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Unknown examples that are unseen during training often appear in real-world machine learning tasks, and an intelligent self-learning system should be able to distinguish between known and unknown examples. Accordingly, open set recognition…

计算机视觉与模式识别 · 计算机科学 2022-07-18 Jaeyeon Jang , Chang Ouk Kim

We study the problem of multiple kernel learning from noisy labels. This is in contrast to most of the previous studies on multiple kernel learning that mainly focus on developing efficient algorithms and assume perfectly labeled training…

机器学习 · 计算机科学 2012-06-22 Tianbao Yang , Mehrdad Mahdavi , Rong Jin , Lijun Zhang , Yang Zhou

Latest least squares regression (LSR) methods mainly try to learn slack regression targets to replace strict zero-one labels. However, the difference of intra-class targets can also be highlighted when enlarging the distance between…

计算机视觉与模式识别 · 计算机科学 2019-10-09 Zhe Chen , Xiao-Jun Wu , Josef Kittler

Real-world image super-resolution (Real-SR) is a challenging problem due to the complex degradation patterns in low-resolution images. Unlike approaches that assume a broadly encompassing degradation space, we focus specifically on…

计算机视觉与模式识别 · 计算机科学 2025-06-09 Shuchen Lin , Mingtao Feng , Weisheng Dong , Fangfang Wu , Jianqiao Luo , Yaonan Wang , Guangming Shi

Due to the growing ubiquity of unlabeled data, learning with unlabeled data is attracting increasing attention in machine learning. In this paper, we propose a novel semi-supervised kernel learning method which can seamlessly combine…

机器学习 · 计算机科学 2012-03-19 Qi Mao , Ivor W. Tsang

Asymmetric data naturally exist in real life, such as directed graphs. Different from the common kernel methods requiring Mercer kernels, this paper tackles the asymmetric kernel-based learning problem. We describe a nonlinear extension of…

机器学习 · 计算机科学 2023-06-13 Qinghua Tao , Francesco Tonin , Panagiotis Patrinos , Johan A. K. Suykens

In this paper we propose a novel metric learning framework called Nullspace Kernel Maximum Margin Metric Learning (NK3ML) which efficiently addresses the small sample size (SSS) problem inherent in person re-identification and offers a…

计算机视觉与模式识别 · 计算机科学 2018-07-31 T M Feroz Ali , Subhasis Chaudhuri

Real-world classification domains, such as medicine, health and safety, and finance, often exhibit imbalanced class priors and have asynchronous misclassification costs. In such cases, the classification model must achieve a high recall…

机器学习 · 计算机科学 2021-05-11 Michał Koziarski , Colin Bellinger , Michał Woźniak

Visual perception entails solving a wide set of tasks, e.g., object detection, depth estimation, etc. The predictions made for multiple tasks from the same image are not independent, and therefore, are expected to be consistent. We propose…

计算机视觉与模式识别 · 计算机科学 2020-06-09 Amir Zamir , Alexander Sax , Teresa Yeo , Oğuzhan Kar , Nikhil Cheerla , Rohan Suri , Zhangjie Cao , Jitendra Malik , Leonidas Guibas

We propose a strategy for land use classification which exploits Multiple Kernel Learning (MKL) to automatically determine a suitable combination of a set of features without requiring any heuristic knowledge about the classification task.…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Claudio Cusano , Paolo Napoletano , Raimondo Schettini

We consider a problem in Multi-Task Learning (MTL) where multiple linear models are jointly trained on a collection of datasets ("tasks"). A key novelty of our framework is that it allows the sparsity pattern of regression coefficients and…

统计方法学 · 统计学 2025-12-08 Kayhan Behdin , Gabriel Loewinger , Kenneth T. Kishida , Giovanni Parmigiani , Rahul Mazumder

Identifying low-dimensional latent structures within high-dimensional data has long been a central topic in the machine learning community, driven by the need for data compression, storage, transmission, and deeper data understanding.…

机器学习 · 统计学 2025-03-28 Ye Tian , Sanyou Wu , Long Feng

Kernel ridge regression, KRR, is a generalization of linear ridge regression that is non-linear in the data, but linear in the model parameters. Here, we introduce an equivalent formulation of the objective function of KRR, which opens up…

机器学习 · 统计学 2025-03-10 Oskar Allerbo

Machine unlearning aims to enable models to forget specific data instances when receiving deletion requests. Current research centres on efficient unlearning to erase the influence of data from the model and neglects the subsequent impacts…

机器学习 · 计算机科学 2024-04-23 Huiqiang Chen , Tianqing Zhu , Xin Yu , Wanlei Zhou

Operator learning is reshaping scientific computing by amortizing inference across infinite families of problems. While neural operators (NOs) are increasingly well understood for regression, far less is known for classification and its…

Kernel-based approaches for sequence classification have been successfully applied to a variety of domains, including the text categorization, image classification, speech analysis, biological sequence analysis, time series and music…

机器学习 · 计算机科学 2014-10-01 Pavel P. Kuksa

Sparse subspace clustering (SSC), as one of the most successful subspace clustering methods, has achieved notable clustering accuracy in computer vision tasks. However, SSC applies only to vector data in Euclidean space. As such, there is…

计算机视觉与模式识别 · 计算机科学 2016-03-08 Ming Yin , Yi Guo , Junbin Gao , Zhaoshui He , Shengli Xie

Kernel methods play a critical role in many machine learning algorithms. They are useful in manifold learning, classification, clustering and other data analysis tasks. Setting the kernel's scale parameter, also referred to as the kernel's…

机器学习 · 计算机科学 2019-06-06 Ofir Lindenbaum , Moshe Salhov , Arie Yeredor , Amir Averbuch

We investigate online kernel algorithms which simultaneously process multiple classification tasks while a fixed constraint is imposed on the size of their active sets. We focus in particular on the design of algorithms that can efficiently…

机器学习 · 计算机科学 2012-10-02 Giovanni Cavallanti , Nicolò Cesa-Bianchi

Kernel methods are one of the cornerstones of learning-based control, modern system identification, surrogate modelling, and related fields. A key advantage of this class of learning and function approximation methods is the availability of…

数值分析 · 数学 2026-05-20 Tizian Wenzel , Abdullah Tokmak , Christian Fiedler