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18,068 papers

#machine learning Preprint Open access Oct 2026

Mind the Gap: Structure-Aware Consistency in Preference Learning

Aligning Large Language Models (LLMs) with human intent, whether through explicit reward modeling or direct methods such as DPO, fundamentally relies on minimizing a surrogate loss as a proxy for the true pairwise ranking objective. We prove that this reliance is flawed for the standard surrogate losses used: for the e...

Mehryar Mohri, Yutao Zhong · 0 citations
#machine learning Preprint Open access Oct 2026

Where to Steer: Input-Dependent Layer Selection for Steering Improves LLM Alignment

Steering vectors have emerged as a lightweight and effective approach for aligning large language models (LLMs) at inference time, enabling modulation of model behaviors by shifting intermediate representations toward a target behavior. Many existing steering methods apply interventions at globally fixed locations in a...

Soham Gadgil, Chris Lin, Su-In Lee · 0 citations
#machine learning Preprint Open access Oct 2026

SEVerA: Verified Synthesis of Self-Evolving Agents

Recent advances have shown the effectiveness of self-evolving LLM agents on tasks such as program repair and scientific discovery. In this paradigm, a planner LLM synthesizes an agent program that invokes parametric models, including LLMs, which are then tuned per task to improve performance. However, existing self-evo...

Debangshu Banerjee, Changming Xu, Eugene Ie et al. · 0 citations
#machine learning Preprint Open access Oct 2026

A Model Ensemble-Based Post-Processing Framework for Fairness-Aware Prediction

Striking an optimal balance between predictive performance and fairness continues to be a fundamental challenge in machine learning. In this work, we propose a post-processing framework that facilitates fairness-aware prediction by leveraging model ensembling. Designed to operate independently of any specific model int...

Zhouting Zhao, Tin Lok James Ng · 0 citations
#machine learning Preprint Open access Oct 2026

3DTCR: Vortex-following generative reconstruction improves tropical cyclone intensity prediction from global AI weather forecasts

Global numerical weather prediction (NWP) and artificial intelligence (AI) models often underestimate tropical cyclone (TC) intensity, partly because coarse grids underresolve fine-scale three-dimensional inner-core structures that influence TC intensity evolution. Kilometer-scale NWP simulations can better resolve the...

Jun Liu, Xiaohui Zhong, Kai Zheng et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Fractional Rotation, Full Potential? Investigating Performance and Convergence of Partial RoPE

Rotary Positional Embedding (RoPE) is widely used in transformers to encode relative positional information, yet the effect of applying RoPE to only a subset of hidden dimensions remains underexplored. This design choice can substantially reduce memory usage, especially at long context lengths. We show that partial RoP...

Mohammad Aflah Khan, Krishna P. Gummadi, Manish Gupta et al. · 0 citations
#machine learning Preprint Open access Oct 2026

Mitigating Memorization Where It Happens

Large language models (LLMs) can memorize and reproduce training sequences verbatim, raising privacy and copyright concerns. Existing mitigation methods apply interventions uniformly, often degrading performance on the majority of tokens that generalize normally. We study a token-level log-likelihood ratio between a ta...

Xuanqi Zhang, Haoyang Shang, Xiaoxiao Li · 0 citations

TASTE: Task-Aware Out-of-Distribution Detection via Stein Operators

A task-aware framework based on so-called Stein operators, which links distribution shift to the input sensitivity of the model, with theoretical guarantees, and which aligns closely with task degradation while showing competitive performance compared to established baselines.

M. Kozyra, G. Reinert · 1 citation
#machine learning Open access Oct 2026

The impact of temporal resampling on the safety of clinical reinforcement learning: A simulated trial

Reinforcement learning (RL) is a type of artificial intelligence for making optimal choices. In healthcare, researchers generally use offline RL (ORL), where models are trained and evaluated from retrospective observational data. To accommodate naturally irregular clinical records, researchers often resample the data i...

Thomas Frost, Hrisheekesh Vaidya, Steve Harris · 2 citations
#machine learning Preprint Open access Oct 2026

Soft Sensor for Bottom-Hole Pressure Estimation in Petroleum Wells Using Long Short-Term Memory and Transfer Learning

Monitoring bottom-hole variables in petroleum wells is essential for production optimization, safety, and emissions reduction. Permanent Downhole Gauges (PDGs) provide real-time pressure data but face reliability and cost issues. We propose a machine learning-based soft sensor to estimate flowing Bottom-Hole Pressure (...

M. A. Fernandes, E. Gildin, M. A. Sampaio · 0 citations
#machine learning Preprint Jan 2026

CoCopula: Conformal Calibration and Copula Aggregation for Reliable Renewable Energy Forecasting

A probabilistic aggregation and calibration framework that directly converts site-level probabilistic forecasts into reliable fleet-level forecasts and achieves performance comparable to directly calibrated system-level forecasts is presented, demonstrating its practical value when dedicated fleet-level forecasting mod...

Alireza Moradi, Mathieu Tanneau, R. Zandehshahvar et al. · 3 citations · ⚡1
#machine learning Preprint Open access Oct 2026

TabClustPFN: A Prior-data Fitted Network for Tabular Data Clustering

Prior-data Fitted Networks (PFNs) have reframed supervised tabular learning as single-pass in-context inference without per-dataset optimization. Extending this paradigm to clustering is appealing yet fundamentally more challenging, due to absent supervision, unknown cluster cardinality, and label switching inherent to...

Tianqi Zhao, Guanyang Wang, Yan Shuo Tan et al. · 0 citations

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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.

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