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Recently, several studies have proven the global convergence and generalization abilities of the gradient descent method for two-layer ReLU networks. Most studies especially focused on the regression problems with the squared loss function,…

机器学习 · 统计学 2020-03-19 Atsushi Nitanda , Geoffrey Chinot , Taiji Suzuki

Theoretical analysis of the error landscape of deep neural networks has garnered significant interest in recent years. In this work, we theoretically study the importance of noise in the trajectories of gradient descent towards optimal…

机器学习 · 计算机科学 2018-07-24 Adepu Ravi Sankar , Vishwak Srinivasan , Vineeth N Balasubramanian

Binary Neural Networks (BNNs) rely on a real-valued auxiliary variable W to help binary training. However, pioneering binary works only use W to accumulate gradient updates during backward propagation, which can not fully exploit its power…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Weixiang Xu , Qiang Chen , Xiangyu He , Peisong Wang , Jian Cheng

Natural Gradient Descent (NGD) is a second-order neural network training that preconditions the gradient descent with the inverse of the Fisher Information Matrix (FIM). Although NGD provides an efficient preconditioner, it is not…

机器学习 · 计算机科学 2022-10-12 Tran Van Sang , Mhd Irvan , Rie Shigetomi Yamaguchi , Toshiyuki Nakata

Many researchers collect data from the internet through crowd-sourcing or web crawling to alleviate the data-hungry challenge associated with cross-modal matching. Although such practice does not require expensive annotations, it inevitably…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Fan Liu , Chenwei Dong , Chuanyi Zhang , Hualiang Zhou , Jun Zhou

Recent research has demonstrated that transformers, particularly linear attention models, implicitly execute gradient-descent-like algorithms on data provided in-context during their forward inference step. However, their capability in…

机器学习 · 计算机科学 2024-10-31 Max Vladymyrov , Johannes von Oswald , Mark Sandler , Rong Ge

As the state-of-the-art machine learning methods in many fields rely on larger datasets, storing datasets and training models on them become significantly more expensive. This paper proposes a training set synthesis technique for…

计算机视觉与模式识别 · 计算机科学 2021-03-09 Bo Zhao , Konda Reddy Mopuri , Hakan Bilen

Deep neural networks achieve state-of-the-art and sometimes super-human performance across various domains. However, when learning tasks sequentially, the networks easily forget the knowledge of previous tasks, known as "catastrophic…

计算机视觉与模式识别 · 计算机科学 2021-05-18 Shixiang Tang , Dapeng Chen , Jinguo Zhu , Shijie Yu , Wanli Ouyang

We theoretically study the fundamental problem of learning a single neuron with a bias term ($\mathbf{x} \mapsto \sigma(<\mathbf{w},\mathbf{x}> + b)$) in the realizable setting with the ReLU activation, using gradient descent. Perhaps…

机器学习 · 计算机科学 2022-02-08 Gal Vardi , Gilad Yehudai , Ohad Shamir

Machine Unlearning aims to remove specific data from trained models, addressing growing privacy and ethical concerns. We provide a theoretical analysis of a simple and widely used method - gradient ascent - used to reverse the influence of…

机器学习 · 计算机科学 2025-10-17 Odelia Melamed , Gilad Yehudai , Gal Vardi

Small neural networks with a constrained number of trainable parameters, can be suitable resource-efficient candidates for many simple tasks, where now excessively large models are used. However, such models face several problems during the…

机器学习 · 计算机科学 2021-09-21 Alexander Kovalenko , Pavel Kordík , Magda Friedjungová

In recent years, deep neural networks have found success in replicating human-level cognitive skills, yet they suffer from several major obstacles. One significant limitation is the inability to learn new tasks without forgetting previously…

机器学习 · 计算机科学 2019-08-20 Gabrielle K. Liu

Machine unlearning, the efficient deletion of the impact of specific data in a trained model, remains a challenging problem. Current machine unlearning approaches that focus primarily on data-centric or weight-based strategies frequently…

机器学习 · 计算机科学 2025-08-07 Thang Duc Tran , Thai Hoang Le

Modern deep neural networks rely heavily on massive model weights and training samples, incurring substantial computational costs. Weight pruning and coreset selection are two emerging paradigms proposed to improve computational efficiency.…

机器学习 · 计算机科学 2025-11-18 Weilin Wan , Fan Yi , Weizhong Zhang , Quan Zhou , Cheng Jin

Gradient descent typically converges to a single minimum of the training loss without mechanisms to explore alternative minima that may generalize better. Searching for diverse minima directly in high-dimensional parameter space is…

机器学习 · 计算机科学 2025-09-16 Akshay Vegesna , Samip Dahal

We consider the approximation of functions by 2-layer neural networks with a small number of hidden weights based on the squared loss and small datasets. Due to the highly non-convex energy landscape, gradient-based training often suffers…

机器学习 · 计算机科学 2025-08-14 Johannes Hertrich , Sebastian Neumayer

Modern deep models are often pretrained on large-scale data with missing labels using composite objectives, where the relative weights of multiple loss terms act as hyperparameters. Tuning these weights with random search or Bayesian…

机器学习 · 计算机科学 2026-05-11 Ivan Karpukhin , Andrey Savchenko

We propose a diffractive neural network with strong robustness based on Weight Noise Injection training, which achieves accurate and fast optical-based classification while diffraction layers have a certain amount of surface shape error. To…

图像与视频处理 · 电气工程与系统科学 2020-06-23 Jiashuo Shi

Deep neural networks have been shown to be very powerful modeling tools for many supervised learning tasks involving complex input patterns. However, they can also easily overfit to training set biases and label noises. In addition to…

机器学习 · 计算机科学 2019-05-07 Mengye Ren , Wenyuan Zeng , Bin Yang , Raquel Urtasun

Convolutional Neural Networks (CNNs) are supposed to be fed with only high-quality annotated datasets. Nonetheless, in many real-world scenarios, such high quality is very hard to obtain, and datasets may be affected by any sort of image…

计算机视觉与模式识别 · 计算机科学 2023-07-13 Francesco Ponzio , Enrico Macii , Elisa Ficarra , Santa Di Cataldo