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20 results for “deep learning, image classifiers, Fourier phase, magnitude, asymmetry”

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cs.LGstat.MLTheoreticalRecentJun 9, 2026

Limitations of Learning Tanh Neural Networks with Finite Precision

Philipp Grohs, Matěj Trödler

This paper investigates limitations of learning tanh neural networks under finite-precision computations and Lp accuracy guarantees.

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cs.CVcs.AIcs.LGNEWEmpiricalJun 15, 2026

The Importance of Phase in Neural Representations: An Internal Oppenheim-Lim Test of Image Classifiers

Alper Yıldırım

This paper investigates whether deep learning models retain the phase/sign asymmetry of natural images in their hidden layers and tests it causally.

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cs.LGRecentJun 1, 2026

Expressivity of congruence-based architectures for DNNs on positive-definite matrices

Antonin Oswald, Estelle Massart

The paper analyzes congruence-based neural architectures for classifying positive-definite matrices, demonstrating that common semi-orthogonality constraints severely limit the model's expressivity.

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cs.CVcs.AIcs.CRRecentMay 20, 2026

Comparative Evaluation of Deep Learning Models for Fake Image Detection

Akhitha Pakala, Mohammed Mahir Rahman, Shahzad Memon, Tauseef Ahmed

This study comparatively evaluates four CNN architectures (VGG16, ResNet50, EfficientNetB0, and XceptionNet) for fake image detection, finding VGG16 achieved the highest accuracy (91%).

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cs.CRcs.LGRecentApr 7, 2026

Adversarial Robustness of Time-Series Classification for Crystal Collimator Alignment

Xaver Fink, Borja Fernandez Adiego, Daniele Mirarchi, Eloise Matheson +3 more

This paper enhances the adversarial robustness of a CNN used for time-series classification in crystal-collimator alignment by developing a differentiable wrapper and employing adversarial fine-tuning…

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cs.CVcs.AIcs.LGRecentMay 27, 2026

Do We Really Need Quantum Machine Learning?: A Multidimensional Empirical Study

Sudip Vhaduri, Ryan Gammon, Sayanton Dibbo

This study empirically benchmarks classical and quantum machine learning models for image recognition, finding that while quantum models offer superior accuracy and resource efficiency at high dimensi…

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cs.NEEmpiricalRecentJun 12, 2026

A Programmer's Guide to Cascaded Adaptive Combiners: Online Learning by Biologically Accurate Models of Multilayer Neuron Networks

Martin Nilsson, Denis Kleyko

This paper introduces a mechanistic neuronal network model for multilayer learning, offering biological insights and an alternative to backpropagation.

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cs.LGcs.AIRecentMay 28, 2026

DAMEL: Dual-Axis Multi-Expert Learning for Class-Imbalanced Learning

Hyuck Lee, Taemin Park, Heeyoung Kim

The paper proposes DAMEL, a dual-axis multi-expert learning algorithm that simultaneously reduces both prediction bias and variance in class-imbalanced learning by leveraging multiple experts across b…

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cs.LGcs.AIstat.MLRecentMay 28, 2026

CalArena: A Large-Scale Post-Hoc Calibration Benchmark

Eugène Berta, David Holzmüller, Francis Bach, Michael I. Jordan

The paper introduces CalArena, a large-scale, standardized benchmark covering nearly 2000 experiments to comprehensively evaluate post-hoc calibration methods, finding that smooth calibration function…

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cs.LGcs.AIRecentMay 30, 2026

Demystifying the Optimal Fair Classifier in Multi-Class Classification

Li Zhang, Yuyuan Li, XiaoHua Feng, Jiaming Zhang +2 more

This paper addresses the challenge of achieving optimal fairness and accuracy simultaneously in multi-class classification by proposing novel in-processing and post-processing algorithms that converge…

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cs.LGcs.AIcs.CVRecentMay 28, 2026

How Much Is a Dataset Worth? Scaling Laws, the Vendi Score, and Matrix Spectral Functions

Jeff A. Bilmes, Gantavya Bhatt, Arnav M. Das

The paper introduces and analyzes several novel data appraisal metrics, including the Vendi Score and matrix spectral functions, demonstrating that efficient optimization techniques make these metrics…

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cs.CVRecentJun 1, 2026

Symmetry-Aware 9D Pose Estimation with Sim(3)-Consistent Feature and Spherical Inception Convolution

Panfei Cheng, Hongshan Yu, Wenrui Chen, Xiaojun Tang +2 more

The paper proposes a novel symmetry-aware, category-level method for 9D object pose estimation that accurately estimates translation and size first, followed by rotation, achieving state-of-the-art re…

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cs.CVcs.AIRecentMay 28, 2026

Rethinking FID Through the Geometry of the Reference Dataset

Yunghee Lee, Byeonghyun Pak

The paper argues that the standard FID metric is unreliable because its performance depends significantly on the geometric structure and density of the reference dataset, not just the sample quality.

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cs.CRRecentApr 22, 2026

Image-Based Malware Type Classification on MalNet-Image Tiny: Effects of Multi-Scale Fusion, Transfer Learning, Data Augmentation, and Schedule-Free Optimization

Ahmed A. Abouelkhaire, Waleed A. Yousef, Issa Traor

The paper investigates improving 43-class malware type classification on MalNet-Image Tiny by evaluating the combined effects of multi-scale feature fusion, transfer learning, advanced data augmentati…

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cs.PFcs.ARRecentMay 27, 2026

Range, Not Precision: Block-Floating-Point Half-Precision FFT and SAR Imaging on Apple Silicon

Mohamed Amine Bergach

The paper demonstrates that for FFT-based radar imaging on Apple Silicon, the limiting factor for half-precision (FP16) is dynamic range, not mantissa precision, and proposes a block-floating-point (B…

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cs.CCcs.LGcs.LORecentMay 28, 2026

The Complexity of Verifying Feedforward Neural Networks in Quantised Settings

Eric Alsmann, Martin Lange, Marco Sälzer

This paper analyzes the computational complexity of verifying feedforward neural networks when their weights are restricted to finite-width arithmetic, finding that verification remains NP-complete fo…

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cs.LGcs.AIRecentMay 28, 2026

Automatically Differentiable Nonlinear Tensor Networks (ADNTNs) for Exponential Compression of Deep Neural Networks

Andrzej Cichocki, Michal Wietczak

The paper introduces Automatically Differentiable Nonlinear Tensor Networks (ADNTNs) to achieve massive, structured compression of deep neural networks, demonstrating compression ratios up to 77,000x…

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cs.LGcs.CLeess.SPRecentMay 31, 2026

Beyond Sinusoids: A Morlet Wavelet Framework for Transformer Positional Encoding

Athanasios Zeris

The paper introduces Morlet Positional Encoding (MoPE), a novel wavelet-based positional encoding that models position and locality simultaneously, outperforming standard sinusoidal and RoPE 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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