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High-dimensional clustering analysis is a challenging problem in statistics and machine learning, with broad applications such as the analysis of microarray data and RNA-seq data. In this paper, we propose a new clustering procedure called…

统计方法学 · 统计学 2022-10-31 Tianqi Liu , Yu Lu , Biqing Zhu , Hongyu Zhao

Subspace clustering (SC) is a popular method for dimensionality reduction of high-dimensional data, where it generalizes Principal Component Analysis (PCA). Recently, several methods have been proposed to enhance the robustness of PCA and…

数据结构与算法 · 计算机科学 2015-06-09 Sanghyuk Chun , Yung-Kyun Noh , Jinwoo Shin

Deep subspace clustering models are vital for applications such as snowmelt detection, sea ice tracking, crop health monitoring, infectious disease modeling, network load prediction, and land-use planning, where multivariate spatiotemporal…

机器学习 · 计算机科学 2025-10-22 Francis Ndikum Nji , Vandana Janeja , Jianwu Wang

Machine learning interatomic potentials are revolutionizing large-scale, accurate atomistic modelling in material science and chemistry. Many potentials use atomic cluster expansion or equivariant message passing frameworks. Such frameworks…

计算物理 · 物理学 2024-07-31 Bingqing Cheng

We give an efficient algorithm for robustly clustering of a mixture of two arbitrary Gaussians, a central open problem in the theory of computationally efficient robust estimation, assuming only that the the means of the component Gaussians…

数据结构与算法 · 计算机科学 2020-06-02 He Jia , Santosh Vempala

Real-world datasets inevitably contain biases that arise from different sources or conditions during data collection. Consequently, such inconsistency itself acts as a confounding factor that disturbs the cluster analysis. Existing methods…

机器学习 · 计算机科学 2023-11-03 Yinghua Yao , Yuangang Pan , Jing Li , Ivor W. Tsang , Xin Yao

This work presents a novel method for fitting superquadrics to point clouds under the contamination of noise and outliers, which has many applications for shape modeling across diverse fields. Unlike prior approaches that either exclusively…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Mingyang Zhao , Sipu Ruan , Xiaohong Jia

Based on further studying the low-rank subspace clustering (LRSC) and L2-graph subspace clustering algorithms, we propose a F-graph subspace clustering algorithm with a symmetric constraint (FSSC), which constructs a new objective function…

计算机视觉与模式识别 · 计算机科学 2019-12-18 Kai Xu , Xiao-Jun Wu , Wen-Bo Hu

We present an unsupervised data processing workflow that is specifically designed to obtain a fast conformational clustering of long molecular dynamics simulation trajectories. In this approach we combine two dimensionality reduction…

化学物理 · 物理学 2023-08-09 Simon Hunkler , Kay Diederichs , Oleksandra Kukharenko , Christine Peter

We develop an effective nonhierarchical data clustering method using an analogy to the dynamic coarse graining of a stochastic system. Analyzing the eigensystem of an interitem transition matrix identifies fuzzy clusters corresponding to…

数据分析、统计与概率 · 物理学 2009-11-10 Daniel Korenblum , David Shalloway

Ensuring that predicted probabilities align with observed frequencies is critical in high-stakes domains such as clinical decision support, autonomous driving and financial risk assessment. Existing calibration methods typically apply a…

机器学习 · 计算机科学 2026-05-26 Tomer Lavi , Bracha Shapira , Nadav Rappoport

End-to-end ASR models, despite their success on benchmarks, often pro-duce catastrophic semantic errors in noisy environments. We attribute this fragility to the prevailing 'direct mapping' objective, which solely penalizes final output…

计算与语言 · 计算机科学 2025-08-25 Xuwen Yang

In this paper we present a new dynamical systems algorithm for clustering in hyperspectral images. The main idea of the algorithm is that data points are \`pushed\' in the direction of increasing density and groups of pixels that end up in…

计算机视觉与模式识别 · 计算机科学 2022-07-22 William F. Basener , Alexey Castrodad , David Messinger , Jennifer Mahle , Paul Prue

Clusters of galaxies are the most massive objects in the Universe and mapping their location is an important astronomical problem. This paper describes an algorithm (based on statistical signal processing methods), a software architecture…

天体物理学 · 物理学 2015-05-26 Jeremy Kepner , Rita Kim

Identifying a suitable set of descriptors for modeling physical systems often utilizes either deep physical insights or statistical methods such as compressed sensing. In statistical learning, a class of methods known as structured sparsity…

材料科学 · 物理学 2019-10-30 Zhidong Leong , Teck Leong Tan

We investigate the high-dimensional data clustering problem by proposing a novel and unsupervised representation learning model called Robust Flexible Auto-weighted Local-coordinate Concept Factorization (RFA-LCF). RFA-LCF integrates the…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Zhao Zhang , Yan Zhang , Sheng Li , Guangcan Liu , Meng Wang , Shuicheng Yan

A new model-based procedure is developed for sparse clustering of functional data that aims to classify a sample of curves into homogeneous groups while jointly detecting the most informative portions of domain. The proposed method is…

统计方法学 · 统计学 2023-10-04 Fabio Centofanti , Antonio Lepore , Biagio Palumbo

Non-independent and identically distributed (Non- IID) data adversely affects federated learning (FL) while heterogeneity in communication quality can undermine the reliability of model parameter transmission, potentially degrading wireless…

机器学习 · 计算机科学 2024-11-15 Pengcheng Sun , Erwu Liu , Wei Ni , Kanglei Yu , Xinyu Qu , Rui Wang , Yanlong Bi , Chuanchun Zhang , Abbas Jamalipour

Clustering is a widely used unsupervised learning method for finding structure in the data. However, the resulting clusters are typically presented without any guarantees on their robustness; slightly changing the used data sample or…

机器学习 · 统计学 2017-01-02 Andreas Henelius , Kai Puolamäki , Henrik Boström , Panagiotis Papapetrou

Cloud computing has established itself as the support for the vast majority of emerging technologies, mainly due to the characteristic of elasticity it offers. Auto-scalers are the systems that enable this elasticity by acquiring and…

分布式、并行与集群计算 · 计算机科学 2025-10-24 Víctor Rampérez , Javier Soriano , David Lizcano , Juan A. Lara
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