Maxima and Minima

Mind=blown.

Physicists with the ATLAS Collaboration at CERN's Large Hadron Collider have announced the first observation of VVZ production -- a rare combination of three massive vector bosons.

I wrote this blog back in 2023 but since then I became a frequent lurker on HN and decided to repost the blog here. For me, writing it was about connecting the dots between dynamic optimization techniques I've studied as an economist and the more general search algorithms studied in CS. Comments URL: https://news.ycombinator.com/item?id=43079952 Points: 1 # Comments: 0

Word2vec is a pervasive tool for learning word embeddings. Its success, however, is mostly due to particular architecture choices. Transferring these choices to traditional distributional methods makes them competitive with popular word embedding methods.

Physicists with the CMS Collaboration at CERN's Large Hadron Collider have tested whether top quarks adhere to Albert Einstein's special theory of relativity.

Entropy

Adding or removing neutrons from an atomic nucleus leads to changes in the size of the nucleus. This in turn causes tiny changes in the energy levels of the atom's electrons, known as isotope shifts. Scientists can use precision measurements of these energy shifts to measure the radius of the nucleus of an isotope.

Atomic-scale 2D magnets can be polarized to represent binary states — the 1s and 0s of computing data. These can lead to far more dense and energy-efficient components.

A new mathematical technique shows how to build small objects in any dimension that roll like a wheel, expanding our understanding of higher dimensional space

Research by George Mason professor Martin Wiener recently demonstrated that the more memorable an image is, the longer and more accurately its viewers can perceive the passage of time. In a series of experimental studies, participants were more likely to say more memorable images stayed on screen longer, they made that response faster, and they were more consistent about their responses with more memorable images,…

AI is hot, so let's talk about some "classical machine learning" in Haskell with k-means clustering! Let's throw in some dependent types too. There are a bazillion ways of implementing such a simple algorithm, but this is how I'd do it, as someone who develops almost exclusively in Haskell (or functional pure languages) in both personal projects and work. It's not the "right" way or the "best" way, but it's the way…

Scientists all over the world use modeling approaches to understand complex natural systems such as climate systems or neuronal or biochemical networks. A team of researchers has now developed a new mathematical framework that explains, for the first time, a mechanism behind long transient behaviors in complex systems.

Researchers from the Institute for Molecules and Materials at Radboud University, Netherlands, have demonstrated that a complex self-organizing chemical reaction network can perform various computational tasks, such as nonlinear classification and complex dynamics prediction.

Experts have only started to crack the tricky twin prime conjecture

Experts evaluated college readiness and state assessment proficiency, among other factors.

Proximity is key for many quantum phenomena, as interactions between atoms are stronger when the particles are close. In many quantum simulators, scientists arrange atoms as close together as possible to explore exotic states of matter and build new quantum materials.

MIT physicists developed a technique to arrange atoms in much closer proximity than previously possible, down to 50 nanometers. The group plans to use the method to manipulate atoms into configurations that could generate the first purely magnetic quantum gate — a key building block for a new type of quantum computer.

Tunable ultrafast lasers with adjustable parameters, such as wavelength, intensity, pulse width and laser states are desirable as next-generation intelligent light sources. Due to complex nonlinear effects within the ultrafast system, it is challenging for laser state active controlling (LSAC) in ultrafast fiber lasers, especially for passive mode-locking, in a convenient and controllable manner.

New chip design uses photons rather than electrons to perform calculations, and scientists hope to integrate the technology into future graphics cards to train AI.

Rubber trees are essential for natural rubber, and require precise nutrient management. Traditional methods for assessing nutrient levels are expensive and destructive, but near-infrared (NIR) hyperspectral techniques offer a promising nondestructive alternative. Challenges arise with high-dimensional data, leading to biased results from small and imbalanced datasets. Current research focuses on overcoming these…