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15,964 papers

#artificial intelligence Preprint Open access Oct 2026

Make Every Expansion Count: Learning to Search Efficiently in LLM Code Repair

Large language model (LLM) code-repair systems fix faulty programs by repeatedly generating and testing revisions. Each revision is costly, making the choice of which repair to pursue important for efficiency. Existing search policies rely on test pass rates and search statistics, ignoring the details of test failures...

Elad Sharony, Ido Greenberg, Jialin Song et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Variance-Optimal State Resampling for Reinforcement Learning with Verifiable Rewards

Reinforcement learning with verifiable rewards spends much of its rollout budget on states that yield no learning signal. We recast this as a question about the sampling distribution itself: under a fixed rollout budget, which distribution over states minimizes the variance of the policy-gradient estimator? The answer...

Yi-Bo Wang, Yuan-Xin Liu, Zhao-Ran Wang · 0 citations
#artificial intelligence Preprint Oct 2026

Personalized LLM Recommendation with Semantic IDs: Autoregressive Beam Search vs. Multi-Token Prediction

The experiments show single-head beam search consistently beats MTP on most product-critical metrics: ranking and content QA, and trains at roughly 2.6x lower dollar cost on Qwen3-8B scale; MTP wins only on raw inference throughput.

Sejoon Oh, Fernando Amat Gil, Evan Smoth-ers et al. · 0 citations
#artificial intelligence Preprint Oct 2026

LLM Value Functions for Credit Assignment in Agentic RL

Reinforcement learning (RL) for large language model (LLM) agents remains challenging in long-horizon tasks with sparse outcome rewards, where assigning credit to individual actions is difficult. Methods such as GRPO assign the same trajectory-level advantage to all actions, while critic-based methods require learning...

Kai-Jie Zhu, Wei-Xiang Yan, Omar Attia et al. · 0 citations
#artificial intelligence Preprint Oct 2026

Hyperbolic Time Series Forecasting with Learnable Decomposition and Manifold Dynamics

Proposed HyperForecast is the first long-term time series forecasting (LTSF) framework operating in hyperbolic space and consistently outperforms existing and state-of-the-art baselines on 9 of 11 long-term forecasting benchmarks, achieving up to 58% lower mean squared error at long horizons.

S. Patil, Vishal Fenn, Meng-Jia Xu · 0 citations
#artificial intelligence Preprint Open access Oct 2026

Uncovering the Generative Landscape of Diffusion Models: A Spectral-Guided Quality-Diversity Diffusion Framework

Denoising Diffusion Probabilistic Models have emerged as powerful generative priors across domains ranging from molecular design to high-resolution image synthesis. However, standard diffusion sampling is inherently biased toward high-likelihood regions, often limiting the diversity of outputs. In many domains, a singl...

Hannah Janmohamed, Joao Correia, Penousal Machado et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

What DNA Foundation Models Learn Beyond Sequence Composition

Do genomic foundation models (FMs) provide predictive information beyond simple sequence composition? We evaluate frozen representations from five DNA FMs against normalized k-mer frequencies across 57 genomic classification datasets and two exploratory gene-expression regression tasks. Simple k-mer features remain com...

Vincenzo Yuto Civale, Andrew David Bagdanov, Alberto Magi · 0 citations
#artificial intelligence Preprint Open access Oct 2026

RespFocus: Learning Temporal Evidence for Weakly Supervised Respiratory Sound Classification

Respiratory auscultation provides a low-cost means of assessing pulmonary function, yet transient crackles and sustained wheezes can be difficult to recognize in noisy clinical recordings. Conventional deep learning classifiers often operate as black boxes, offering limited insight into the temporal acoustic evidence s...

Yi Tian, Xiaohuan Chen, Yufei tang et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

TabMosaic: Unified In-Context Diffusion for Tabular Generative Tasks

Generative modeling for tabular data has advanced to the point where models can synthesize realistic records, recover missing values, and generate samples conditioned on class labels or observed attributes. Despite recent advances, existing approaches either require table-specific training or restrict in-context learni...

Jayoung Kim, Sanghyun Hong, Noseong Park · 0 citations
#artificial intelligence Preprint Oct 2026

ELECT: Settling Identity Before Rendering for Scalable Story Visualization

ELECT, which instead settles cross-frame identity before final rendering through a language-guided scene-entity mapping and stationary anchors elected from the model's own drafts, shows that long-horizon consistency need not require increasingly expensive inter-frame conditioning as stories grow.

Mehrajul Abadin Miraj, M. Hasan, M. Farzana et al. · 0 citations
#artificial intelligence Preprint Open access Oct 2026

OceanFlow: Coherent Flow Matching for Probabilistic Ocean Modeling

Probabilistic ocean modeling is essential for risk-aware marine operations, climate analysis, and scientific decision-making, where downstream decisions depend on the conditional distribution of future ocean states rather than a single deterministic trajectory. Recent data-driven ocean models have made deterministic gl...

Yuan Gao, Fan Xu, Hao Wu et al. · 0 citations
#artificial intelligence Preprint Oct 2026

SARATHI: Decoupled Data-Free Probing and Adaptive Reconstruction for Structured LLM Pruning

Structured pruning reduces the inference cost of large language models (LLMs) by permanently removing neurons and weight rows, yielding dense, hardware-agnostic speedup. Existing post-training methods couple neuron selection and weight reconstruction through a shared calibration dataset, introducing domain bias and out...

Sankar Behera, Dhruv Singh, Satyadev Ahlawat et al. · 0 citations

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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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