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Higher-order data with high dimensionality is of immense importance in many areas of machine learning, computer vision, and video analytics. Multidimensional arrays (commonly referred to as tensors) are used for arranging higher-order data…

机器学习 · 计算机科学 2022-05-20 Cagri Ozdemir , Randy C. Hoover , Kyle Caudle , Karen Braman

Unsupervised Domain Adaptation (UDA) aims to align the labeled source distribution with the unlabeled target distribution to obtain domain invariant predictive models. However, the application of well-known UDA approaches does not…

计算机视觉与模式识别 · 计算机科学 2021-11-11 Ankit Singh

In this paper, we propose an efficient semidefinite programming (SDP) approach to worst-case linear discriminant analysis (WLDA). Compared with the traditional LDA, WLDA considers the dimensionality reduction problem from the worst-case…

机器学习 · 计算机科学 2023-07-19 Hui Li , Chunhua Shen , Anton van den Hengel , Qinfeng Shi

Deep convolution neural networks (CNN) have demonstrated advanced performance on single-label image classification, and various progress also have been made to apply CNN methods on multi-label image classification, which requires to…

计算机视觉与模式识别 · 计算机科学 2017-03-14 Junjie Zhang , Qi Wu , Chunhua Shen , Jian Zhang , Jianfeng Lu

Discriminating patients with Alzheimer's disease (AD) from healthy subjects is a crucial task in the research of Alzheimer's disease. The task can be potentially achieved by linear discriminant analysis (LDA), which is one of the most…

统计方法学 · 统计学 2020-05-05 Yingjie Li , Liangliang Zhang , Tapabrata Maiti

We show that for unconstrained Deep Linear Discriminant Analysis (LDA) classifiers, maximum-likelihood training admits pathological solutions in which class means drift together, covariances collapse, and the learned representation becomes…

机器学习 · 统计学 2026-01-06 Maxat Tezekbayev , Rustem Takhanov , Arman Bolatov , Zhenisbek Assylbekov

We introduce a new method of performing high dimensional discriminant analysis, which we call multiDA. We achieve this by constructing a hybrid model that seamlessly integrates a multiclass diagonal discriminant analysis model and feature…

机器学习 · 统计学 2018-07-05 Sarah Elizabeth Romanes , John Thomas Ormerod , Jean YH Yang

Despite the success of deep neural networks in medical image classification, the problem remains challenging as data annotation is time-consuming, and the class distribution is imbalanced due to the relative scarcity of diseases. To address…

计算机视觉与模式识别 · 计算机科学 2023-08-01 Zhongzheng Huang , Jiawei Wu , Tao Wang , Zuoyong Li , Anastasia Ioannou

This paper introduces a novel heterogenous domain adaptation (HDA) method for hyperspectral image classification with a limited amount of labeled samples in both domains. The method is achieved in the way of cross-domain collaborative…

图像与视频处理 · 电气工程与系统科学 2019-06-26 Yao Qin , Lorenzo Bruzzone , Biao Li , Yuanxin Ye

Quadratic discriminant analysis (QDA) is a widely used classification technique. Based on a training dataset, each class in the data is characterized by an estimate of its center and shape, which can then be used to assign unseen…

统计方法学 · 统计学 2021-01-13 Iwein Vranckx , Jakob Raymaekers , Bart De Ketelaere , Peter J. Rousseeuw , Mia Hubert

Person re-identification is to seek a correct match for a person of interest across views among a large number of imposters. It typically involves two procedures of non-linear feature extractions against dramatic appearance changes, and…

计算机视觉与模式识别 · 计算机科学 2016-06-07 Lin Wu , Chunhua Shen , Anton van den Hengel

Multi-label image classification allows predicting a set of labels from a given image. Unlike multiclass classification, where only one label per image is assigned, such a setup is applicable for a broader range of applications. In this…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Kirill Prokofiev , Vladislav Sovrasov

This tutorial explains Linear Discriminant Analysis (LDA) and Quadratic Discriminant Analysis (QDA) as two fundamental classification methods in statistical and probabilistic learning. We start with the optimization of decision boundary on…

机器学习 · 统计学 2019-06-07 Benyamin Ghojogh , Mark Crowley

In the presence of large sets of labeled data, Deep Learning (DL) has accomplished extraordinary triumphs in the avenue of computer vision, particularly in object classification and recognition tasks. However, DL cannot always perform well…

计算机视觉与模式识别 · 计算机科学 2019-01-03 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

In the past few decades, researchers have proposed many discriminant analysis (DA) algorithms for the study of high-dimensional data in a variety of problems. Most DA algorithms for feature extraction are based on transformations that…

计算机视觉与模式识别 · 计算机科学 2012-06-12 Ali Shadvar

Dimensionality reduction is a main step in the learning process which plays an essential role in many applications. The most popular methods in this field like SVD, PCA, and LDA, only can be applied to data with vector format. This means…

机器学习 · 计算机科学 2019-03-01 Soheil Ahmadi , Mansoor Rezghi

Adversarial discriminative domain adaptation (ADDA) is an efficient framework for unsupervised domain adaptation in image classification, where the source and target domains are assumed to have the same classes, but no labels are available…

计算机视觉与模式识别 · 计算机科学 2019-11-12 Aaron Chadha , Yiannis Andreopoulos

Multi-label recognition is a fundamental, and yet is a challenging task in computer vision. Recently, deep learning models have achieved great progress towards learning discriminative features from input images. However, conventional…

计算机视觉与模式识别 · 计算机科学 2021-07-26 Mohammed Hassanin , Ibrahim Radwan , Salman Khan , Murat Tahtali

Contrastive learning is a well-established paradigm in representation learning. The standard framework of contrastive learning minimizes the distance between "similar" instances and maximizes the distance between dissimilar ones in the…

机器学习 · 计算机科学 2025-02-06 Naghmeh Ghanooni , Barbod Pajoum , Harshit Rawal , Sophie Fellenz , Vo Nguyen Le Duy , Marius Kloft

Cross-modal alignment is an effective approach to improving visual classification. Existing studies typically enforce a one-step mapping that uses deep neural networks to project the visual features to mimic the distribution of textual…

计算机视觉与模式识别 · 计算机科学 2025-05-27 Zixuan Li , Lei Meng , Guoqing Chao , Wei Wu , Xiaoshuo Yan , Yimeng Yang , Zhuang Qi , Xiangxu Meng