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artificial intelligence

20,463 papers

#artificial intelligence Preprint Open access Nov 2026

Shared Modular Recurrence in Contextual MDPs for Universal Morphology Control

A universal controller for any robot morphology would greatly improve computational and data efficiency. Steps have been made towards such multi-robot control by utilizing contextual information about the properties of individual robots and exploiting their modular structure in the architecture of deep reinforcement le...

Laurens Engwegen, Max Weltevrede, Caroline Horsch et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Hierarchical World Models with Implicit Dynamics

This work introduces ID-WM (Implicit Dynamics World Models), a hierarchical world model that decouples state-space reachability from local control and yields a 135% performance gain over single-level world model MPC, particularly in complex, unseen configurations for long-horizon tasks.

Gao-Yue Zhou, Yvonne Wu, Zichen Jeff Cui et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Subquadratic Attention with a Hierarchical Tree-Structured Indexer

This paper derives an asymptotically subquadratic sparse attention method based on a hierarchical, tree-structured indexer, which it is demonstrated can be cheaply applied to existing pretrained models, and maintains performance on long-context retrieval and challenging reasoning, mathematical, and agentic coding evalu...

Leon Lufkin, Cutter Dawes, Alexander Speicher et al. · 0 citations
#artificial intelligence Preprint Open access Nov 2026

CRoS: Causality Reward on Scrambled CoTs Improves Accuracy and Reasoning Faithfulness

Reinforcement learning with verifiable rewards (RLVR) has become the standard method for training language models to reason. However, RLVR typically relies solely on outcome correctness, which does not guarantee that the CoT causally contributes to the final answer. Without this connection, outcome rewards may fail to...

Xiao Yu, Justin Chih-Yao Chen, Zaid Khan et al. · 0 citations
#artificial intelligence Preprint Open access Nov 2026

Near-Optimal Second-Order Convex Finite-Sum Optimization under Individual Smoothness

We study the stochastic second-order oracle complexity of solving smooth convex finite-sum optimization with $n$ components. Very recently, Tsedenov \& Kovalev (2026) showed that the minimax optimal complexity under averaged smoothness and convexity is $\tilde{\Theta}(n + n^{6/7} \epsilon^{-2/7})$ by establishing nearl...

Xinliang Zhang, Lesi Chen, Zonghan Li et al. · 0 citations
#artificial intelligence Preprint Open access Nov 2026

Learning Clean Generative Processes from Noisy Measurements

We study how to learn a generative model of clean images using only noisy observations. Diffusion processes and their generalizations to non-Gaussian noise require posterior predictions at every noise level. We first show that it is possible to learn these predictions from independent noisy views using Noise2Noise regr...

Fabian Kruse, Lorenzo Baldassari, Ivan Dokmani\'c · 0 citations
#artificial intelligence Preprint Oct 2026

There Is No Free Loop: When Does Looping a Trained Model Pay for Its Inference Compute?

Looping re-applies a block of layers so that each token passes through the block more than once. Adding a loop to a trained model is attractive because it leaves the parameter count, and hence the disk size, the memory footprint and the training cost unchanged. Unfortunately, every generated token pays for the loop. Re...

R. Sukthanker, Pashmina Cameron · 0 citations
#artificial intelligence Preprint Oct 2026

Know When the Equation Is Wrong: Structural Uncertainty for LLM-Guided Symbolic Regression under Extrapolation

LLM-SR-UQ is introduced, a framework that retains competing equation structures and uses their disagreement to characterize uncertainty about the underlying functional form and substantially improves coverage attainment by incorporating structural disagreement while preserving in-distribution coverage.

Mostafa Cham, B. Tama, Jian-Wu Wang · 0 citations
#artificial intelligence Preprint Oct 2026

AutoAnalysis: An automated, self-updating meta-analysis of human-AI collaboration

Automated, self-updating meta-analysis of when humans and AI work better together, and when they work better alone is introduced, finding that, on average, human-AI combinations performed significantly better than humans alone, but they performed significantly worse than the better of humans or AI alone.

Michelle Vaccaro, Abdullah Almaatouq, Thomas W. Malone · 0 citations
#artificial intelligence Preprint Oct 2026

SecPO: Principled Adversarial Training for Prompt Injection Security

An idealized reference model---an injection-invariant, utility-preserving oracle---can nevertheless be approximated, as its output distribution in training is interestingly accessible, which motivates a theoretically principled SecPO loss.

Si-Zhe Chen, Yi-Bo Peng, Jaewon Chang et al. · 1 citation
#artificial intelligence Preprint Oct 2026

Chronos-2: A foundation model for multivariate time series forecasting

Chronos-2 is introduced, a foundation model for zero-shot forecasting that models the interactions between multivariate time series and heterogeneous covariates, which commonly arise in scientific applications and shows that a single pretrained model can capture structure shared across temporal systems.

Abdul Fatir Ansari, Oleksandr Shchur, Jaris Küken et al. · 0 citations

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Hugging Face Blog Nov 10, 2026

Decision Models in Hugging Face

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