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20 results for “Preconditioning”

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cs.LGcs.AIEmpiricalRecentJun 4, 2026

PC Layer: Polynomial Weight Preconditioning for Improving LLM Pre-Training

Senmiao Wang, Tiantian Fang, Haoran Zhang, Yushun Zhang +3 more

This paper proposes a preconditioning layer for stable weight conditioning in LLM training.

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cs.LGcs.AIRecentJun 1, 2026

FOAM: Frequency and Operator Error-Based Adaptive Damping Method for Reducing Staleness-Oriented Error for Shampoo

Kyunghun Nam, Sumyeong Ahn

The paper proposes FOAM, an adaptive damping method that stabilizes the Shampoo optimization algorithm by dynamically controlling damping and eigendecomposition frequency, thereby reducing staleness-i…

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cs.CVcs.CRRecentMay 5, 2026

A Deeper Dive into the Irreversibility of PolyProtect: Making Protected Face Templates Harder to Invert

Vedrana Krivokuća Hahn, Jérémy Maceiras, Sébastien Marcel

The paper enhances the security of the PolyProtect biometric template protection method by proposing a key selection algorithm that significantly increases the difficulty of inverting protected face t…

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cs.LGcs.CEphysics.comp-phRecentMay 30, 2026

An Exploratory Study into using Machine-Learning for Fast Step-by-step Emulation of Numerical Mechanical Thrombectomy Simulations for Ischemic Stroke

Thijs Stessen

This study explores using machine learning surrogates to accelerate complex numerical simulations of mechanical thrombectomy, achieving significant speedups but noting stability issues with complex ge…

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math.NAcs.CEcs.LGRecentJun 1, 2026

Physics-Informed Residuals for Adaptive Mesh Refinement in Finite-Difference PDE Solvers

Henry Kasumba, Ronald Katende

The paper proposes using a Physics-Informed Neural Network (PINN) residual as an efficient, physics-guided indicator to guide adaptive mesh refinement (AMR) for classical finite-difference PDE solvers…

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cs.CRcs.LGRecentMay 8, 2026

HEART: A High-Efficiency Adaptive Real-Time Telemonitoring Framework for Secure Electrocardiogram Signal Transmission Using Chaotic Encryption

Beyazıt Bestami Yuksel

The paper proposes a novel, highly secure real-time ECG monitoring framework that uses a patient's own ECG signal characteristics to generate unique, dynamic encryption keys, ensuring confidential dat…

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cs.LGcs.CEmath.NARecentMay 31, 2026

Cellular Sheaf Neural Operators for Structure-Preserving Surrogate Modeling of Constrained PDEs

Lennon J. Shikhman, Shane Gilbertie

The paper introduces Cellular Sheaf Neural Operators, a discretization-aware framework that models constrained PDEs by representing physical states on oriented cell complexes to enforce structure-pres…

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cs.LGcs.AIRecentMay 31, 2026

Plausibility Is Not Prediction: Contrastive Evidence for LLM-Based Cellular Perturbation Reasoning

Xinyu Yuan, Xixian Liu, Jianan Zhao, Yashi Zhang +2 more

The paper introduces CORE, a contrastive evidence organization method, which significantly improves the accuracy of LLM-based predictions of gene expression changes following cellular perturbations by…

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cs.LGcs.AIcs.CVRecentMay 28, 2026

Functional MRI Time Series Generation via Wavelet-Based Image Transform and Spectral Flow Matching for Brain Disorder Identification

Hwa Hui Tew, Junn Yong Loo, Fang Yu Leong, Julia K. Lau +5 more

The paper introduces Dual-Spectral Flow Matching (DSFM), a novel generative framework that uses wavelet and cosine transforms to synthesize highly realistic, non-stationary fMRI time series for improv…

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cs.LGcs.CLRecentMay 28, 2026

CSULoRA: Closest Safe Update Low-Rank Adaptation

Oleksandr Marchenko Breneur, Adelaide Danilov, Aria Nourbakhsh, Salima Lamsiyah

CSULoRA is a post-hoc method that corrects trained LoRA adapters by estimating a safety-aligned subspace and solving a penalized minimum-change problem to attenuate unsafe update directions while pres…

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cs.NEcs.CRRecentMay 20, 2026

Privacy-Preserving Distributed Optimization Under Time Constraints Using Secure Multi-Party Computation and Evolutionary Algorithms

Sebastian Gruber, Tobias Harzfeld, Christoph G. Schuetz, Florian Wohner +1 more

The paper proposes a novel framework combining evolutionary algorithms and Secure Multi-Party Computation (MPC) to enable privacy-preserving distributed optimization that meets strict time deadlines.

