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16,109 papers

#machine learning Preprint Open access Oct 2026

S$^3$R: Fast and Faithful RL Rollouts via Self-Sparse Speculative Decoding

Fast rollout generation for long-context reinforcement learning with verifiable rewards (RLVR) requires reducing KV-cache traffic without changing the response groups used for policy optimization. In our profiled RLVR workloads, attention accounts for 72--76\% of autoregressive decoding kernel time. Sparse attention re...

Yuhang He, Hongyu Ge, Zihan Lin et al. · 0 citations
#machine learning Conference Open access Sep 2026

WaSA: Wavelet Scattering Autoencoders for Unsupervised Offline Detection of Malicious Clients in Federated Learning

Federated Learning (FL) enables collaborative model training without exposing raw data, yet remains vulnerable to malicious clients injecting poisoned datasets. Existing defenses are typically reactive (operating during training) or supervised (requiring prior knowledge of attack types)—assumptions that rarely hold in...

Alessandro Licciardi · 0 citations
#machine learning Preprint Oct 2026

Scaling RNA Foundation Models through Iterative Refinement

Biological function in RNA is encoded across scales, from local sequence motifs to long-range structural dependencies. Conventional RNA foundation models couple parameter capacity and inference depth within a fixed architecture, prescribing a fixed computation graph for each inference. Here we present Eco-RNA, an 80M-p...

Peng-An Chen, Liang Hong, Xin-Yuan Liu et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Can Failed Trajectories Reveal Where Agents Go Wrong? Agentic Failure Attribution Without Step-Level Labels

Failure attribution for LLM agents aims to identify decisive steps responsible for task failure, which is critical for debugging and improving agentic systems. Existing methods rely on costly LLM prompting, step-level error annotations, or verified successful trajectories that lack failure signals for assistance. In th...

Do Nguyen-Thanh, Junlin Fang, Bing Li et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Human and LLM Facilitation in Collaborative Design Meetings: A Computational Behavioral Comparison

Large language models (LLMs) are increasingly being explored as facilitators of group discussion and collaborative work, but the behavioral differences between LLM-generated and human facilitation remain insufficiently characterized. We compare human Project Manager facilitation turns from scenario-based collaborative...

Mohammed Azeez Khan, Aaron Dsouza, Ashutosh Mishra et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Double-Take: Improving Capacity, Binding, and Selectivity In Long-Context Within Bidirectional Memory

Processing a long sequence does not guarantee that distant information remains usable. As context grows, a fixed-size memory must retain many associations, connect information across positions, and preserve relevant structure without being overwhelmed by everything it observes. These are distinct requirements: a memory...

Vakul Raghavan, Utkarsh Grover, Mingyang Mao et al. · 0 citations
#machine learning Preprint Oct 2026

CB-Orchestrator: Adaptive Workflow Optimization for LLM Agents via Contextual Bandits

Large Language Model (LLM) agents have demonstrated remarkable capabilities in tackling complex tasks through agentic workflows. However, manually designing these workflows is labor-intensive and lacks flexibility to adapt to diverse queries. While automated workflow optimization is a promising direction, existing meth...

Jia-Hang Sun, Zhi-Wei Shang, Zhi-Piao Liu et al. · 0 citations
#machine learning Preprint Oct 2026

Towards Easier-to-Tune Training Algorithms: New Results from AlgoPerf

Evaluating deep learning optimizer is challenging because confounding factors such as hyperparameter tuning and optimizer-model co-design often obscure true algorithmic performance. We present results of the updated AlgoPerf V1 benchmark, in which we evaluate a new set of training algorithms on wall-clock time-to-targe...

Priya Kasimbeg, Ahmed Khaled, Aahlad Chandrabhatta et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Target-Constrained Pooling for Trajectory Extrapolation

Trajectory extrapolation from a partial target trajectory is underdetermined, but completed related trajectories provide information about the unresolved continuation. We propose target-constrained pooling (TCP), which separates the finite-horizon endpoint from continuation shape and estimates that endpoint from two co...

Ning Wang, Claire Cardie, Sainyam Galhotra · 0 citations
#machine learning Preprint Open access Oct 2026

Low-Rank Kolmogorov-Arnold Generator Flows for Interpretable Operator Learning

Neural operators that learn physical laws from data should generalize beyond their training distribution and expose the learned law in closed form. The Kolmogorov-Arnold neural operator achieves both for position-dependent dynamics by learning a dense pseudo-differential symbol over all positions and frequencies, at a...

Minjong Cheon · 0 citations
#machine learning Preprint Open access Oct 2026

Trajectory-Aware Policy Optimization: Closing the State Distribution Gap in Long-Horizon LLM RL

Reinforcement learning (RL) has become a dominant paradigm for enhancing LLMs' reasoning capabilities. Yet long-horizon autoregressive rollouts introduce a fundamental limitation: local policy mismatch can compound into severe state distribution shift over trajectories. Existing LLM RL methods, such as GRPO and GSPO, c...

Zhicheng Cai, Weinan Dai, Yuyan Zhou et al. · 0 citations
#machine learning Review Open access Oct 2026

Evidential Multimodal Transformers With Dempster-Shafer Fusion for Emotion Recognition

Softmax-based multimodal emotion recognition methods often assign high confidence even when sensor data are corrupted or contradictory, for example when facial expressions suggest positive valence while vocal prosody indicates negative arousal. We present an Evidential Multimodal Transformer with Dempster-Shafer Fusion...

Muhammad Usama, Ye-Sung Jung · 0 citations

From tech blogs

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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.

MIT News · Artificial Intelligence Oct 23, 2026

Q&A: How AI came to model the “messy” human mind

Assistant Professor Benjamin Lindquist studies how engineers deliberately injected randomness into early AI, giving rise to deep-learning models that sometimes hallucinate.

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