Energy
China Is Leading the World in the Clean Energy Transition. Here's What That Looks Like
China Is Leading the World in the Clean Energy Transition. The country spends like no one else on renewables and has reshaped the global market. Xi Jinping gives a video address at the United Nations Climate Summit. Speaking by video at the UN Climate Summit in New York last week, China's president Xi Jinping laid out his country's climate ambitions. While the stated goals may not have been aggressive as some environmentalists would like, Xi at least reaffirmed China's green commitment.
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You've always wanted a robotic butler, but a Roomba is as close as you're going to get. These are the lowest Roomba prices we have seen this year. We may earn revenue from the products available on this page and participate in affiliate programs. My robot vacuum had a recent and unfortunate encounter with a phone charger that has left it completely dead. As a result, I've been manually vacuuming my dog's insidious hair pretty much every day so my home isn't overrun with fur tumbleweeds.
We thank the reviewers for their thoughtful comments
We thank the reviewers for their thoughtful comments. An expander graph code allows simple, neurally plausible decoding to perform at par with BP . These expander codes can also be decoded by belief propagation (BP), but it's harder the other way around. We plan to follow this paper with another paper describing neuroscience applications. For space and coherence, this paper focuses on the conceptual theory without elaborating on applications.
Deep Statistical Solvers
This paper introduces Deep Statistical Solvers (DSS), a new class of trainable solvers for optimization problems, arising e.g., from system simulations. The key idea is to learn a solver that generalizes to a given distribution of problem instances. This is achieved by directly using as loss the objective function of the problem, as opposed to most previous Machine Learning based approaches, which mimic the solutions attained by an existing solver.
Transformers Discover Molecular Structure Without Graph Priors
Kreiman, Tobias, Bai, Yutong, Atieh, Fadi, Weaver, Elizabeth, Qu, Eric, Krishnapriyan, Aditi S.
Graph Neural Networks (GNNs) are the dominant architecture for molecular machine learning, particularly for molecular property prediction and machine learning interatomic potentials (MLIPs). GNNs perform message passing on predefined graphs often induced by a fixed radius cutoff or k-nearest neighbor scheme. While this design aligns with the locality present in many molecular tasks, a hard-coded graph can limit expressivity due to the fixed receptive field and slows down inference with sparse graph operations. In this work, we investigate whether pure, unmodified Transformers trained directly on Cartesian coordinates$\unicode{x2013}$without predefined graphs or physical priors$\unicode{x2013}$can approximate molecular energies and forces. As a starting point for our analysis, we demonstrate how to train a Transformer to competitive energy and force mean absolute errors under a matched training compute budget, relative to a state-of-the-art equivariant GNN on the OMol25 dataset. We discover that the Transformer learns physically consistent patterns$\unicode{x2013}$such as attention weights that decay inversely with interatomic distance$\unicode{x2013}$and flexibly adapts them across different molecular environments due to the absence of hard-coded biases. The use of a standard Transformer also unlocks predictable improvements with respect to scaling training resources, consistent with empirical scaling laws observed in other domains. Our results demonstrate that many favorable properties of GNNs can emerge adaptively in Transformers, challenging the necessity of hard-coded graph inductive biases and pointing toward standardized, scalable architectures for molecular modeling.