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We consider multi-class classification problems for high dimensional data. Following the idea of reduced-rank linear discriminant analysis (LDA), we introduce a new dimension reduction tool with a flavor of supervised principal component…

统计方法学 · 统计学 2017-03-28 Yue Selena Niu , Ning Hao , Bin Dong

Methods for supervised principal component analysis (SPCA) aim to incorporate label information into principal component analysis (PCA), so that the extracted features are more useful for a prediction task of interest. Prior work on SPCA…

机器学习 · 统计学 2022-08-18 Alexander Ritchie , Laura Balzano , Daniel Kessler , Chandra S. Sripada , Clayton Scott

Auto-Encoder based deep subspace clustering (DSC) is widely used in computer vision, motion segmentation and image processing. However, it suffers from the following three issues in the self-expressive matrix learning process: the first one…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Guangyi Zhao , Simin Kou , Xuesong Yin

Supervised-contrastive loss (SCL) is an alternative to cross-entropy (CE) for classification tasks that makes use of similarities in the embedding space to allow for richer representations. In this work, we propose methods to engineer the…

机器学习 · 计算机科学 2023-10-03 Jaidev Gill , Vala Vakilian , Christos Thrampoulidis

Autoencoders are unsupervised deep learning models used for learning representations. In literature, autoencoders have shown to perform well on a variety of tasks spread across multiple domains, thereby establishing widespread…

计算机视觉与模式识别 · 计算机科学 2018-10-16 Maneet Singh , Shruti Nagpal , Mayank Vatsa , Richa Singh , Afzel Noore

Contrastive self-supervised learning (CSL) with a prototypical regularization has been introduced in learning meaningful representations for downstream tasks that require strong semantic information. However, to optimize CSL with a loss…

计算机视觉与模式识别 · 计算机科学 2022-10-20 Shentong Mo , Zhun Sun , Chao Li

Large-scale network embedding is to learn a latent representation for each node in an unsupervised manner, which captures inherent properties and structural information of the underlying graph. In this field, many popular approaches are…

机器学习 · 计算机科学 2020-12-11 Shengzhong Zhang , Zengfeng Huang , Haicang Zhou , Ziang Zhou

Tensor robust principal component analysis (TRPCA) has received a substantial amount of attention in various fields. Most existing methods, normally relying on tensor nuclear norm minimization, need to pay an expensive computational cost…

数值分析 · 计算机科学 2017-12-29 Jonathan Q. Jiang , Michael K. Ng

Compressed sensing (CS) is a signal processing framework for efficiently reconstructing a signal from a small number of measurements, obtained by linear projections of the signal. In this paper we present an end-to-end deep learning…

图像与视频处理 · 电气工程与系统科学 2019-06-26 Yochai Zur , Amir Adler

Auto-Encoder (AE)-based deep subspace clustering (DSC) methods have achieved impressive performance due to the powerful representation extracted using deep neural networks while prioritizing categorical separability. However,…

计算机视觉与模式识别 · 计算机科学 2021-05-17 Juncheng Lv , Zhao Kang , Xiao Lu , Zenglin Xu

Context-aware compression techniques have gained increasing attention as model sizes continue to grow, introducing computational bottlenecks that hinder efficient deployment. A structured encoding approach was proposed to selectively…

STEM XEDS spectrum images can be drastically denoised by application of the principal component analysis (PCA). This paper looks inside the PCA workflow step by step on an example of a complex semiconductor structure consisting of a number…

图像与视频处理 · 电气工程与系统科学 2019-10-16 Pavel Potapov , Axel Lubk

Self-supervised learning (SSL) has emerged as a powerful technique for learning visual representations. While recent SSL approaches achieve strong results in global image understanding, they are limited in capturing the structured…

计算机视觉与模式识别 · 计算机科学 2025-08-28 Oussama Hadjerci , Antoine Letienne , Mohamed Abbas Hedjazi , Adel Hafiane

Sparse principal component analysis (sPCA) enhances the interpretability of principal components (PCs) by imposing sparsity constraints on loading vectors (LVs). However, when used as a precursor to independent component analysis (ICA) for…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Muhammad Usman Khalid

High-dimensional observations and unknown dynamics are major challenges when applying optimal control to many real-world decision making tasks. The Learning Controllable Embedding (LCE) framework addresses these challenges by embedding the…

机器学习 · 计算机科学 2020-03-03 Rui Shu , Tung Nguyen , Yinlam Chow , Tuan Pham , Khoat Than , Mohammad Ghavamzadeh , Stefano Ermon , Hung H. Bui

To encode point clouds containing both geometry and attributes, most learning-based compression schemes treat geometry and attribute coding separately, employing distinct encoders and decoders. This not only increases computational…

计算机视觉与模式识别 · 计算机科学 2025-05-23 Kai Hsiang Hsieh , Monyneath Yim , Jui Chiu Chiang

We propose reCSE, a self supervised contrastive learning sentence representation framework based on feature reshaping. This framework is different from the current advanced models that use discrete data augmentation methods, but instead…

计算与语言 · 计算机科学 2024-08-27 Fufangchen Zhao , Jian Gao , Danfeng Yan

In this paper, we propose a novel, effective and simpler end-to-end image clustering auto-encoder algorithm: ICAE. The algorithm uses PEDCC (Predefined Evenly-Distributed Class Centroids) as the clustering centers, which ensures the…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Qiuyu Zhu , Zhengyong Wang

In this paper, we address two challenging problems in unsupervised subspace learning: 1) how to automatically identify the feature dimension of the learned subspace (i.e., automatic subspace learning), and 2) how to learn the underlying…

计算机视觉与模式识别 · 计算机科学 2017-05-17 Xi Peng , Jiwen Lu , Zhang Yi , Rui Yan

Learning discriminative representations is a central goal of supervised deep learning. While cross-entropy (CE) remains the dominant objective for classification, it does not explicitly enforce desirable geometric properties in the…

机器学习 · 计算机科学 2026-04-13 Matheus Vinícius Todescato , Joel Luís Carbonera