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This paper focuses on unpaired multi-view clustering (UMC), a challenging problem where paired observed samples are unavailable across multiple views. The goal is to perform effective joint clustering using the unpaired observed samples in…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Like Xin , Wanqi Yang , Lei Wang , Ming Yang

Among the most famous algorithms for solving classification problems are support vector machines (SVMs), which find a separating hyperplane for a set of labeled data points. In some applications, however, labels are only available for a…

最优化与控制 · 数学 2023-10-17 Jan Pablo Burgard , Maria Eduarda Pinheiro , Martin Schmidt

The minimum sum-of-squares clustering (MSSC), or k-means type clustering, is traditionally considered an unsupervised learning task. In recent years, the use of background knowledge to improve the cluster quality and promote…

最优化与控制 · 数学 2022-07-26 Veronica Piccialli , Anna Russo Russo , Antonio M. Sudoso

Creating low dimensional representations of a high dimensional data set is an important component in many machine learning applications. How to cluster data using their low dimensional embedded space is still a challenging problem in…

机器学习 · 计算机科学 2023-03-27 Zahra Moslehi , Abdolreza Mirzaei , Mehran Safayani

Self-Supervised Learning (SSL) methods harness the concept of semantic invariance by utilizing data augmentation strategies to produce similar representations for different deformations of the same input. Essentially, the model captures the…

计算机视觉与模式识别 · 计算机科学 2024-03-05 Huijie Guo , Ying Ba , Jie Hu , Lingyu Si , Wenwen Qiang , Lei Shi

In large-scale few-shot learning for classification problems, often there are a large number of classes and few high-dimensional observations per class. Previous model-based methods, such as Fisher's linear discriminant analysis (LDA),…

统计方法学 · 统计学 2025-04-16 Andrew Simpson , Semhar Michael

Representation based classification methods have become a hot research topic during the past few years, and the two most prominent approaches are sparse representation based classification (SRC) and collaborative representation based…

计算机视觉与模式识别 · 计算机科学 2020-01-22 Zi-Qi Li , Jun Sun , Xiao-Jun Wu , He-Feng Yin

Image clustering, which involves grouping images into different clusters without labels, is a key task in unsupervised learning. Although previous deep clustering methods have achieved remarkable results, they only explore the intrinsic…

计算机视觉与模式识别 · 计算机科学 2024-09-23 Haixin Zhang , Yongjun Li , Dong Huang

Cluster discrimination is an effective pretext task for unsupervised representation learning, which often consists of two phases: clustering and discrimination. Clustering is to assign each instance a pseudo label that will be used to learn…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Qi Qian , Yuanhong Xu , Juhua Hu , Hao Li , Rong Jin

With the explosive growth of information technology, multi-view graph data have become increasingly prevalent and valuable. Most existing multi-view clustering techniques either focus on the scenario of multiple graphs or multi-view…

机器学习 · 计算机科学 2021-10-25 Erlin Pan , Zhao Kang

Multi-view clustering (MVC) can explore common semantics from unsupervised views generated by different sources, and thus has been extensively used in applications of practical computer vision. Due to the spatio-temporal asynchronism,…

人工智能 · 计算机科学 2023-10-31 Jiatai Wang , Zhiwei Xu , Xuewen Yang , Xin Wang

The effectiveness of contrastive learning in sequential recommendation hinges on the construction of contrastive views, which ideally should be both semantically consistent and diverse. However, most existing CL-based methods rely on…

信息检索 · 计算机科学 2026-05-13 Wei Wang

Exemplar learning is a powerful paradigm for discovering visual similarities in an unsupervised manner. In this context, however, the recent breakthrough in deep learning could not yet unfold its full potential. With only a single positive…

计算机视觉与模式识别 · 计算机科学 2016-09-01 Miguel A. Bautista , Artsiom Sanakoyeu , Ekaterina Sutter , Björn Ommer

This paper presents a novel clustering concept that is based on jointly learned nonlinear transforms (NTs) with priors on the information loss and the discrimination. We introduce a clustering principle that is based on evaluation of a…

机器学习 · 计算机科学 2019-01-31 Dimche Kostadinov , Behrooz Razeghi , Taras Holotyak , Slava Voloshynovskiy

We introduce a general semiparametric clusterwise elliptical distribution to assess how latent cluster structure shapes continuous outcomes. Using a subjectwise representation, we first estimate cluster-specific mean vectors and a…

统计方法学 · 统计学 2026-04-10 Jen-Chieh Teng , Sheng-Hsin Fan , Chin-Tsang Chiang , Ming-Yueh Huang , Alvin Lim

We propose a novel sampling framework for inference in probabilistic models: an active learning approach that converges more quickly (in wall-clock time) than Markov chain Monte Carlo (MCMC) benchmarks. The central challenge in…

机器学习 · 统计学 2014-11-04 Tom Gunter , Michael A. Osborne , Roman Garnett , Philipp Hennig , Stephen J. Roberts

This paper develops several average-case reduction techniques to show new hardness results for three central high-dimensional statistics problems, implying a statistical-computational gap induced by robustness, a detection-recovery gap and…

计算复杂性 · 计算机科学 2020-05-20 Matthew Brennan , Guy Bresler

Multi-view clustering aims at integrating complementary information from multiple heterogeneous views to improve clustering results. Existing multi-view clustering solutions can only output a single clustering of the data. Due to their…

机器学习 · 计算机科学 2019-11-27 Shaowei Wei , Jun Wang , Guoxian Yu , Carlotta , Xiangliang Zhang

Contrastive self supervised learning(CSSL) usually makes use of the multi-view assumption which states that all relevant information must be shared between all views. The main objective of CSSL is to maximize the mutual information(MI)…

计算机视觉与模式识别 · 计算机科学 2026-04-03 Yash Kumar Sharma , Vineet Padmanabhan

In this work, we consider multitask learning problems where clusters of nodes are interested in estimating their own parameter vector. Cooperation among clusters is beneficial when the optimal models of adjacent clusters have a good number…

系统与控制 · 计算机科学 2016-11-03 Roula Nassif , Cédric Richard , André Ferrari , Ali H. Sayed