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Unsupervised person re-identification (Re-ID) aims to retrieve person images across cameras without any identity labels. Most clustering-based methods roughly divide image features into clusters and neglect the feature distribution noise…

计算机视觉与模式识别 · 计算机科学 2023-04-26 Pengna Li , Kangyi Wu , Sanping Zhou. Qianxin Huang , Jinjun Wang

We propose a novel methodology for feature screening in clustering massive datasets, in which both the number of features and the number of observations can potentially be very large. Taking advantage of a fusion penalization based convex…

统计方法学 · 统计学 2017-10-05 Trambak Banerjee , Gourab Mukherjee , Peter Radchenko

Extended derivations regarding the cumulant-based formulation of higher-order fluorescence correlation spectroscopy (FCS) are presented. First, we review multivariate cumulants and their relation to photon counting distributions in single…

化学物理 · 物理学 2018-10-16 Farshad Abdollah-Nia

Federated multi-view clustering has the potential to learn a global clustering model from data distributed across multiple devices. In this setting, label information is unknown and data privacy must be preserved, leading to two major…

机器学习 · 计算机科学 2023-09-26 Xinyue Chen , Jie Xu , Yazhou Ren , Xiaorong Pu , Ce Zhu , Xiaofeng Zhu , Zhifeng Hao , Lifang He

Insight in the structure of nanoparticle assemblies up to a single particle level is key to understand the collective properties of these assemblies, which critically depend on the individual particle positions and orientations. However,…

Recent multi-view subspace clustering achieves impressive results utilizing deep networks, where the self-expressive correlation is typically modeled by a fully connected (FC) layer. However, they still suffer from two limitations. i) The…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Yuxiu Lin , Hui Liu , Ren Wang , Qiang Guo , Caiming Zhang

We investigate a fundamental aspect of machine vision: the measurement of features, by revisiting clustering, one of the most classic approaches in machine learning and data analysis. Existing visual feature extractors, including ConvNets,…

计算机视觉与模式识别 · 计算机科学 2024-03-27 Guikun Chen , Xia Li , Yi Yang , Wenguan Wang

Clustering, or grouping, dataset elements based on similarity can be used not only to classify a dataset into a few categories, but also to approximate it by a relatively large number of representative elements. In the latter scenario,…

机器学习 · 计算机科学 2019-09-13 Tim Jaschek , Marko Bucyk , Jaspreet S. Oberoi

The problem of supervised classification of the satellite image is considered to be the task of grouping pixels into a number of homogeneous regions in space intensity. This paper proposes a novel approach that combines a radial basic…

神经与进化计算 · 计算机科学 2013-11-19 Amghar Yasmina Teldja , Fizazi Hadria

Weakly-supervised segmentation with label-efficient sparse annotations has attracted increasing research attention to reduce the cost of laborious pixel-wise labeling process, while the pairwise affinity modeling techniques play an…

计算机视觉与模式识别 · 计算机科学 2023-10-18 Wentong Li , Yuqian Yuan , Song Wang , Wenyu Liu , Dongqi Tang , Jian Liu , Jianke Zhu , Lei Zhang

The estimation of modal parameters from a set of noisy measured data is a highly judgmental task, with user expertise playing a significant role in distinguishing between estimated physical and noise modes of a test-piece. Various methods…

应用统计 · 统计学 2017-09-13 Vahid Yaghoubi , Majid K. Vakilzadeh , Thomas J. S. Abrahamsson

A good clustering algorithm can discover natural groupings in data. These groupings, if used wisely, provide a form of weak supervision for learning representations. In this work, we present Clustering-based Contrastive Learning (CCL), a…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Vivek Sharma , Makarand Tapaswi , M. Saquib Sarfraz , Rainer Stiefelhagen

In cancer research, clustering techniques are widely used for exploratory analyses and dimensionality reduction, playing a critical role in the identification of novel cancer subtypes, often with direct implications for patient management.…

统计方法学 · 统计学 2023-05-11 Lorenzo Masoero , Emma Thomas , Giovanni Parmigiani , Svitlana Tyekucheva , Lorenzo Trippa

We propose a Fourier-based approach for optimization of several clustering algorithms. Mathematically, clusters data can be described by a density function represented by the Dirac mixture distribution. The density function can be smoothed…

机器学习 · 计算机科学 2019-09-24 Soheil Mehrabkhani

Image processing is an important research area in computer vision. Image segmentation plays the vital rule in image processing research. There exist so many methods for image segmentation. Clustering is an unsupervised study. Clustering can…

计算机视觉与模式识别 · 计算机科学 2014-07-31 Dibya Jyoti Bora , Anil Kumar Gupta

Building accurate and robust artificial intelligence systems for medical image assessment requires not only the research and design of advanced deep learning models but also the creation of large and curated sets of annotated training…

Supervised classification and representation learning are two widely used classes of methods to analyze multivariate images. Although complementary, these methods have been scarcely considered jointly in a hierarchical modeling. In this…

计算机视觉与模式识别 · 计算机科学 2020-02-14 Adrien Lagrange , Mathieu Fauvel , Stéphane May , José Bioucas-Dias , Nicolas Dobigeon

Recent advances in multiplex imaging have enabled researchers to locate different types of cells within a tissue sample. This is especially relevant for tumor immunology, as clinical regimes corresponding to different stages of disease or…

Multi-Label Remote Sensing Image Classification (MLRSIC) has received increasing research interest. Taking the cooccurrence relationship of multiple labels as additional information helps to improve the performance of this task. Current…

计算机视觉与模式识别 · 计算机科学 2023-01-03 Yongkun Liu , Kesong Ni , Yuhan Zhang , Lijian Zhou , Kun Zhao

We consider the multi-target detection problem of recovering a set of signals that appear multiple times at unknown locations in a noisy measurement. In the low noise regime, one can estimate the signals by first detecting occurrences, then…

信息论 · 计算机科学 2020-01-08 Tamir Bendory , Nicolas Boumal , William Leeb , Eitan Levin , Amit Singer