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One of the most common methods to train machine learning algorithms today is the stochastic gradient descent (SGD). In a distributed setting, SGD-based algorithms have been shown to converge theoretically under specific circumstances. A…

机器学习 · 计算机科学 2025-08-22 Soumya Sarkar , Shweta Jain

Knowledge distillation (KD) is an effective framework that aims to transfer meaningful information from a large teacher to a smaller student. Generally, KD often involves how to define and transfer knowledge. Previous KD methods often focus…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Chuanguang Yang , Zhulin An , Linhang Cai , Yongjun Xu

In this paper we present a new approach of incorporating kernels into dictionary learning. The kernel K-SVD algorithm (KKSVD), which has been introduced recently, shows an improvement in classification performance, with relation to its…

计算机视觉与模式识别 · 计算机科学 2016-05-25 Alona Golts , Michael Elad

Unsupervised out-of-distribution (OOD) detection aims to identify out-of-domain data by learning only from unlabeled In-Distribution (ID) training samples, which is crucial for developing a safe real-world machine learning system. Current…

计算机视觉与模式识别 · 计算机科学 2026-02-03 Ying Yang , De Cheng , Chaowei Fang , Yubiao Wang , Changzhe Jiao , Lechao Cheng , Nannan Wang

As point cloud data increases in prevalence in a variety of applications, the ability to detect out-of-distribution (OOD) point cloud objects becomes critical for ensuring model safety and reliability. However, this problem remains…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Adam Goodge , Xun Xu , Bryan Hooi , Wee Siong Ng , Jingyi Liao , Yongyi Su , Xulei Yang

In this paper, we use tools from rate-distortion theory to establish new upper bounds on the generalization error of statistical distributed learning algorithms. Specifically, there are $K$ clients whose individually chosen models are…

机器学习 · 统计学 2022-11-23 Milad Sefidgaran , Romain Chor , Abdellatif Zaidi

The sparsity of signals in a transform domain or dictionary has been exploited in applications such as compression, denoising and inverse problems. More recently, data-driven adaptation of synthesis dictionaries has shown promise compared…

机器学习 · 计算机科学 2019-06-14 Saiprasad Ravishankar , Raj Rao Nadakuditi , Jeffrey A. Fessler

The convenience of 3D sensors has led to an increase in the use of 3D point clouds in various applications. However, the differences in acquisition devices or scenarios lead to divergence in the data distribution of point clouds, which…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Zhimin Zhang , Xiang Gao , Wei Hu

This paper considers a general data-fitting problem over a networked system, in which many computing nodes are connected by an undirected graph. This kind of problem can find many real-world applications and has been studied extensively in…

机器学习 · 计算机科学 2017-04-14 Ying Zhang

Out-of-distribution (OOD) detection in 3D point cloud data remains a challenge, particularly in applications where safe and robust perception is critical. While existing OOD detection methods have shown progress for 2D image data, extending…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Tiankai Chen , Yushu Li , Adam Goodge , Fei Teng , Xulei Yang , Tianrui Li , Xun Xu

Machine learning algorithms typically assume that the training and test samples come from the same distributions, i.e., in-distribution. However, in open-world scenarios, streaming big data can be Out-Of-Distribution (OOD), rendering these…

机器学习 · 计算机科学 2022-11-10 Anique Tahir , Lu Cheng , Ruocheng Guo , Huan Liu

This paper presents a solution to the cross-domain adaptation problem for 2D surgical image segmentation, explicitly considering the privacy protection of distributed datasets belonging to different centers. Deep learning architectures in…

计算机视觉与模式识别 · 计算机科学 2023-06-16 Ronast Subedi , Rebati Raman Gaire , Sharib Ali , Anh Nguyen , Danail Stoyanov , Binod Bhattarai

Unsupervised Domain Adaptation (UDA) addresses the problem of performance degradation due to domain shift between training and testing sets, which is common in computer vision applications. Most existing UDA approaches are based on…

计算机视觉与模式识别 · 计算机科学 2019-05-14 Songsong Wu , Yan Yan , Hao Tang , Jianjun Qian , Jian Zhang , Xiao-Yuan Jing

Existing approaches to unsupervised object discovery (UOD) do not scale up to large datasets without approximations that compromise their performance. We propose a novel formulation of UOD as a ranking problem, amenable to the arsenal of…

计算机视觉与模式识别 · 计算机科学 2021-11-18 Huy V. Vo , Elena Sizikova , Cordelia Schmid , Patrick Pérez , Jean Ponce

Modeling and predicting the dynamics of complex multiscale systems remains a significant challenge due to their inherent nonlinearities and sensitivity to initial conditions, as well as limitations of traditional machine learning methods…

机器学习 · 计算机科学 2025-10-23 Elias Al Ghazal , Jad Mounayer , Beatriz Moya , Sebastian Rodriguez , Chady Ghnatios , Francisco Chinesta

Keyword spotting (KWS) refers to the task of identifying a set of predefined words in audio streams. With the advances seen recently with deep neural networks, it has become a popular technology to activate and control small devices, such…

音频与语音处理 · 电气工程与系统科学 2023-09-25 Heitor R. Guimarães , Arthur Pimentel , Anderson Avila , Tiago H. Falk

Recent advances in robust semi-supervised learning (SSL) typically filter out-of-distribution (OOD) information at the sample level. We argue that an overlooked problem of robust SSL is its corrupted information on semantic level,…

计算机视觉与模式识别 · 计算机科学 2023-05-31 Yu Wang , Pengchong Qiao , Chang Liu , Guoli Song , Xiawu Zheng , Jie Chen

Recent applications employ publish/subscribe (Pub/Sub) systems so that publishers can easily receive attentions of customers and subscribers can monitor useful information generated by publishers. Due to the prevalence of smart devices and…

数据库 · 计算机科学 2021-02-11 Shohei Tsuruoka , Daichi Amagata , Shunya Nishio , Takahiro Hara

Domain generalization (DG) aims to learn from multiple known source domains a model that can generalize well to unknown target domains. The existing DG methods usually exploit the fusion of shared multi-source data to train a generalizable…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Junkun Yuan , Xu Ma , Defang Chen , Fei Wu , Lanfen Lin , Kun Kuang

Data summarization aims at utilizing a small-scale summary to represent massive datasets as a whole, which is useful for visualization and information sipped generation. However, most existing studies of hierarchical summarization only work…

数据库 · 计算机科学 2024-07-22 Yuqi Chen , Xin Huang , Bilian Chen