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17,191 papers

#machine learning Preprint Open access Oct 2026

How Does RL Post-training Induce Skill Composition? A Case Study on Countdown

While reinforcement learning (RL) successfully enhances reasoning in large language models, its role in fostering compositional generalization (the ability to synthesize novel skills from known components) is often conflated with mere length generalization. To this end, we study what RL post-training teaches about skil...

Simon Park, Simran Kaur, Sanjeev Arora · 0 citations
#machine learning Preprint Open access Oct 2026

Specter: Fast MoE Inference via Quantization-Enabled Multi-Step Speculative Offloading

Mixture-of-experts (MoE) models often exceed a single accelerator's memory capacity. Offloading experts to host memory creates a severe PCIe I/O bottleneck because data-dependent routing keeps transfers on the critical path. We present Specter, an inference system that uses quantization to combine speculative decoding...

Wenfeng Wang, Xiaofeng Hou, Xinfeng Xia et al. · 0 citations
#artificial intelligence Preprint Oct 2025

Revisiting GAN with Bayes-Optimal Discrimination

An adversarial game in which the discriminator tightens this bound and the generator maximizes it is formulated, and it is shown that, under balanced class priors, the population game is equivalent to minimizing total variation between the data and generator distributions.

Mohammadreza Tavasoli Naeini, Ali Bereyhi, Morteza Noshad et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

FlowCritic: Bridging Value Estimation with Flow Matching in Reinforcement Learning

Reliable value estimation serves as the cornerstone of reinforcement learning (RL) by evaluating long-term returns and guiding policy improvement, significantly influencing the convergence speed and final performance. Existing works improve the reliability of value function estimation via multi-critic ensembles and dis...

Shan Zhong, Shutong Ding, He Diao et al. · 0 citations
#machine learning Preprint Open access Oct 2026

To Distill or Decide? Understanding the Algorithmic Trade-off in Partially Observable Reinforcement Learning

Partial observability is a notorious challenge in reinforcement learning (RL), due to the need to learn complex, history-dependent policies. Recent empirical successes have used privileged expert distillation--which leverages availability of latent state information during training (e.g., from a simulator) to learn and...

Yuda Song, Dhruv Rohatgi, Aarti Singh et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Robust Tangent Space Estimation via Laplacian Eigenvector Gradient Orthogonalization

Estimating the tangent spaces of a data manifold is a fundamental problem in geometric data analysis. The standard approach, Local Principal Component Analysis (LPCA), struggles in high-noise settings due to a critical trade-off in choosing the neighborhood size. Selecting an optimal size requires prior knowledge of th...

Dhruv Kohli, Sawyer J. Robertson, Gal Mishne et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Energy Estimation for Virtual Servers Using Resource Utilization and Machine Learning

Estimating the energy use of virtual servers is difficult because physical power interfaces and privileged host counters are typically accessible only on the underlying physical host. We investigate a machine learning approach that predicts the CPU-package power attributable to an individual virtual server from system...

Amandip Sangha · 0 citations
#machine learning Preprint Open access Oct 2026

Sparse Equation Matching: A Derivative-Free Learning for General-Order Dynamical Systems

Equation discovery is a fundamental learning task for uncovering the underlying dynamics of complex systems, with wide-ranging applications in areas such as brain connectivity analysis, climate modeling, gene regulation, and physical simulation. However, many existing approaches rely on accurate derivative estimation a...

Jiaqiang Li, Jianbin Tan, Xueqin Wang · 0 citations
#machine learning Preprint Open access Oct 2026

Aggregation of Published Non-Uniform Axial Power Data for Phase II of the OECD/NEA AI/ML Critical Heat Flux Benchmark

Critical heat flux (CHF) marks the onset of boiling crisis in light-water reactors, defining safe thermal-hydraulic operating limits. To support Phase II of the OECD/NEA AI/ML CHF benchmark, which introduces spatially varying power profiles, this work compiles and digitizes a broad CHF dataset covering both uniform and...

Reece Bourisaw, Reid McCants, Jean-Marie Le Corre et al. · 0 citations
#artificial intelligence Preprint Apr 2025

Does More Compute Make Every Adversarial Attack Transferable?

This work shows that, when there is a quadratic gap in computational resources between attacker and defender, every learnable classification task admits either a transferable attack or an adversarial defense, and proves a stronger result that implies this failure.

Greg Gluch, S. Goldwasser, Anastasiia Struss · 1 citation
#machine learning Preprint Open access Oct 2026

Analysis of On-policy Policy Gradient Methods under the Distribution Mismatch

Policy gradient methods are among the most successful approaches for solving challenging reinforcement learning problems. Despite their empirical success, many state-of-the-art policy gradient algorithms for discounted problems estimate update directions using a sampling distribution that differs from the discounted st...

Weizhen Wang, Xinzhe Zhou, Jianping He et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

ACTIVA: Amortized Causal Effect Estimation via Variational Autoencoders

Predicting post-intervention distributions from observational data is central to many scientific and decision-making problems, but remains challenging due to causal ambiguity, restrictive modeling assumptions, and the lack of amortization across tasks. We introduce ACTIVA, a transformer-based conditional variational au...

Andreas Sauter, Saber Salehkaleybar, Frank van Harmelen 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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