.
eutectic··on Visualizing Attention, a Transformer's Heart [video]
Different models have different inductive biases. There is no way you could build GPT4 with decision trees.
eutectic··on Low Cost Robot Arm
Is it not possible to compensate for inaccuracy, if you have a sufficiently precise measurement at the hand?
eutectic··on History of Uniform Random Number Generation (2017) [pdf]
Your edit is confusing me. Which variant fails and which variant passes?
eutectic··on History of Uniform Random Number Generation (2017) [pdf]
Here's a variant which gives 64-bit output:

  uint64_t x = 0, w = 1;
  uint64_t msws64(void) {
      x = x * x + (w *= 0xe9acc0f334e93bd5ULL);
      return (x = (x >> 32) | (x << 32)) ^ w;
  }
eutectic··on History of Uniform Random Number Generation (2017) [pdf]
What if you don't truncate? I fell like it might still be OK.
eutectic··on The $25B Eigenvector: The Linear Algebra behind Google (2006)
One important component is adding significant damping, corresponding to a small probability of jumping to a random page. This makes sure that the graph is well connected and the power iteration converges fast.
eutectic··on SymPy: Symbolic Mathematics in Python
I though finite difference differentiation was notoriously unstable.
eutectic··on SymPy: Symbolic Mathematics in Python
I just did this exact thing today, writing a cloth simulator! I wanted to try updating each node position in turn using a Newton step, holding the other nodes fixed.
eutectic··on The seventh most popular easily understood unsolved problem on MathOverflow
John Conway showed that if you generalise the coefficients of the Collatz conjecture then some instances are undecidable. So maybe there is no proof.
eutectic··on Carbon capture tech a 'complete falsehood', says Fortescue Metals chairman
I would say the second law is more relevant; if you want to reduce entropy in one part of a system, you have to expend an equivalent or greater amount of free energy elsewhere.
eutectic··on Kalman Filter Explained Simply
Well, the derivations are different, and your comment seemed to imply that the maximum likelihood perspective was easier to understand.
eutectic··on Kalman Filter Explained Simply
Both the Bayesian perspective and the optimization perspectice are legitimate ways of understanding the Kalman filter. I like the Bayesian perspective better.
eutectic··on Balancing Outdoor Risky Play and Injury Prevention in Childhood Development
I think you need to recalibrate your perceptions; the world (including the US) is about as safe as it's ever been. And I don't think hypocritical is the right choice of word anyway.
eutectic··on Heat pump users noticing cheaper bills and warmer homes – study
But demand is lower in the summer, so this shouldn't effect renewable energy requirements.
eutectic··on GPT-4 Can Almost Perfectly Handle Unnatural Scrambled Text
I think even a bigram model would provide enough information.
eutectic··on You have to be educated to be educated (1997)
Also, the parts of science that affect our everyday lives come together to form a coherent picture which explains many different observations. Religions don't have anything like that.
eutectic··on A linear algebra trick for computing Fibonacci numbers fast
The generating function proof is also really beautiful! I think I maybe like it even more than the linear algebra proof.
eutectic··on 4th edition of Physically Based Rendering is now freely available online
How do you deal with materials in a spectral renderer? Use something like a gaussian for each rgb component?
eutectic··on Voronoi Diagram and Delaunay Triangulation in O(nlog(n)) (2020)
I think convex hull is also closely related.
eutectic··on Recent adventures in performance optimization with Rust
Obviously not the point of the post, but this doesn't seem like a very reasonable thing to calculate, statistically speaking.

Also, I wonder if there is some way to use branch-and-bound to look at fewer combinations.

eutectic··on Introduction to Modern Statistics
Maximum Likelihood corresponds to Bayesian statistics with MAP estimation, which is not the typical way to use the posterior.
eutectic··on Cleaning products emit hundreds of hazardous chemicals, new study finds
I find it hard to believe that some calcium ions constitute a health hazard.
eutectic··on Cleaning products emit hundreds of hazardous chemicals, new study finds
Is it actual pollution or just water droplets?
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