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In this paper, we investigate the unsupervised deep representation learning issue and technically propose a novel framework called Deep Self-representative Concept Factorization Network (DSCF-Net), for clustering deep features. To improve…

Machine Learning · Computer Science 2020-01-01 Yan Zhang , Zhao Zhang , Zheng Zhang , Mingbo Zhao , Li Zhang , Zhengjun Zha , Meng Wang

A popular testbed for deep learning has been multimodal recognition of human activity or gesture involving diverse inputs such as video, audio, skeletal pose and depth images. Deep learning architectures have excelled on such problems due…

Neural and Evolutionary Computing · Computer Science 2017-07-05 Dhanesh Ramachandram , Michal Lisicki , Timothy J. Shields , Mohamed R. Amer , Graham W. Taylor

In today's data-driven digital era, the amount as well as complexity, such as multi-view, non-Euclidean, and multi-relational, of the collected data are growing exponentially or even faster. Clustering, which unsupervisely extracts valid…

Machine Learning · Computer Science 2025-01-10 Zhao Kang , Xuanting Xie , Bingheng Li , Erlin Pan

Identifying anomalies in multi-dimensional datasets is an important task in many real-world applications. A special case arises when anomalies are occluded in a small set of attributes, typically referred to as a subspace, and not…

Machine Learning · Computer Science 2021-01-14 Marcelo Bacher , Irad Ben-Gal , Erez Shmueli

Detection of interesting (e.g., coherent or anomalous) clusters has been studied extensively on plain or univariate networks, with various applications. Recently, algorithms have been extended to networks with multiple attributes for each…

Machine Learning · Computer Science 2018-09-21 Feng Chen , Baojian Zhou , Adil Alim , Liang Zhao

Graph Representation Learning (GRL) is an influential methodology, enabling a more profound understanding of graph-structured data and aiding graph clustering, a critical task across various domains. The recent incursion of attention…

Machine Learning · Computer Science 2023-08-15 Shuo Han , Jiacheng Liu , Jiayun Wu , Yinan Chen , Li Tao

Contrastive graph node clustering via learnable data augmentation is a hot research spot in the field of unsupervised graph learning. The existing methods learn the sampling distribution of a pre-defined augmentation to generate data-driven…

Machine Learning · Computer Science 2023-10-23 Xihong Yang , Cheng Tan , Yue Liu , Ke Liang , Siwei Wang , Sihang Zhou , Jun Xia , Stan Z. Li , Xinwang Liu , En Zhu

This paper strives to learn fine-grained fashion similarity. In this similarity paradigm, one should pay more attention to the similarity in terms of a specific design/attribute among fashion items, which has potential values in many…

Computer Vision and Pattern Recognition · Computer Science 2020-02-10 Zhe Ma , Jianfeng Dong , Yao Zhang , Zhongzi Long , Yuan He , Hui Xue , Shouling Ji

We present a framework for clustering with cluster-specific feature selection. The framework, CRAFT, is derived from asymptotic log posterior formulations of nonparametric MAP-based clustering models. CRAFT handles assorted data, i.e., both…

Machine Learning · Computer Science 2015-06-26 Vikas K. Garg , Cynthia Rudin , Tommi Jaakkola

In skeleton-based human activity understanding, existing methods often adopt the contrastive learning paradigm to construct a discriminative feature space. However, many of these approaches fail to exploit the structural inter-class…

Computer Vision and Pattern Recognition · Computer Science 2026-02-25 Hongda Liu , Yunfan Liu , Min Ren , Lin Sui , Yunlong Wang , Zhenan Sun

Deep convolutional neural networks, assisted by architectural design strategies, make extensive use of data augmentation techniques and layers with a high number of feature maps to embed object transformations. That is highly inefficient…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Vittorio Mazzia , Francesco Salvetti , Marcello Chiaberge

Recently, graph anomaly detection on attributed networks has attracted growing attention in data mining and machine learning communities. Apart from attribute anomalies, graph anomaly detection also aims at suspicious topological-abnormal…

Machine Learning · Computer Science 2023-10-03 Jingcan Duan , Bin Xiao , Siwei Wang , Haifang Zhou , Xinwang Liu

We generalize finite-sample bounds for convex clustering to the setting where affinity weights appearing in the objective correspond to a general connected graph. These bounds and their analysis lead to a better understanding of clustering…

Machine Learning · Statistics 2026-05-26 Sam Rosen , Jason Xu

Objects at different spatial positions in an image exhibit different scales. Adaptive receptive fields are expected to capture suitable ranges of context for accurate pixel level semantic prediction. Recently, atrous convolution with…

Computer Vision and Pattern Recognition · Computer Science 2020-10-12 Xin Jin , Cuiling Lan , Wenjun Zeng , Zhizheng Zhang , Zhibo Chen

Spectral clustering is a popular tool in network data analysis, with applications in a variety of scientific application areas. However, many studies have shown that classical spectral clustering does not perform well on certain network…

Methodology · Statistics 2026-03-31 Sinyoung Park , Matthew Nunes , Sandipan Roy

We derive an adaptive hierarchical method of estimating high dimensional probability density functions. We call this method of density estimation the "adaptive cluster expansion" or ACE for short. We present an application of this approach,…

Neural and Evolutionary Computing · Computer Science 2010-12-17 Stephen Luttrell

In this work, we focus on the efficiency and scalability of pairwise constraint-based active clustering, crucial for processing large-scale data in applications such as data mining, knowledge annotation, and AI model pre-training. Our goals…

Machine Learning · Computer Science 2025-09-11 Wen-Bo Xie , Xun Fu , Bin Chen , Yan-Li Lee , Tao Deng , Tian Zou , Xin Wang , Zhen Liu , Jaideep Srivastavad

In recent years, models based on Graph Convolutional Networks (GCN) have made significant strides in the field of graph data analysis. However, challenges such as over-smoothing and over-compression remain when handling large-scale and…

Machine Learning · Computer Science 2025-07-23 Binxiong Li , Xu Xiang , Xue Li , Binyu Zhao , Heyang Gao , Qinyu Zhao

Domain adaptive person re-identification (re-ID) is a challenging task, especially when person identities in target domains are unknown. Existing methods attempt to address this challenge by transferring image styles or aligning feature…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Yunpeng Zhai , Shijian Lu , Qixiang Ye , Xuebo Shan , Jie Chen , Rongrong Ji , Yonghong Tian

Community detection plays a pivotal role in uncovering closely connected subgraphs, aiding various real-world applications such as recommendation systems and anomaly detection. With the surge of rich information available for entities in…

Social and Information Networks · Computer Science 2024-11-05 Anran Zhang , Xingfen Wang , Yuhan Zhao