Skip to content

Category

data science

3,683 papers

#machine learning Preprint Open access Nov 2026

Identifying Neural Dynamics Using Nonlinear Interventional State Space Models

State-space models (SSMs) recover low-dimensional latent dynamics from high-dimensional observations, but latents are generally not identifiable from observational data alone. Interventional state-space models (iSSMs) use perturbations to break observational symmetries and identify parameters up to permutation, scaling...

Hanna M. Tolle, Carles Balsells-Rodas, Yixin Wang et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Joint Modeling of Conditional Mean and Variability in Multilevel Functional Data: Application to Postprandial Glucose Trajectories in the AEGIS Study

Functional data analysis provides a framework for studying time-varying associations between covariates and high-frequency biological signals. In digital health, participants often contribute repeated functional trajectories, yet existing multilevel regression methods largely focus on the conditional mean, overlooking...

Yang Xiao, Francisco Gude, Marcos Matabuena · 0 citations
#machine learning Preprint Open access Nov 2026

Last-Iterate Convergence of Stochastic Gradient Methods for Unbounded Problems

Last-iterate convergence guarantees for stochastic gradient methods have attracted significant attention as practical implementations typically return the last iterate instead of an average of the iterates. In this paper, we study two approaches for analyzing the last-iterate convergence of proximal and projected stoch...

Kevin Kurian Thomas Vaidyan, Ahmet Alacaoglu, Michael P. Friedlander · 0 citations
#machine learning Preprint Open access Nov 2026

Task-Calibrated Random Features via Influence-Based Error Cancellation

Random features approximate kernel integrals by Monte Carlo, yet only selected frequency-sampling errors affect a downstream task. We propose Task-Calibrated Random Features (TCRF), which balance frequency moments constructed from task-specific influence using weights shared across kernel entries. Closed-form weights c...

Shinto Eguchi · 0 citations
#machine learning Preprint Open access Nov 2026

ShapleyOG: Fast Adaptive Shapley Value Estimation with Odd Gaussian Processes

Shapley values are a central tool for attribution in machine learning. Since their exact computation requires evaluating the cooperative game to be explained on exponentially many player coalitions, they are typically estimated from a limited number of evaluations. Recently, ShaplEIG has shown that adaptively selecting...

David Rundel, R. Teal Witter, Santo M. A. R. Thies et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Bayesian Tensor Train Kernel Machines with Automatic Model Complexity Inference

Tensor Network (TN) kernel machines accelerate supervised learning by using low-rank TNs to reduce computation and memory. However, most TN-based methods are deterministic with manually tuned ranks and feature dimensions, while the existing Bayesian TN kernel machine is restricted to the CANDECOMP/PARAFAC decomposition...

Afra Kilic, Kim Batselier · 0 citations
#machine learning Preprint Open access Nov 2026

ToroFit: Fitting Wedge Sums of Tori to High-Dimensional Data

Data arising in scientific applications often exhibits complex nonlinear structure. Identifying and parameterizing said nonlinearities can enable better modeling, enhance predictive analysis, data interpolation, denoising, and anomaly detection. In this paper, we develop theoretical and computational methods to detect...

Tanishq Bhatia, Jose A. Perea, Tarek M. Zikry · 0 citations
#machine learning Preprint Open access Nov 2026

Spectral and Subspace Dynamics of LoRA in Supervised Fine-Tuning and Reinforcement Learning

Low-rank adaptation (LoRA) is commonly used in both supervised fine-tuning (SFT) and reinforcement learning (RL), often under similar optimizer settings. Yet, how the different dynamics of the two stages manifest in the low-rank increment that LoRA optimizes remains unclear. Tracking the singular spectrum and subspaces...

Chenruo Liu, Zihan Wang, Yijun Dong et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Conformal Prediction for Time-Dependent PDEs

Uncertainty quantification is crucial in scientific machine learning, where models inform safety-critical tasks such as flood forecasting, financial risk management, and thermal control in machines. Conformal prediction provides distribution-free coverage guarantees, but in time-dependent settings common to physics and...

Joshua Stiller, Annika Schneider, Eyke H\"ullermeier · 0 citations
#machine learning Preprint Open access Nov 2026

BUMP: Brief Unexpected Mid-Interpolation Peak

We identify an intriguing phenomenon when linearly interpolating between permutation-aligned neural networks: test accuracy briefly improves near the interpolation endpoints before dropping toward the midpoint, which we term BUMP (Brief Unexpected Mid-interpolation Peak). We observe that BUMP appears consistently acros...

Melinda Fl\'ora Kiss, M\'arton Muntag, Adri\'an Csisz\'arik et al. · 0 citations
#machine learning Preprint Open access Nov 2026

Optimal Learning in Games with Arbitrary Delays: Best-of-Both-Worlds for Self-Play and Adversarial Opponents

We study learning in zero-sum games with delayed feedback. We introduce Multi-Anchor Optimistic Online Mirror Descent (MAO-OMD), a single algorithm which obtains optimal fast rates in self-play on smooth games, while simultaneously maintaining minimax optimal guarantees against arbitrary opponents. In particular, in sm...

Emmanuel Esposito, Andrew Jacobsen, Hao Qiu et al. · 0 citations
#artificial intelligence Preprint Open access Nov 2026

Fast Rates for Offline Contextual Bandits with Forward-KL Regularization under Single-Policy Concentrability

\emph{Kullback-Leibler} (KL) regularization is ubiquitous in reinforcement learning algorithms in the form of \emph{reverse} or \emph{forward} KL. Recent studies have demonstrated $\epsilon^{-1}$-type fast rates for decision making under reverse KL regularization, in contrast to the standard $\epsilon^{-2}$-type sample...

Qingyue Zhao, Kaixuan Ji, Heyang Zhao et al. · 0 citations

From tech blogs

See all →
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.

We use cookies to run the site and, with your consent, for analytics and to show ads. See our Cookie Policy.