871 private links
A document by OpenAI on Deep Deterministic Policy Gradient (DDPG), a Q-learning like algorithm that works for continuous action space.
A fast path finding on square grid that exploits of certain properties to avoid scanning unecessary cells. There is a nice interactive visual demo on the webpage.
A simple and fast lossless image compression algorithm that achieves similar compression ratio but significantly faster than png.
An interesting and simple algorithm to blend two images seamlessly.
TL;DR: do not copy-paste the pixel itself, copy-paste the gradient of the pixel, and then solve for the optimal pixel's value subjecting to an energy function, which takes into account the boundary of background image and the gradient of the source image.
More articles on the topic:
A short introduction to the idea behind the LSM tree.
Oversimplified:
- The period of x mod N, x2 mod N, x3 mod N, x4 mod N, … sequence can reveal the factors of the product of two prime numbers.
- The period is very difficult to find for large numbers.
- Quantum Fourier Transform enables the extraction the period in a fast way. (the only part that quantum mechanics involved and I still can't understand how)
A discussion about unconventional data structures and algorithms.
<blockquote>starting point and ending point are</blockquote>
<blockquote>Computation Structures</blockquote>