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Consider the supervised learning setting where the goal is to learn to predict labels $\mathbf y$ given points $\mathbf x$ from a distribution. An \textit{omnipredictor} for a class $\mathcal L$ of loss functions and a class $\mathcal C$ of…

机器学习 · 计算机科学 2024-01-29 Parikshit Gopalan , Princewill Okoroafor , Prasad Raghavendra , Abhishek Shetty , Mihir Singhal

Large annotated datasets inevitably contain noisy labels, which poses a major challenge for training deep neural networks as they easily memorize the labels. Noise-robust loss functions have emerged as a notable strategy to counteract this…

机器学习 · 计算机科学 2025-01-28 Max Staats , Matthias Thamm , Bernd Rosenow

In this paper, we propose a balancing training method to address problems in imbalanced data learning. To this end, we derive a new loss used in the balancing training phase that alleviates the influence of samples that cause an overfitted…

计算机视觉与模式识别 · 计算机科学 2021-10-14 Seulki Park , Jongin Lim , Younghan Jeon , Jin Young Choi

This paper illustrates the central role of loss functions in data-driven decision making, providing a comprehensive survey on their influence in cost-sensitive classification (CSC) and reinforcement learning (RL). We demonstrate how…

机器学习 · 统计学 2025-04-07 Kaiwen Wang , Nathan Kallus , Wen Sun

Federated learning (FL) enables collaborative model training without exposing clients' private data, but its deployment is often constrained by the communication cost of transmitting gradients between clients and the central server,…

机器学习 · 计算机科学 2025-11-11 Zhijing Ye , Sheng Di , Jiamin Wang , Zhiqing Zhong , Zhaorui Zhang , Xiaodong Yu

Accurate medical image segmentation is often hindered by noisy labels in training data, due to the challenges of annotating medical images. Prior research works addressing noisy labels tend to make class-dependent assumptions, overlooking…

计算机视觉与模式识别 · 计算机科学 2025-01-14 Erjian Guo , Zicheng Wang , Zhen Zhao , Luping Zhou

We introduce a novel loss function for training deep learning architectures to perform classification. It consists in minimizing the smoothness of label signals on similarity graphs built at the output of the architecture. Equivalently, it…

机器学习 · 计算机科学 2019-05-02 Myriam Bontonou , Carlos Lassance , Ghouthi Boukli Hacene , Vincent Gripon , Jian Tang , Antonio Ortega

A recent article introduced thecontinuous stochastic gradient method (CSG) for the efficient solution of a class of stochastic optimization problems. While the applicability of known stochastic gradient type methods is typically limited to…

最优化与控制 · 数学 2021-11-16 Lukas Pflug , Max Grieshammer , Andrian Uihlein , Michael Stingl

Widely used loss functions for CNN segmentation, e.g., Dice or cross-entropy, are based on integrals over the segmentation regions. Unfortunately, for highly unbalanced segmentations, such regional summations have values that differ by…

图像与视频处理 · 电气工程与系统科学 2020-10-20 Hoel Kervadec , Jihene Bouchtiba , Christian Desrosiers , Eric Granger , Jose Dolz , Ismail Ben Ayed

One-class classification (OCC), which models one single positive class and distinguishes it from the negative class, has been a long-standing topic with pivotal application to realms like anomaly detection. As modern society often deals…

计算机视觉与模式识别 · 计算机科学 2021-04-28 Siqi Wang , Jiyuan Liu , Guang Yu , Xinwang Liu , Sihang Zhou , En Zhu , Yuexiang Yang , Jianping Yin

The objective learning formulation is essential for the success of convolutional neural networks. In this work, we analyse thoroughly the standard learning objective functions for multi-class classification CNNs: softmax regression (SR) for…

计算机视觉与模式识别 · 计算机科学 2019-05-15 Qi Dong , Xiatian Zhu , Shaogang Gong

Due to the inherent imbalance in real-world datasets, na\"ive Empirical Risk Minimization (ERM) tends to bias the learning process towards the majority classes, hindering generalization to minority classes. To rebalance the learning…

机器学习 · 计算机科学 2025-12-09 Zitai Wang , Qianqian Xu , Zhiyong Yang , Zhikang Xu , Linchao Zhang , Xiaochun Cao , Qingming Huang

Leave-one-out (LOO) prediction provides a principled, data-dependent measure of generalization, yet guarantees in fully transductive settings remain poorly understood beyond specialized models. We introduce Median of Level-Set Aggregation…

机器学习 · 计算机科学 2026-03-03 Jian Qian , Jiachen Xu

Many loss functions have been derived from cross-entropy loss functions such as large-margin softmax loss and focal loss. The large-margin softmax loss makes the classification more rigorous and prevents overfitting. The focal loss…

计算机视觉与模式识别 · 计算机科学 2023-02-10 Jiajie Chen

Load balancing is among the basic primitives in distributed computing. In this paper, we consider this problem when executed locally on a network with nodes prone to failures. We show that there exist lightweight network topologies that are…

分布式、并行与集群计算 · 计算机科学 2025-08-05 Dariusz R. Kowalski , Jan Olkowski

Significant advances have been made recently on training neural networks, where the main challenge is in solving an optimization problem with abundant critical points. However, existing approaches to address this issue crucially rely on a…

机器学习 · 计算机科学 2019-02-28 Weihao Gao , Ashok Vardhan Makkuva , Sewoong Oh , Pramod Viswanath

This work proposes a new loss function targeting classification problems, utilizing a source of information overlooked by cross entropy loss. First, we derive a series of the tightest upper and lower bounds for the probability of a random…

计算机视觉与模式识别 · 计算机科学 2021-10-26 Ali Ghobadzadeh , Amir Lashkari

Label distribution learning (LDL) is an interpretable and general learning paradigm that has been applied in many real-world applications. In contrast to the simple logical vector in single-label learning (SLL) and multi-label learning…

机器学习 · 计算机科学 2020-07-08 Xinyuan Liu , Jihua Zhu , Qinghai Zheng , Zhongyu Li , Ruixin Liu , Jun Wang

Bayesian Optimization (BO) is widely used for optimising black-box functions but requires us to specify the length scale hyperparameter, which defines the smoothness of the functions the optimizer will consider. Most current BO algorithms…

机器学习 · 统计学 2024-11-26 Juliusz Ziomek , Masaki Adachi , Michael A. Osborne

The notion of margin loss has been central to the development and analysis of algorithms for binary classification. To date, however, there remains no consensus as to the analogue of the margin loss for multiclass classification. In this…

机器学习 · 统计学 2024-05-20 Yutong Wang , Clayton Scott