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Archive for the ‘mathematics’ category: Page 19

Apr 30, 2024

Something Strange Happens When You Follow Einstein’s Math

Posted by in categories: cosmology, mathematics

Black holes, white holes, wormholes, anti-universes, and all kinds of awesome relativity weirdness:


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Apr 30, 2024

Meaningless fillers enable complex thinking in large language models

Posted by in categories: mathematics, robotics/AI

1/ Researchers have found that AI models can solve complex tasks like “3SUM” by using simple dots like “…” instead of sentences.


Researchers have found that specifically trained LLMs can solve complex problems just as well using dots like “…” instead of full sentences. This could make it harder to control what’s happening in these models.

The researchers trained Llama language models to solve a difficult math problem called “3SUM”, where the model has to find three numbers that add up to zero.

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Apr 28, 2024

The Math Behind Recurrent Neural Networks

Posted by in categories: mathematics, robotics/AI

Dive into RNNs, the backbone of time series, understand their mathematics, implement them from scratch, and explore their applications.

Apr 28, 2024

Scientists Uncover Surprising Reversal in Quantum Systems

Posted by in categories: mathematics, particle physics, quantum physics

Generally, it’s advised not to compare apples to oranges. However, in the field of topology, a branch of mathematics, this comparison is necessary. Apples and oranges, it turns out, are said to be topologically the same since they both lack a hole – in contrast to doughnuts or coffee cups, for instance, which both have one (the handle in the case of the cup) and, hence, are topologically equal.

In a more abstract way, quantum systems in physics can also have a specific apple or doughnut topology, which manifests itself in the energy states and motion of particles. Researchers are very interested in such systems as their topology makes them robust against disorder and other disturbing influences, which are always present in natural physical systems.

Things get particularly interesting if, in addition, the particles in such a system interact, meaning that they attract or repel each other, like electrons in solids. Studying topology and interactions together in solids, however, is extremely difficult. A team of researchers at ETH led by Tilman Esslinger has now managed to detect topological effects in an artificial solid, in which the interactions can be switched on or off using magnetic fields. Their results, which have just been published in the scientific journal Science, could be used in quantum technologies in the future.

Apr 28, 2024

CATL’s new LFP battery promises 600-kms range in 10-min charge

Posted by in category: mathematics

If you do the math, it means CATL is offering an impressive charging rate of roughly 1 km/sec in a 10 minute quick charge.

Apr 25, 2024

The universe’s repeated rebirth and dying, controversial claim by Nobel Prize Winner

Posted by in categories: cosmology, mathematics, physics

Sir Roger Penrose proposes that the universe undergoes repeated cycles of expansion, decay, and rebirth, challenging the traditional notion of a singular Big Bang origin.


Renowned physicist Sir Roger Penrose, hailing from the University of Oxford and a co-recipient of the 2020 Nobel Prize in Physics, posits a fascinating theory regarding the universe’s cyclical nature. Contrary to prevailing notions, Penrose suggests that our universe has undergone numerous Big Bang events, with another impending in the future.

Penrose’s Nobel-winning contributions revolve around advancing mathematical frameworks that not only validate but also extend Albert Einstein’s general theory of relativity. Moreover, his investigations into black holes elucidated the phenomenon of gravitational collapse, wherein excessively dense entities converge into singularities, infinitely massive points.

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Apr 25, 2024

What Was There Before the Big Bang? 3 Good Hypotheses!

Posted by in categories: cosmology, mathematics, security

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Apr 25, 2024

Institute for Extinction Risk Shuts Down: What We Know

Posted by in categories: computing, existential risks, mathematics

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The Future of Humanity Institute announced last week that they have shut down. Located at the University of Oxford in the UK prior to its demise, the institute was one of the few places worldwide studying the risk of human extinction and a few other controversial research areas. Let’s have a look at the events leading to the institute’s closure.

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Apr 22, 2024

Mathematicians Marvel at ‘Crazy’ Cuts Through Four Dimensions

Posted by in category: mathematics

Mathematicians have the tools to explore worlds of 2, 3 and 5+ dimensions. But the fourth dimension remains mysterious and elusive. Topologists are trying to change that, one problem at a time.


Topologists prove two new results that bring some order to the confoundingly difficult study of four-dimensional shapes.

Apr 19, 2024

Selective language modeling: New method allows for better models with less data

Posted by in categories: mathematics, transportation

👉 Researchers have developed a method called Selective Language Modeling (SLM), which trains language models more efficiently by focusing on the most relevant tokens.


Researchers introduce a new method called “Selective Language Modeling” that trains language models more efficiently by focusing on the most relevant tokens.

The method leads to significant performance improvements in mathematical tasks, according to a new paper from researchers at Microsoft, Xiamen University, and Tsinghua University. Instead of considering all tokens in a text corpus equally during training as before, Selective Language Modeling (SLM) focuses specifically on the most relevant tokens.

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