Gradient

The canonical deep learning approach for learning requires computing a gradient term at each layer by back-propagating the error signal from the output towards each learnable parameter. Given the stacked structure of neural networks, where each layer builds on the representation of the layer below, this approach leads to hierarchical representations. More abstract features live on the top layers of the model, while…

Gradient's advanced window unit can heat and cool 500 square feet of your home, and it doesn't require any electrical work.

The first 'negative triangularity' nuclear reactor has achieved first plasma. What else will it achieve?

Clare Grey, Royal Society Research Professor and the Geoffrey Moorhouse-Gibson Professor of Chemistry at Cambridge University, delivered the 2024 Dresselhaus Lecture at MIT on understanding battery function.

Transformers have had tremendous impact for several sequence related tasks, largely due to their ability to retrieve from any part of the sequence via softmax based dot-product attention. This mechanism plays a crucial role in Transformer's performance. We analyze the gradients backpropagated through the softmax operation in the attention mechanism and observe that these gradients can often be small. This poor…

Thanks to a mechanochemically engineered combination of the liquid metal alloy Galinstan and ceramic aluminum nitride, this thermal interface material, or TIM, outperformed the best commercial liquid...

A new technique enables makers to finely tune the color, shade, and texture of 3D-printed objects using only one material. The method is faster and uses less material than other approaches.

ZrC has drawn wide attention as an anti-ablation coating material for lightweight C/C composites but is limited by the produced porous and loose ZrO2 film. To address this issue, the second phase is introduced to improve the densification of the formed Zr-X-O film. Such as ZrC-SiC/TaC coating, the produced low-melting-point oxides, SiO2 (Tm=1650 °C), Ta2O5 (Tm=1800 °C) and Zr6Ta2O17 (Tm=1900 °C), helped to form a…

Article URL: https://core.ac.uk/works/8439118 Comments URL: https://news.ycombinator.com/item?id=40330933 Points: 1 # Comments: 0

It's so much older than we thought.

The gentle flow of warm fluids could have given pre-life chemistry a boost.

What two decades of research taught us about sparse language models...

Porous materials are essential for many chemical processes, such as light harvesting, adsorption, catalysis, energy transfer, and even new technologies for electronic materials. Therefore, many efforts have been made to control the porosity of different manufactured materials.

It's not about particle-antiparticle pairs falling into or escaping from a black hole. A deeper explanation alters our view of reality.

This groundbreaking method holds the potential to swiftly produce cost-effective yet highly accurate tools for detecting a wide range of diseases.

Down on the ground, death equals stillness—but not in space. Abandoned satellites are prone to tumble in unpredictable ways, and an ESA project with the Astronomical Institute of the University of Bern sought to better understand this behavior.

Frequency-domain blue noise generator

We present Direct Reward Fine-Tuning (DRaFT), a simple and effective method for fine-tuning diffusion models to maximize differentiable reward functions, such as scores from human preference models. We first show that it is possible to backpropagate the reward function gradient through the full sampling procedure, and that doing so achieves strong performance on a variety of rewards, outperforming reinforcement…

A chain reaction similar to how some eels generate electricity could be used in a novel biomedical way to stimulate cells in the human body, researchers at the University of Oxford said.

Article URL: https://www.cambridgeclarion.org/70.html Comments URL: https://news.ycombinator.com/item?id=37204549 Points: 2 # Comments: 0