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We introduce the ParClusterers Benchmark Suite (PCBS) -- a collection of highly scalable parallel graph clustering algorithms and benchmarking tools that streamline comparing different graph clustering algorithms and implementations. The…

分布式、并行与集群计算 · 计算机科学 2024-11-18 Shangdi Yu , Jessica Shi , Jamison Meindl , David Eisenstat , Xiaoen Ju , Sasan Tavakkol , Laxman Dhulipala , Jakub Łącki , Vahab Mirrokni , Julian Shun

PCA is widely used in health and care research to analyze complex HD datasets, such as patient health records, genetic data, and medical imaging. By reducing dimensionality, PCA helps identify key patterns and trends, which can aid in…

统计方法学 · 统计学 2025-04-01 Nuwan Weeraratne , Lyn Hunt , Jason Kurz

Since the fully convolutional network has achieved great success in semantic segmentation, lots of works have been proposed focusing on extracting discriminative pixel feature representations. However, we observe that existing methods still…

计算机视觉与模式识别 · 计算机科学 2023-01-13 Dongyue Wu , Zilin Guo , Aoyan Li , Changqian Yu , Changxin Gao , Nong Sang

CUR matrix decomposition computes the low rank approximation of a given matrix by using the actual rows and columns of the matrix. It has been a very useful tool for handling large matrices. One limitation with the existing algorithms for…

机器学习 · 计算机科学 2014-11-05 Miao Xu , Rong Jin , Zhi-Hua Zhou

For complex segmentation tasks, the achievable accuracy of fully automated systems is inherently limited. Specifically, when a precise segmentation result is desired for a small amount of given data sets, semi-automatic methods exhibit a…

Partial to Partial Point Cloud Registration (partial PCR) remains a challenging task, particularly when dealing with a low overlap rate. In comparison to the full-to-full registration task, we find that the objective of partial PCR is still…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Yaojie Zhang , Weijun Wang , Tianlun Huang , Zhiyong Wang , Wei Feng

High-resolution images are prevalent in various applications, such as autonomous driving and computer-aided diagnosis. However, training neural networks on such images is computationally challenging and easily leads to out-of-memory errors…

计算机视觉与模式识别 · 计算机科学 2023-03-08 Benjamin Bergner , Christoph Lippert , Aravindh Mahendran

In several application domains, high-dimensional observations are collected and then analysed in search for naturally occurring data clusters which might provide further insights about the nature of the problem. In this paper we describe a…

机器学习 · 统计学 2012-03-07 Brian McWilliams , Giovanni Montana

Principal component analysis (PCA) requires the computation of a low-rank approximation to a matrix containing the data being analyzed. In many applications of PCA, the best possible accuracy of any rank-deficient approximation is at most a…

统计计算 · 统计学 2010-06-04 Vladimir Rokhlin , Arthur Szlam , Mark Tygert

In computer vision, the estimation of the fundamental matrix is a basic problem that has been extensively studied. The accuracy of the estimation imposes a significant influence on subsequent tasks such as the camera trajectory…

计算机视觉与模式识别 · 计算机科学 2015-04-15 Hao Wu , Yi Wan

In industrial defect segmentation tasks, while pixel accuracy and Intersection over Union (IoU) are commonly employed metrics to assess segmentation performance, the output consistency (also referred to equivalence) of the model is often…

计算机视觉与模式识别 · 计算机科学 2023-10-02 Zhen Qu , Xian Tao , Fei Shen , Zhengtao Zhang , Tao Li

In this paper, we present a novel approach for conformal prediction (CP), in which we aim to identify a set of promising prediction candidates -- in place of a single prediction. This set is guaranteed to contain a correct answer with high…

机器学习 · 计算机科学 2021-02-03 Adam Fisch , Tal Schuster , Tommi Jaakkola , Regina Barzilay

In semantic segmentation knowing about all existing classes is essential to yield effective results with the majority of existing approaches. However, these methods trained in a Closed Set of classes fail when new classes are found in the…

计算机视觉与模式识别 · 计算机科学 2020-06-29 Hugo Oliveira , Caio Silva , Gabriel L. S. Machado , Keiller Nogueira , Jefersson A. dos Santos

Developing a reliable and practical face recognition system is a long-standing goal in computer vision research. Existing literature suggests that pixel-wise face alignment is the key to achieve high-accuracy face recognition. By assuming a…

计算机视觉与模式识别 · 计算机科学 2015-01-21 Yuting Zhang , Kui Jia , Yueming Wang , Gang Pan , Tsung-Han Chan , Yi Ma

Consider a two-class classification problem where the number of features is much larger than the sample size. The features are masked by Gaussian noise with mean zero and covariance matrix $\Sigma$, where the precision matrix…

机器学习 · 统计学 2013-11-21 Yingying Fan , Jiashun Jin , Zhigang Yao

Speech enhancement (SE) performance has improved considerably owing to the use of deep learning models as a base function. Herein, we propose a perceptual contrast stretching (PCS) approach to further improve SE performance. The PCS is…

声音 · 计算机科学 2022-07-18 Rong Chao , Cheng Yu , Szu-Wei Fu , Xugang Lu , Yu Tsao

Principal component regression (PCR) is a useful method for regularizing linear regression. Although conceptually simple, straightforward implementations of PCR have high computational costs and so are inappropriate when learning with large…

数值分析 · 数学 2019-03-08 Liron Mor-Yosef , Haim Avron

We present an innovative and widely applicable approach for the detection and classification of stellar clusters, developed for the PHANGS-HST Treasury Program, an $NUV$-to-$I$ band imaging campaign of 38 spiral galaxies. Our pipeline first…

Consider a linear model $Y=X\beta+z$, $z\sim N(0,I_n)$. Here, $X=X_{n,p}$, where both $p$ and $n$ are large, but $p>n$. We model the rows of $X$ as i.i.d. samples from $N(0,\frac{1}{n}\Omega)$, where $\Omega$ is a $p\times p$ correlation…

统计理论 · 数学 2012-05-29 Pengsheng Ji , Jiashun Jin

Visual representation based on covariance matrix has demonstrates its efficacy for image classification by characterising the pairwise correlation of different channels in convolutional feature maps. However, pairwise correlation will…

计算机视觉与模式识别 · 计算机科学 2023-04-27 Saimunur Rahman , Piotr Koniusz , Lei Wang , Luping Zhou , Peyman Moghadam , Changming Sun