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Various logit-adjusted parameterizations of the cross-entropy (CE) loss have been proposed as alternatives to weighted CE for training large models on label-imbalanced data far beyond the zero train error regime. The driving force behind…

机器学习 · 计算机科学 2023-03-15 Tina Behnia , Ganesh Ramachandra Kini , Vala Vakilian , Christos Thrampoulidis

Ordinal regression is a classification task where classes have an order and prediction error increases the further the predicted class is from the true class. The standard approach for modeling ordinal data involves fitting parallel…

机器学习 · 计算机科学 2022-02-16 Fred Lu , Francis Ferraro , Edward Raff

In binary classification, imbalance refers to situations in which one class is heavily under-represented. This issue is due to either a data collection process or because one class is indeed rare in a population. Imbalanced classification…

统计方法学 · 统计学 2022-01-07 Arezou Mojiri , Abbas Khalili , Ali Zeinal Hamadani

Approximate Bayesian inference for the class of latent Gaussian models can be achieved efficiently with integrated nested Laplace approximations (INLA). Based on recent reformulations in the INLA methodology, we propose a further extension…

统计方法学 · 统计学 2025-02-27 Shourya Dutta , Janet van Niekerk , Haavard Rue

Transformer models have become foundational across a wide range of scientific and engineering domains due to their strong empirical performance. A key capability underlying their success is in-context learning (ICL): when presented with a…

机器学习 · 计算机科学 2026-04-29 Zhen Qin , Jiachen Jiang , Zhihui Zhu

Deep convolutional neural networks (CNNs) trained with logistic and softmax losses have made significant advancement in visual recognition tasks in computer vision. When training data exhibit class imbalances, the class-wise reweighted…

机器学习 · 计算机科学 2020-03-06 Xiangrui Li , Xin Li , Deng Pan , Dongxiao Zhu

This paper explores connections between margin-based loss functions and consistency in binary classification and regression applications. It is shown that a large class of margin-based loss functions for binary classification/regression…

机器学习 · 统计学 2023-01-30 Jeffrey Buzas

Cross-entropy is a widely used loss function in applications. It coincides with the logistic loss applied to the outputs of a neural network, when the softmax is used. But, what guarantees can we rely on when using cross-entropy as a…

机器学习 · 计算机科学 2023-06-21 Anqi Mao , Mehryar Mohri , Yutao Zhong

Deep learning systems are prone to catastrophic forgetting when learning from a sequence of tasks, as old data from previous tasks is unavailable when learning a new task. To address this, some methods propose replaying data from previous…

计算机视觉与模式识别 · 计算机科学 2025-03-11 Chenyang Wang , Junjun Jiang , Xingyu Hu , Xianming Liu , Xiangyang Ji

We propose a novel loss function for imbalanced classification. LDAM loss, which minimizes a margin-based generalization bound, is widely utilized for class-imbalanced image classification. Although, by using LDAM loss, it is possible to…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Sota Kato , Kazuhiro Hotta

Pattern recognition applications often suffer from skewed data distributions between classes, which may vary during operations w.r.t. the design data. Two-class classification systems designed using skewed data tend to recognize the…

机器学习 · 计算机科学 2019-12-02 Roghayeh Soleymani , Eric Granger , Giorgio Fumera

We study the estimation capacity of the generalized Lasso, i.e., least squares minimization combined with a (convex) structural constraint. While Lasso-type estimators were originally designed for noisy linear regression problems, it has…

统计理论 · 数学 2019-09-12 Martin Genzel , Gitta Kutyniok

Although binary classification is a well-studied problem in computer vision, training reliable classifiers under severe class imbalance remains a challenging problem. Recent work has proposed techniques that mitigate the effects of training…

机器学习 · 计算机科学 2024-06-06 Kelsey Lieberman , Shuai Yuan , Swarna Kamlam Ravindran , Carlo Tomasi

We propose a robust adversarial prediction framework for general multiclass classification. Our method seeks predictive distributions that robustly optimize non-convex and non-continuous multiclass loss metrics against the worst-case…

Complementary-label learning (CLL) is widely used in weakly supervised classification, but it faces a significant challenge in real-world datasets when confronted with class-imbalanced training samples. In such scenarios, the number of…

机器学习 · 计算机科学 2024-03-21 Meng Wei , Yong Zhou , Zhongnian Li , Xinzheng Xu

We propose a new scalable multi-class Gaussian process classification approach building on a novel modified softmax likelihood function. The new likelihood has two benefits: it leads to well-calibrated uncertainty estimates and allows for…

机器学习 · 统计学 2019-05-24 Théo Galy-Fajou , Florian Wenzel , Christian Donner , Manfred Opper

In this paper, we propose a fuzzy adaptive loss function for enhancing deep learning performance in classification tasks. Specifically, we redefine the cross-entropy loss to effectively address class-level noise conditions, including the…

机器学习 · 计算机科学 2023-10-13 Sebastián Maldonado , Carla Vairetti , Katherine Jara , Miguel Carrasco , Julio López

Despite being the standard loss function to train multi-class neural networks, the log-softmax has two potential limitations. First, it involves computations that scale linearly with the number of output classes, which can restrict the size…

机器学习 · 计算机科学 2016-05-30 Alexandre de Brébisson , Pascal Vincent

Distribution shifts between sites can seriously degrade model performance since models are prone to exploiting unstable correlations. Thus, many methods try to find features that are stable across sites and discard unstable features.…

机器学习 · 计算机科学 2024-09-11 Minh Nguyen , Alan Q. Wang , Heejong Kim , Mert R. Sabuncu

Deep-learning has proved in recent years to be a powerful tool for image analysis and is now widely used to segment both 2D and 3D medical images. Deep-learning segmentation frameworks rely not only on the choice of network architecture but…

计算机视觉与模式识别 · 计算机科学 2017-09-19 Carole H Sudre , Wenqi Li , Tom Vercauteren , Sébastien Ourselin , M. Jorge Cardoso