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Sequence-to-sequence models based on LSTM and GRU are a most popular choice for forecasting time series data reaching state-of-the-art performance. Training such models can be delicate though. The two most common training strategies within…

机器学习 · 计算机科学 2022-10-18 Philipp Teutsch , Patrick Mäder

Feature subsampling is a core component of random forests and other ensemble methods. While recent theory suggests that this randomization acts solely as a variance reduction mechanism analogous to ridge regularization, these results…

机器学习 · 统计学 2026-01-06 Xin Chen , Jason M. Klusowski , Yan Shuo Tan , Chang Yu

The extraction of useful deep features is important for many computer vision tasks. Deep features extracted from classification networks have proved to perform well in those tasks. To obtain features of greater usefulness, end-to-end…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Shota Horiguchi , Daiki Ikami , Kiyoharu Aizawa

Federated learning (FL) based magnetic resonance (MR) image reconstruction can facilitate learning valuable priors from multi-site institutions without violating patient's privacy for accelerating MR imaging. However, existing methods rely…

图像与视频处理 · 电气工程与系统科学 2023-05-11 Juan Zou , Cheng Li , Ruoyou Wu , Tingrui Pei , Hairong Zheng , Shanshan Wang

Learning discriminative deep feature embeddings by using million-scale in-the-wild datasets and margin-based softmax loss is the current state-of-the-art approach for face recognition. However, the memory and computing cost of the Fully…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Xiang An , Jiankang Deng , Jia Guo , Ziyong Feng , Xuhan Zhu , Jing Yang , Tongliang Liu

Random Fourier features (RFF) represent one of the most popular and wide-spread techniques in machine learning to scale up kernel algorithms. Despite the numerous successful applications of RFFs, unfortunately, quite little is understood…

机器学习 · 统计学 2019-02-12 Zoltan Szabo , Bharath K. Sriperumbudur

Traditional federated optimization methods perform poorly with heterogeneous data (ie, accuracy reduction), especially for highly skewed data. In this paper, we investigate the label distribution skew in FL, where the distribution of labels…

机器学习 · 计算机科学 2022-09-27 Jie Zhang , Zhiqi Li , Bo Li , Jianghe Xu , Shuang Wu , Shouhong Ding , Chao Wu

Cross-entropy loss with softmax output is a standard choice to train neural network classifiers. We give a new view of neural network classifiers with softmax and cross-entropy as mutual information evaluators. We show that when the dataset…

机器学习 · 计算机科学 2021-08-17 Zhenyue Qin , Dongwoo Kim , Tom Gedeon

Recently, learning discriminative features to improve the recognition performances gradually becomes the primary goal of deep learning, and numerous remarkable works have emerged. In this paper, we propose a novel yet extremely simple…

计算机视觉与模式识别 · 计算机科学 2018-12-03 Binghui Chen , Weihong Deng , Haifeng Shen

Continuous neural representations have recently emerged as a powerful and flexible alternative to classical discretized representations of signals. However, training them to capture fine details in multi-scale signals is difficult and…

机器学习 · 计算机科学 2022-10-06 Sifan Wang , Hanwen Wang , Jacob H. Seidman , Paris Perdikaris

Many real-world data mining applications need varying cost for different types of classification errors and thus call for cost-sensitive classification algorithms. Existing algorithms for cost-sensitive classification are successful in…

机器学习 · 计算机科学 2017-10-27 Te-Kang Jan , Da-Wei Wang , Chi-Hung Lin , Hsuan-Tien Lin

Scalable Gaussian Process methods are computationally attractive, yet introduce modeling biases that require rigorous study. This paper analyzes two common techniques: early truncated conjugate gradients (CG) and random Fourier features…

机器学习 · 计算机科学 2021-06-30 Andres Potapczynski , Luhuan Wu , Dan Biderman , Geoff Pleiss , John P. Cunningham

Accelerating neural radiance fields training is of substantial practical value, as the ray sampling strategy profoundly impacts network convergence. More efficient ray sampling can thus directly enhance existing NeRF models' training…

计算机视觉与模式识别 · 计算机科学 2023-08-31 Shilei Sun , Ming Liu , Zhongyi Fan , Yuxue Liu , Chengwei Lv , Liquan Dong , Lingqin Kong

We propose a Fourier-based learning algorithm for highly nonlinear multiclass classification. The algorithm is based on a smoothing technique to calculate the probability distribution of all classes. To obtain the probability distribution,…

机器学习 · 计算机科学 2022-11-17 Soheil Mehrabkhani

Random forest (RF) stands out as a highly favored machine learning approach for classification problems. The effectiveness of RF hinges on two key factors: the accuracy of individual trees and the diversity among them. In this study, we…

机器学习 · 计算机科学 2024-10-28 Ye-eun Kim , Seoung Yun Kim , Hyunjoong Kim

While training fair machine learning models has been studied extensively in recent years, most developed methods rely on the assumption that the training and test data have similar distributions. In the presence of distribution shifts, fair…

机器学习 · 计算机科学 2023-09-22 Sina Baharlouei , Meisam Razaviyayn

The softmax function is a fundamental component in deep learning. This study delves into the often-overlooked parameter within the softmax function, known as "temperature," providing novel insights into the practical and theoretical aspects…

机器学习 · 计算机科学 2025-03-03 Hao Xuan , Bokai Yang , Xingyu Li

Adversarial training has shown promise in building robust models against adversarial examples. A major drawback of adversarial training is the computational overhead introduced by the generation of adversarial examples. To overcome this…

计算机视觉与模式识别 · 计算机科学 2023-10-25 Xiaojun Jia , Jianshu Li , Jindong Gu , Yang Bai , Xiaochun Cao

Software fault prediction (SFP) is a critical task in software engineering, enabling early identification of faults in modules to improve software quality and reduce maintenance costs. This research investigates the combined effects of…

Randomized smoothing is a technique for providing provable robustness guarantees against adversarial attacks while making minimal assumptions about a classifier. This method relies on taking a majority vote of any base classifier over…

机器学习 · 计算机科学 2023-05-09 Ambar Pal , Jeremias Sulam