Category Physics

ChartNet trains AI to read charts, boosting smaller models past commercial rivals

To accelerate and refine decision-making in a fast-paced, global marketplace, enterprises may deploy generative artificial intelligence models to help summarize and interpret the charts that often fill market summaries and financial reports.

But even the latest vision-language models sometimes struggle with this task, since it requires a model to integrate visual, numerical, and linguistic understanding. A company that invests in a state-of-the-art model might still receive inaccurate or incomplete information.

To fill this performance gap, researchers from MIT and the MIT-IBM Computing Research Lab developed a multifaceted resource for AI users that is specifically designed to teach vision-language models (VLMs) how to effectively interpret charts.

They used a novel data gen...

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World-first spintronic p-bit on silicon chip points toward larger AI-ready p-computers

Spintronics P-computer ready for scale-up
Photograph of test chips fabricated on a silicon substrate using semiconductor integrated circuit manufacturing processes. Credit: Shunsuke Fukami, William A. Borders et al

A Japan–U.S. collaborative research team has demonstrated the world’s first integrated spintronic probabilistic bit, or p-bit, fabricated on a silicon chip using semiconductor manufacturing processes. The team, consisting of researchers from Tohoku University and the National Institute of Standards and Technology, experimentally verified the operation of the p-bit, a key building block for probabilistic, or p-, computers. The achievement provides a pathway toward large-scale spintronic p-computers for applications such as AI and machine learning.

Many emerging computational problems require efficient exploratio...

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AI repurposes routine chest X-rays to catch silent bone loss before fracture

AI repurposes routine chest X-rays to catch silent bone loss before fracture
Credit: Shu-Han Chen / St. Paul’s Hospital / National Taiwan University

Osteoporosis is a silent disease where bone loss develops gradually before fractures occur. Current clinical screening recommendations mainly focus on older women and selected high-risk groups, leaving some men, younger adults, and individuals with normal body weight completely outside routine screening pathways.

To close this care gap, researchers from St. Paul’s Hospital and National Taiwan University have demonstrated how AI can leverage routine chest X-rays to detect asymptomatic bone loss, closing critical gaps in screening healthy Asian populations. Their paper is published in the journal npj Digital Medicine.

Strikingly, the study found that more than half of the confirmed abnormal bone-density cases...

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Photon-driven synapse advances low-power neuromorphic systems

Photon-driven synapse advances low-power neuromorphic systems
A photon-modulated synaptic device based on a rare-earth-doped long-afterglow crystal facilitates excitatory (UV-induced) and inhibitory (near-infrared induced) plasticity. This schematic depicts the excitatory impulse with luminescence as the optical output. Credit: Y. Yan et al.

Modern artificial intelligence systems rely on moving large amounts of data between memory and processors, a design that limits speed and increases energy use. The human brain works differently: it combines memory and computation within synapses, allowing fast, efficient learning and perception. Replicating this approach in hardware is a central goal of neuromorphic computing, especially for tasks like vision, where most real-world information is gathered and processed.

A fully optical artificial synapse
In...

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