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17,191 papers

#machine learning Preprint Open access Nov 2026

When Strong Reasoners Join the Pool: Small Union Premiums and Costly Runaway Generations in LLM Routing

Routing benchmarks often judge a router against a hindsight oracle that counts a query as solved whenever any model's recorded answer is correct, but under stochastic decoding that oracle mixes two different objects: the clairvoyant ceiling of committing to one model per query and the premium of calling several models...

Teng-Ruei Chen · 0 citations
#machine learning Preprint Open access Nov 2026

ScaleTraj: Scale-Decomposed Human Trajectory Generation

Individual-level trajectories are essential for applications that rely on user-level mobility behavior. Existing mobility-generation approaches face a fundamental tension between individual-level and population-level statistical fidelity: top-down models reproduce aggregate mobility statistics but struggle to guarantee...

Yulin Zeng, Yiheng Zhao, Jun Yan et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Follow the Features: SAE Feature-Guided Data-Efficient Instruction-Tuning of Large Language Models

Selecting small, effective instruction-tuning datasets requires identifying which aspects of the original data to retain. We introduce Follow the Features (FtF), a data-selection method that uses sparse autoencoder (SAE) features to characterize training data and guide subset construction. FtF ranks features using data...

Ryan Swift, Konstantinos Psounis · 0 citations
#machine learning Preprint Open access Nov 2026

RAPID: Increasing Efficiency of Internal Distillation via Randomized Methods

Knowledge distillation is a technique used to transfer the expertise of large teacher models into small, efficient student models. Recent advances have integrated the distillation of internal activations, more directly training students to learn similar representations as the teacher. One of the core challenges of inte...

Ryan Swift, Konstantinos Psounis · 0 citations
#machine learning Preprint Open access Nov 2026

Computer-Use Agents Gain Little Benefit from a World Model When Conditioned on Tutorials

Recent work has improved computer-use agents (CUAs) by combining retrieved task-relevant tutorials and look-ahead planning using world models with MLLM judges. However, the contribution of each component -- tutorials, the judge, and the world model -- to overall improvement has not been evaluated in isolation. To fill...

Anh Nguyen, Tianyi Xu, Phat Tran et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Finite-Sample Convergence in Networked Average Reward MARL: Decentralization Pitfalls and Entropy Remedies

We study the problem of average reward Multi-Agent Reinforcement Learning (MARL) where agents interact within a network. Each agent in the network conducts local updates with information within its $k$-hop neighborhood and collaboratively maximizes the overall reward of the entire network. We first provide impossibilit...

Yizhou Zhang, Yashaswini Murthy, Laixi Shi et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Graph-Localized Coverage for Conformal Prediction on Inductive Graphs

Conformal prediction (CP) provides marginal coverage guarantees, but marginal coverage does not determine where prediction errors occur on a graph. Queries from different graph neighborhoods can exhibit substantially different levels of uncertainty even when aggregate coverage remains near its target. We introduce GLoc...

Jinwen Xu, Qin Lu, Georgios B. Giannakis · 0 citations
#machine learning Preprint Open access Nov 2026

TB-Transolver: Parallelized and Coherent Long-Horizon Rollouts via Temporal Bundling for Time-Dependent PDEs

Transolver has recently gained widespread adoption for solving diverse physical problems on unstructured geometric meshes by leveraging its Physics-Attention mechanism, which seamlessly extends standard softmax attention to handle physical domains at scale. For time-dependent problems, existing literature relies on tim...

Sidharth S. Menon, Ameya D. Jagtap · 0 citations
#machine learning Preprint Open access Nov 2026

StreamLTT: Risk Certification for Policy Selection under Stream Dependence

Learn-then-Test (LTT) provides a general framework for certifying deployment policies against a prescribed risk target, but its standard formulation targets a fixed population risk estimated from calibration losses. In sequential deployment, losses may instead be dependent and nonstationary, so the risk of a fixed poli...

Jinwen Xu, Qin Lu · 0 citations
#machine learning Preprint Open access Nov 2026

Structured Priors: Towards an algebra of component priors for prior-data fitted networks

Prior-data fitted networks are typically trained using synthetic data generated by a single, manually constructed generator. In cases where such a generator combines multiple components, e.g., in TabPFN, Mitra, or TabICLv2, this is achieved through a mixture using manually specified weights, the impact of which on the...

Thomas Bartz-Beielstein · 0 citations
#machine learning Preprint Open access Nov 2026

Denoising Is Stein: Moment Access and a Resource Hierarchy for Learning Hidden Structure in Diffusion Models

We study score learning from denoising pairs when the data contain a hidden non-Gaussian component. If covariance reveals the component, its subspace can be recovered directly. If covariance is isotropic, the first distinguishing moment has order $k^\ast$, and the learner must extract that moment from clean points and...

Rui Wang · 0 citations
#machine learning Preprint Open access Nov 2026

Decision Transformer with Task-Aware Representations for Offline Meta-Reinforcement Learning

To enable effective generalization in offline meta-RL, it is essential to accurately infer the underlying task through latent task representations, which provide a compact and transferable summary of task-specific characteristics for guiding policy generation. In this paper, we propose Contrastive Task-Aware Decision T...

Xinbo Zhao, Yuhang Liu, Xin Zhang et al. · 0 citations

From tech blogs

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Microsoft Research Blog Nov 3, 2026

Learn the rules: The hacker mindset

Research Manager Mike Walker reflects on a career spanning hacker culture, cybersecurity, and AI, sharing lessons about trust, teamwork, leadership, and why solving difficult problems requires curiosity, judgment, agility—and an understanding of the rules. The post Learn the rules: The hacker mindset appeared first on Microsoft Research.

Google DeepMind Blog Nov 3, 2026

Agentic cheminformatics with Google Antigravity

Learn how Google Antigravity and our Cheminformatics Skills accelerate drug discovery workflows, search compounds, and propose novel rigidified macrocycles.

MIT News · Artificial Intelligence Oct 28, 2026

Making machines that can listen

Professor Paris Smaragdis develops computers with superhuman hearing for applications like speech recognition, music understanding, and environmental monitoring.

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