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Clustering is a central tool in biomedical research for discovering heterogeneous patient subpopulations, where group boundaries are often diffuse rather than sharply separated. Traditional methods produce hard partitions, whereas soft…

统计方法学 · 统计学 2026-01-07 Qiuyi Wu , Zihan Zhu , Anru R. Zhang

Federated Learning (FL) faces major challenges in real-world deployments due to statistical heterogeneity across clients and system heterogeneity arising from resource-constrained devices. While clustering-based approaches mitigate…

机器学习 · 计算机科学 2026-03-03 Om Govind Jha , Harsh Shukla , Haroon R. Lone

Active learning for imbalanced classification tasks is challenging as the minority classes naturally occur rarely. Gathering a large pool of unlabelled data is thus essential to capture minority instances. Standard pool-based active…

机器学习 · 计算机科学 2024-10-17 Pietro Lesci , Andreas Vlachos

Clustering problems are considered amongst the prominent challenges in statistics and computational science. Clustering of nodes in wireless sensor networks which is used to prolong the life-time of networks is one of the difficult tasks of…

人工智能 · 计算机科学 2015-06-02 Reza Azizi , Hasan Sedghi , Hamid Shoja , Alireza Sepas-Moghaddam

Existing graph generative models often face a critical trade-off between sample quality and generation speed. We introduce Autoregressive Noisy Filtration Modeling (ANFM), a flexible autoregressive framework that addresses both challenges.…

机器学习 · 计算机科学 2026-02-17 Markus Krimmel , Jenna Wiens , Karsten Borgwardt , Dexiong Chen

Temporal graph clustering is a complex task that involves discovering meaningful structures in dynamic graphs where relationships and entities change over time. Existing methods typically require centralized data collection, which poses…

机器学习 · 计算机科学 2025-03-04 Zihao Zhou , Yang Liu , Xianghong Xu , Qian Li

Contrastive learning has demonstrated strong performance in attributed hypergraph clustering. Typically, existing methods based on contrastive learning first learn node embeddings and then apply clustering algorithms, such as k-means, to…

机器学习 · 计算机科学 2026-03-11 Li Ni , Shuaikang Zeng , Lin Mu , Longlong Lin

Multi-view data clustering refers to categorizing a data set by making good use of related information from multiple representations of the data. It becomes important nowadays because more and more data can be collected in a variety of…

人工智能 · 计算机科学 2016-09-16 Yangtao Wang , Lihui Chen

Recently, deep matrix factorization has been established as a powerful model for unsupervised tasks, achieving promising results, especially for multi-view clustering. However, existing methods often lack effective feature selection…

机器学习 · 统计学 2024-12-04 Yasser Khalafaoui , Basarab Matei , Martino Lovisetto , Nistor Grozavu

The non-stationary nature of data streams strongly challenges traditional machine learning techniques. Although some solutions have been proposed to extend traditional machine learning techniques for handling data streams, these approaches…

机器学习 · 计算机科学 2021-06-23 Xuyang Yan , Abdollah Homaifar , Mrinmoy Sarkar , Abenezer Girma , Edward Tunstel

Anchor-based multi-view graph clustering (AMVGC) has received abundant attention owing to its high efficiency and the capability to capture complementary structural information across multiple views. Intuitively, a high-quality anchor graph…

机器学习 · 计算机科学 2023-09-04 Yi Wen , Suyuan Liu , Xinhang Wan , Siwei Wang , Ke Liang , Xinwang Liu , Xihong Yang , Pei Zhang

The clustering method based on graph models has garnered increased attention for its widespread applicability across various knowledge domains. Its adaptability to integrate seamlessly with other relevant applications endows the graph…

机器学习 · 计算机科学 2025-04-02 Xinrun Xu , Manying Lv , Zhanbiao Lian , Yurong Wu , Jin Yan , Shan Jiang , Zhiming Ding

In recent years, the growing need to leverage sensitive data across institutions has led to increased attention on federated learning (FL), a decentralized machine learning paradigm that enables model training without sharing raw data.…

Cluster assignment of large and complex images is a crucial but challenging task in pattern recognition and computer vision. In this study, we explore the possibility of employing fuzzy clustering in a deep neural network framework. Thus,…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Dayu Tan , Zheng Huang , Xin Peng , Weimin Zhong , Vladimir Mahalec

Federated Learning (FL) is a setting where multiple parties with distributed data collaborate in training a joint Machine Learning (ML) model while keeping all data local at the parties. Federated clustering is an area of research within FL…

机器学习 · 计算机科学 2022-01-20 Morris Stallmann , Anna Wilbik

This paper provides a theoretical support for clustering aspect of the nonnegative matrix factorization (NMF). By utilizing the Karush-Kuhn-Tucker optimality conditions, we show that NMF objective is equivalent to graph clustering…

机器学习 · 计算机科学 2011-12-20 Andri Mirzal

Feature fusion plays a crucial role in unconstrained face recognition where inputs (probes) comprise of a set of $N$ low quality images whose individual qualities vary. Advances in attention and recurrent modules have led to feature fusion…

计算机视觉与模式识别 · 计算机科学 2023-02-17 Minchul Kim , Feng Liu , Anil Jain , Xiaoming Liu

Clustering is an effective technique in data mining to group a set of objects in terms of some attributes. Among various clustering approaches, the family of K-Means algorithms gains popularity due to simplicity and efficiency. However,…

机器学习 · 计算机科学 2019-09-06 Jinglin Xu , Junwei Han , Mingliang Xu , Feiping Nie , Xuelong Li

Leukemia diagnosis and monitoring rely increasingly on high-throughput image data, yet conventional clustering methods lack the flexibility to accommodate evolving cellular patterns and quantify uncertainty in real time. We introduce…

机器学习 · 计算机科学 2025-12-01 Marco Aruta , Ciro Listone , Giuseppe Murano , Aniello Murano

The label noise transition matrix, characterizing the probabilities of a training instance being wrongly annotated, is crucial to designing popular solutions to learning with noisy labels. Existing works heavily rely on finding "anchor…

机器学习 · 计算机科学 2021-07-15 Zhaowei Zhu , Yiwen Song , Yang Liu