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data science

3,686 papers

#machine learning Preprint Sep 2026

Functional dynamic mode decomposition: Learning infinite-dimensional systems from data

Dynamic mode decomposition (DMD) is a data-driven method that computes the best linear approximation of the underlying dynamical system and decomposes the dynamics into a superposition of characteristic spatiotemporal patterns. Originally introduced by the fluid dynamics community, DMD and its extensions have found wid...

Stefan Klus, Eirini Ioannou · 0 citations
#machine learning Preprint Sep 2026

Feature Space Selection and Heterogeneous Effect Estimation for Blood-Brain Barrier Permeability: A Random Forest to the Generalized Random Forest Pipeline

Evidence that LogP-BBB associations vary systematically across chemical space is insufficient underscores that feature representation and model architecture are coupled design choices, and that unorthogonalized causal forests risk overstating genuine treatment effect heterogeneity.

Tshemollo Rapolai, S. Makgai, Mohammad Arashi · 0 citations
#machine learning Preprint Sep 2026

Transformers as Cross-Task Learners: Shared Structure Drives Sample Efficiency in In-Context Learning

This work characterize task-space complexity through covering numbers under a prescribed metric, thereby quantifying the low-dimensional cross-task structure without requiring an explicit parametric representation and explicitly construct a Transformer that exploits their low-dimensional structure to perform ICL.

Zhong-Jie Shi, Rong-Jie Lai, Alexander Cloninger et al. · 1 citation
#machine learning Preprint Sep 2026

Selective Inference for Deep Clustering in Latent Spaces

An SI framework for deep clustering with a fixed pretrained encoder that provides a principled approach to quantifying the statistical reliability of structures discovered by deep clustering and enables valid statistical testing of differences between clusters identified in the latent space.

Eina Mizui, Tomohiro Shiraishi, S. Nishino et al. · 1 citation
#machine learning Preprint Sep 2026

Exact Bayes Regret and Asymptotic Optimality in High-Dimensional Gaussian Bandits

We study Bayesian linear bandits with an isotropic Gaussian parameter, independent Gaussian candidate arms, and Gaussian reward noise when the horizon is proportional to the dimension. The normalized posterior uncertainty has an explicit limit that is uniform over all causal policies. Gaussian posterior identities then...

Prakhar Singhvi, Yi Zou, Abhishek Bhattacharjee · 0 citations
#machine learning Preprint Sep 2026

Matrix Aggregation Operators

This paper analyzes the decomposability and symmetry properties of MAOs, showing that certain operators cannot be expressed in decomposable form and examining several notions of symmetry, and introduces a family of MAOs termed maximum entropy global coverage indices (MEGCIs).

Inmaculada Gutiérrez, Asier Urio-Larrea, J.Tinguaro Rodríguez et al. · 0 citations
#machine learning Preprint Sep 2026

Sequential Confidence Sets for Coverage-Constrained Conformal Model Selection

This work introduces Coverage-Constrained Sequential Model Confidence Sets (CC-SMCS), which separate certifiably feasible, possibly feasible, and possibly constrained-optimal pipelines and establishes an impossibility result for safe certification at the coverage boundary.

Jing Li, Hai-Bin Zhu · 0 citations
#machine learning Review Jul 2026

From Prediction to Explainable Provider Behavior Profiles for Fraud, Waste, and Abuse Review

Claims data can show that provider behavior changed but cannot by itself explain why. Fraud, waste, and abuse (FWA) review requires identifying material behavior, locating the codes and dollars driving it, and testing plausible explanations. Forecast residuals conflate growth, service-line shifts, code maintenance, and...

Yubin Park, Evan Brociner · 0 citations
#machine learning Preprint Sep 2026

Intrinsic-Extrinsic Coupling in Learning Dynamics

Together, these results make intrinsic-extrinsic coupling operational by connecting executable state geometry to continuation-conditioned value, matched interaction identification, and closed-loop coordination, while separating identified coupling from complete-policy performance.

Qin-You Wang · 0 citations

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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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