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data science

3,686 papers

#artificial intelligence Preprint Sep 2026

An Autonomy Aware Metamodel for Human AI Collaboration in Software Engineering

This work provides a conceptual foundation for governance-aware, adaptable, and AI-first software engineering methods by proposing a metamodel that treats autonomy not as a fixed property of an actor, but as a derived, situation-dependent authority assignment determined by task, context, and collaboration pattern.

Mahade Hasan, M. Hasan, Zhe-Ying Zhang et al. · 0 citations
#natural language process... Preprint Sep 2026

Representation-based Masked Diffusion Model

Representation-based Masked Diffusion Model (RMDM) is proposed, a framework that leverages the text representation to explicitly encode global semantics and help to parallel update tokens more precisely, and significantly improves generation quality, particularly in aggressive few-step sampling regimes.

Yang Hu, Ding Huang, Xue-Yu Zhou et al. · 0 citations

Adapt or Forget: Provable Tradeoffs Between Adam and SGD in Nonstationary Optimization

Borders reveal a noise--drift tradeoff: in noise-dominated regimes, first-moment averaging and adaptive preconditioning can yield favorable upper guarantees, whereas in drift-dominated regimes, stale first-moment information and preconditioning can enlarge Adam's tracking guarantee, potentially allowing vanilla SGD to...

Sharan Sahu, Abir Sarkar, Cameron J. Hogan et al. · 0 citations
#machine learning Preprint Open access Sep 2026

Bias-Corrected Data Synthesis for Imbalanced Learning

Class imbalance complicates probabilistic classification because standard training objectives emphasize majority-class performance. Synthetic oversampling can reduce imbalance, but discrepancies between the synthetic and target minority distributions may bias the fitted classifier, especially because synthetic samples...

Pengfei Lyu, Zhengchi Ma, Linjun Zhang et al. · 0 citations
#machine learning Preprint Open access Sep 2026

Scalable Krylov Subspace Methods for Generalized Mixed-Effects Models with Crossed Random Effects

Mixed-effects models are widely used to model data with complex grouping structures and high-cardinality categorical predictor variables. However, for high-dimensional crossed random effects, current standard computations relying on Cholesky decompositions can become prohibitively slow. In this work, we present Krylov...

Pascal K\"undig, Fabio Sigrist · 0 citations
#machine learning Preprint Apr 2025

A Generalized Tangent Approximation based Variational Inference Framework for Strongly Super-Gaussian Likelihoods

This article proposes a novel variational framework based on tangent transformation for a broad class of probability models characterized by strongly super-Gaussian likelihoods, thereby inducing conjugacy with Gaussian priors over model parameters in an otherwise intractable setup.

Somjit Roy, Pritam Dey, D. Pati et al. · 0 citations

Statistical Uncertainty Quantification for Aggregate Performance Metrics in Machine Learning Benchmarks

This work demonstrates how statistical methodology can be used for quantifying uncertainty in metrics that have been aggregated across multiple tasks, and emphasizes bootstrapping, Bayesian hierarchical (i.e., multilevel) modeling, and the visualization of task weightings that consider standard errors.

Rachel Longjohn, Giri Gopalan, Emily Casleton · 12 citations · ⚡1
#machine learning Preprint Open access Sep 2026

Satisficing Regret Minimization in Bandits: Constant Rate and Light-Tailed Distribution

Motivated by the concept of satisficing in decision-making, we consider the problem of satisficing regret minimization in bandit optimization. In this setting, the learner aims at selecting satisficing arms (arms with mean reward exceeding a certain threshold value) as frequently as possible. The performance is measure...

Qing Feng, Tianyi Ma, Ruihao Zhu · 0 citations

The General Theory of Localization Methods

It is shown that the Transformer -- a cornerstone of modern sequence modeling -- can be constructed using hierarchical local models, revealing the ability of the localization method to unify and generalize state-of-the-art architectures.

Cong-Wei Song · 0 citations

Aligning Language Models with Observational Data: Opportunities and Risks from a Causal Perspective

It is shown that while observational outcomes can provide valuable supervision, directly fine-tuning models on such data can lead them to learn spurious correlations, and proposes DeconfoundLM, a method that explicitly removes the effect of known confounders from reward signals.

Erfan Loghmani · 1 citation

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GPT-Lab Nov 3, 2026

Sovereignty Is the Option to Leave

Is your company’s AI sovereign? A practical guide for CIOs on AI vendor lock-in, EU Data Act switching, cloud sovereignty, and testing your exit plan before you need it. The post Sovereignty Is the Option to Leave appeared first on GPT-Lab.

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