February 2026

Beyond performance-wise Contribution Evaluation in Federated Learning

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Federated learning offers a privacy-friendly collaborative learning framework, yet its success, like any joint venture, hinges on the contributions of its participants. Existing client evaluation methods predominantly focus on model performance, such as accuracy or loss, which represents only one dimension of a machine learning model’s overall utility. In contrast, this work investigates the critical, yet overlooked, issue of client contributions towards a model’s trustworthiness — specifically, its reliability (tolerance to noisy data), resilience (resistance to adversarial examples), […]

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Musk has no proof OpenAI stole xAI trade secrets, judge rules, tossing lawsuit

Musk has no proof OpenAI stole xAI trade secrets, judge rules, tossing lawsuit

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Elon Musk appears to be grasping at straws in a lawsuit accusing OpenAI of poaching eight xAI employees in an allegedly unlawful bid to access xAI trade secrets connected to its data centers and chatbot, Grok. In a Tuesday order granting OpenAI’s motion to dismiss, US District Judge Rita F. Lin said that xAI failed to provide evidence of any misconduct from OpenAI. Instead, xAI seemed fixated on a range of alleged conduct of former employees. But in […]

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The Galaxy S26 is faster, more expensive, and even more chock-full of AI

The Galaxy S26 is faster, more expensive, and even more chock-full of AI

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There used to be countless companies making flagship Android phones, but a combination of factors has narrowed the field over time. Today, Samsung is the undisputed king of the Android device ecosystem with its Galaxy S line. So we can safely assume today’s Unpacked has revealed the most popular Android phones for the next year—the Galaxy S26 Ultra, Galaxy S26+, and Galaxy S26. Samsung didn’t swing for the fences this time around, producing phones with a few cosmetic […]

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tldraw issue: Move tests to closed source repo

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tldraw issue: Move tests to closed source repo It’s become very apparent over the past few months that a comprehensive test suite is enough to build a completely fresh implementation of any open source library from scratch, potentially in a different language. This has worrying implications for open source projects with commercial business models. Here’s an example of a response: tldraw, the outstanding collaborative drawing library (see previous coverage), are moving their test suite to a private repository […]

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A Learning-Based Hybrid Decision Framework for Matching Systems with User Departure Detection

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In matching markets such as kidney exchanges and freight exchanges, delayed matching has been shown to improve overall market efficiency. The benefits of delay are highly sensitive to participants’ sojourn times and departure behavior, and delaying matches can impose significant costs, including longer waiting times and increased market congestion. These competing effects make fixed matching policies inherently inflexible in dynamic environments. We propose a learning-based Hybrid framework that adaptively combines immediate and delayed matching. The framework continuously collects […]

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Efficiently serve dozens of fine-tuned models with vLLM on Amazon SageMaker AI and Amazon Bedrock

Efficiently serve dozens of fine-tuned models with vLLM on Amazon SageMaker AI and Amazon Bedrock

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Organizations and individuals running multiple custom AI models, especially recent Mixture of Experts (MoE) model families, can face the challenge of paying for idle GPU capacity when the individual models don’t receive enough traffic to saturate a dedicated compute endpoint. To solve this problem, we have partnered with the vLLM community and developed an efficient solution for Multi-Low-Rank Adaptation (Multi-LoRA) serving of popular open-source MoE models like GPT-OSS or Qwen. Multi-LoRA is a popular approach to fine-tune models. […]

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Judge doesn't trust DOJ with search of devices seized from Wash. Post reporter

Judge doesn’t trust DOJ with search of devices seized from Wash. Post reporter

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A federal court will conduct a search of devices seized from a Washington Post reporter after a magistrate judge decided yesterday that the Department of Justice cannot be trusted to perform the search on its own. US Magistrate Judge William Porter criticized government prosecutors for not including key information in a search warrant application. The court wasn’t aware of a 1980 law that limits searches and seizures of journalists’ work materials when it approved the warrant, Porter acknowledged. […]

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Learning geometry-dependent lead-field operators for forward ECG modeling

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Modern forward electrocardiogram (ECG) computational models rely on an accurate representation of the torso domain. The lead-field method enables fast ECG simulations while preserving full geometric fidelity. Achieving high anatomical accuracy in torso representation is, however, challenging in clinical practice, as imaging protocols are typically focused on the heart and often do not include the entire torso. In addition, the computational cost of the lead-field method scales linearly with the number of electrodes, limiting its applicability in high-density […]

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Building intelligent event agents using Amazon Bedrock AgentCore and Amazon Bedrock Knowledge Bases

Building intelligent event agents using Amazon Bedrock AgentCore and Amazon Bedrock Knowledge Bases

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Large conferences and events generate overwhelming amounts of information—from hundreds of sessions and workshops to speaker profiles, venue maps, and constantly updating schedules. While basic AI assistants can answer simple questions about event logistics, most fail to deliver the personalized guidance and contextual awareness that attendees need to navigate complex, multi-day conferences effectively. More importantly, moving these prototypes from demo to production—with enterprise security, scalability for thousands of concurrent users, and reliable performance—typically requires months of infrastructure development. […]

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Mixing generative AI with physics to create personal items that work in the real world

Mixing generative AI with physics to create personal items that work in the real world

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Have you ever had an idea for something that looked cool, but wouldn’t work well in practice? When it comes to designing things like decor and personal accessories, generative artificial intelligence (genAI) models can relate. They can produce creative and elaborate 3D designs, but when you try to fabricate such blueprints into real-world objects, they usually don’t sustain everyday use. The underlying problem is that genAI models often lack an understanding of physics. While tools like Microsoft’s TRELLIS system […]

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