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Variational regularization is a classical technique to solve statistical inference tasks and inverse problems, with modern data-driven approaches parameterizing regularizers via deep neural networks showcasing impressive empirical…

机器学习 · 计算机科学 2024-09-30 Oscar Leong , Eliza O'Reilly , Yong Sheng Soh

We present the SCR framework for enhancing the training of graph neural networks (GNNs) with consistency regularization. Regularization is a set of strategies used in Machine Learning to reduce overfitting and improve the generalization…

社会与信息网络 · 计算机科学 2022-06-14 Chenhui Zhang , Yufei He , Yukuo Cen , Zhenyu Hou , Wenzheng Feng , Yuxiao Dong , Xu Cheng , Hongyun Cai , Feng He , Jie Tang

Bootstrapping is behind much of the successes of Deep Reinforcement Learning. However, learning the value function via bootstrapping often leads to unstable training due to fast-changing target values. Target Networks are employed to…

Maintaining numerical stability in machine learning models is crucial for their reliability and performance. One approach to maintain stability of a network layer is to integrate the condition number of the weight matrix as a regularizing…

机器学习 · 计算机科学 2024-10-02 Rossen Nenov , Daniel Haider , Peter Balazs

The large capacity of neural networks enables them to learn complex functions. To avoid overfitting, networks however require a lot of training data that can be expensive and time-consuming to collect. A common practical approach to…

机器学习 · 计算机科学 2020-03-10 Majed El Helou , Frederike Dümbgen , Sabine Süsstrunk

This paper investigates how various randomization techniques impact Deep Neural Networks (DNNs). Randomization, like weight noise and dropout, aids in reducing overfitting and enhancing generalization, but their interactions are poorly…

Deep reinforcement learning (RL) algorithms suffer severe performance degradation when the interaction data is scarce, which limits their real-world application. Recently, visual representation learning has been shown to be effective and…

机器学习 · 计算机科学 2022-08-17 Yang Yue , Bingyi Kang , Zhongwen Xu , Gao Huang , Shuicheng Yan

Loss of plasticity, trainability loss, and primacy bias have been identified as issues arising when training deep neural networks on sequences of tasks -- all referring to the increased difficulty in training on new tasks. We propose to use…

机器学习 · 计算机科学 2024-12-11 Wesley Chung , Lynn Cherif , David Meger , Doina Precup

Deep learning requires regularization mechanisms to reduce overfitting and improve generalization. We address this problem by a new regularization method based on distributional robust optimization. The key idea is to modify the…

We propose an effective regularization strategy (CW-TaLaR) for solving continual learning problems. It uses a penalizing term expressed by the Cramer-Wold distance between two probability distributions defined on a target layer of an…

机器学习 · 计算机科学 2021-11-16 Marcin Mazur , Łukasz Pustelnik , Szymon Knop , Patryk Pagacz , Przemysław Spurek

Intermediate features at different layers of a deep neural network are known to be discriminative for visual patterns of different complexities. However, most existing works ignore such cross-layer heterogeneities when classifying samples…

计算机视觉与模式识别 · 计算机科学 2016-07-20 Xiaojie Jin , Yunpeng Chen , Jian Dong , Jiashi Feng , Shuicheng Yan

Existing facial image super-resolution (SR) methods focus mostly on improving artificially down-sampled low-resolution (LR) imagery. Such SR models, although strong at handling artificial LR images, often suffer from significant performance…

计算机视觉与模式识别 · 计算机科学 2020-01-01 Zhiyi Cheng , Xiatian Zhu , Shaogang Gong

Regularization is crucial to the success of many practical deep learning models, in particular in a more often than not scenario where there are only a few to a moderate number of accessible training samples. In addition to weight decay,…

机器学习 · 计算机科学 2018-08-07 Che-Wei Huang , Shrikanth S. Narayanan

Machine learning techniques for the solution of inverse problems have become an attractive approach in the last decade, while their theoretical foundations are still in their infancy. In this chapter we want to pursue the study of…

数值分析 · 数学 2025-12-10 Martin Burger , Samira Kabri , Gitta Kutyniok , Yunseok Lee , Lukas Weigand

Variational regularization is commonly used to solve linear inverse problems, and involves augmenting a data fidelity by a regularizer. The regularizer is used to promote a priori information and is weighted by a regularization parameter.…

最优化与控制 · 数学 2024-01-23 Matthias J. Ehrhardt , Silvia Gazzola , Sebastian J. Scott

Deep Neural Networks (DNNs) have been widely used in software making decisions impacting people's lives. However, they have been found to exhibit severe erroneous behaviors that may lead to unfortunate outcomes. Previous work shows that…

机器学习 · 计算机科学 2022-04-05 Ziyuan Zhong , Yuchi Tian , Conor J. Sweeney , Vicente Ordonez , Baishakhi Ray

Deep artificial neural networks have made remarkable progress in different tasks in the field of computer vision. However, the empirical analysis of these models and investigation of their failure cases has received attention recently. In…

计算机视觉与模式识别 · 计算机科学 2016-02-10 Babak Saleh , Ahmed Elgammal , Jacob Feldman

We address a learning-to-normalize problem by proposing Switchable Normalization (SN), which learns to select different normalizers for different normalization layers of a deep neural network. SN employs three distinct scopes to compute…

计算机视觉与模式识别 · 计算机科学 2019-07-25 Ping Luo , Ruimao Zhang , Jiamin Ren , Zhanglin Peng , Jingyu Li

Sequential learning, also called lifelong learning, studies the problem of learning tasks in a sequence with access restricted to only the data of the current task. In this paper we look at a scenario with fixed model capacity, and…

机器学习 · 统计学 2019-04-15 Rahaf Aljundi , Marcus Rohrbach , Tinne Tuytelaars

Despite their impressive performance, Deep Neural Networks (DNNs) typically underperform Gradient Boosting Trees (GBTs) on many tabular-dataset learning tasks. We propose that applying a different regularization coefficient to each weight…

机器学习 · 统计学 2018-10-25 Ira Shavitt , Eran Segal