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cs.CRcs.CVRecentMay 7, 2026

Secure Seed-Based Multi-bit Watermarking for Diffusion Models from First Principles

Enoal Gesny, Eva Giboulot

The paper introduces a theoretically grounded evaluation framework for watermarking generative models, proposing a novel method (SSB) that allows for systematic design across all security-robustness-f…

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cs.CVRecentJun 1, 2026

GloResNet: A lightweight 3D CNN with global topological features for preterm brain injury prediction

Boyu Yuan, Jiamiao Lu, Weichuan Zhang, Benqing Wu +4 more

The paper proposes GloResNet, a lightweight 3D CNN that effectively predicts brain injury in preterm infants using T2-weighted MRI, achieving an average accuracy of 75.18%.

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math.NAcs.CEmath-phRecentMay 28, 2026

Multifidelity Proper Orthogonal Decomposition

Nicole Aretz, Karen Willcox

The paper introduces Multifidelity Proper Orthogonal Decomposition (MFPOD), a method that significantly reduces the computational cost of dimension reduction by intelligently combining data from cheap…

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cs.LGcs.AIRecentMay 28, 2026

HARP: Hadamard-Preconditioned Adaptive Rotation Processor for Extreme LLM Quantization

Artur Zagitov, Gleb Molodtsov, Aleksandr Beznosikov

HARP introduces a novel, adaptive, learnable orthogonal processor that significantly improves the robustness and accuracy of extreme low-bit LLM quantization compared to fixed methods.

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cs.AImath.OCRecentJun 1, 2026

Stochastic convergence of parallel asynchronous adaptive first-order methods

Serge Gratton, Philippe L. Toint

The paper analyzes a new class of asynchronous adaptive first-order optimization methods and proves their stochastic convergence rate is O(1/sqrt{t}) for non-convex functions.

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cs.LGcs.AIRecentMay 30, 2026

Memory-Efficient LLM Training with Dynamic Sparsity: From Stability to Practical Scaling

Qiao Xiao, Boqian Wu, Patrik Okanovic, Tomasz Sternal +5 more

The paper introduces Sparse Memory-Efficient Training (SMET), a method that stabilizes and optimizes Dynamic Sparse Training (DST) for large language models, enabling stable and memory-efficient spars…

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cond-mat.stat-mechcs.AIphysics.comp-phRecentMay 27, 2026

Thermodynamic properties of chemically disordered compounds via AI-driven estimation of partition function with the PULSE method

Baptiste Bernard, Luca Messina, Eiji Kawasaki, Emeric Bourasseau

The paper introduces an improved PULSE method to efficiently estimate the thermodynamic properties of chemically disordered compounds by sampling and estimating the system's partition function, demons…

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cs.ARRecentMay 28, 2026

Precomputed 1D-CNNs for Atrial Fibrillation Detection on Tiny Smart Sensor Systems

Lukas Einhaus, Natalie Maman, Julian Hoever, Andreas Erbslöh +1 more

The paper proposes a novel convolutional block and optimization algorithm to implement resource-efficient 1D-CNNs for atrial fibrillation detection on tiny smart sensor systems, achieving high accurac…

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cs.CERecentMay 27, 2026

Local Information Operators for Spatial Identifiability in Distributed-Parameter Inverse Problems in Computational Mechanics

Tammam Bakeer

This paper introduces a local information-operator framework to analyze spatial identifiability in inverse problems where spatially varying fields are inferred from heterogeneous observations.

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