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We present a novel approach that combines machine learning based interactive image segmentation using supervoxels with a clustering method for the automated identification of similarly colored images in large data sets which enables a…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Adrian Friebel , Tim Johann , Dirk Drasdo , Stefan Hoehme

Random walks can reveal communities or clusters in networks, because they are more likely to stay within a cluster than leave it. Thus, one family of community detection algorithms uses random walks to measure distance between pairs of…

无序系统与神经网络 · 物理学 2023-08-11 Eric Chalmers , Artur Luczak

In machine learning and data mining, Cluster analysis is one of the most widely used unsupervised learning technique. Philosophy of this algorithm is to find similar data items and group them together based on any distance function in…

机器学习 · 统计学 2018-10-09 Kumarjit Pathak , Jitin Kapila

Instance-level alignment is widely exploited for person re-identification, e.g. spatial alignment, latent semantic alignment and triplet alignment. This paper probes another feature alignment modality, namely cluster-level feature alignment…

计算机视觉与模式识别 · 计算机科学 2020-08-18 Qiuyu Chen , Wei Zhang , Jianping Fan

Clustering is a popular form of unsupervised learning for geometric data. Unfortunately, many clustering algorithms lead to cluster assignments that are hard to explain, partially because they depend on all the features of the data in a…

机器学习 · 计算机科学 2020-09-23 Sanjoy Dasgupta , Nave Frost , Michal Moshkovitz , Cyrus Rashtchian

Correlation clustering is a flexible framework for partitioning data based solely on pairwise similarity or dissimilarity information, without requiring the number of clusters as input. However, in many practical scenarios, these pairwise…

机器学习 · 计算机科学 2025-12-11 Linus Aronsson , Morteza Haghir Chehreghani

We consider the problem of estimating the number of clusters (k) in a dataset. We propose a non-parametric approach to the problem that utilizes similarity graphs to construct a robust statistic that effectively captures similarity…

统计方法学 · 统计学 2025-06-13 Yichuan Bai , Lynna Chu

To understand complex biological systems, the research community has produced huge corpus of gene expression data. A large number of clustering approaches have been proposed for the analysis of gene expression data. However, extracting…

计算工程、金融与科学 · 计算机科学 2010-03-28 Swathi. H

Active learning selects the most informative samples from the unlabelled dataset to annotate in the context of a limited annotation budget. While numerous methods have been proposed for subsequent sample selection based on an initialized…

机器学习 · 计算机科学 2024-03-28 Han Yuan , Chuan Hong

Clustering methods are a valuable tool for the identification of patterns in high dimensional data with applications in many scientific problems. However, quantifying uncertainty in clustering is a challenging problem, particularly when…

统计方法学 · 统计学 2018-06-01 Marcio Valk , Gabriela Bettella Cybis

We recently proposed a new ensemble clustering algorithm for graphs (ECG) based on the concept of consensus clustering. We validated our approach by replicating a study comparing graph clustering algorithms over benchmark graphs, showing…

机器学习 · 计算机科学 2021-02-17 Valérie Poulin , François Théberge

Image segmentation aims at identifying regions of interest within an image, by grouping pixels according to their properties. This task resembles the statistical one of clustering, yet many standard clustering methods fail to meet the basic…

计算机视觉与模式识别 · 计算机科学 2021-01-22 Giovanna Menardi

Discovering new intents is a crucial task in dialogue systems. Most existing methods are limited in transferring the prior knowledge from known intents to new intents. They also have difficulties in providing high-quality supervised signals…

计算与语言 · 计算机科学 2023-04-24 Hanlei Zhang , Hua Xu , Ting-En Lin , Rui Lyu

Clustering is one of the most crucial problems in unsupervised learning, and the well-known $k$-means clustering algorithm has been shown to be implementable on a quantum computer with a significant speedup. However, many clustering…

量子物理 · 物理学 2023-01-03 Qingyu Li , Yuhan Huang , Shan Jin , Xiaokai Hou , Xiaoting Wang

Spatial information from cell-surface receptors is crucial for processes that require signal processing and sensing of the environment. Here, we investigate the optimal placement of such receptors through a theoretical model that minimizes…

生物物理 · 物理学 2025-04-17 Albert Alonso , Robert G. Endres , Julius B. Kirkegaard

According to the circumplex model of affect, an emotional response could characterized by a level of pleasure (valence) and intensity (arousal). As it reflects on the autonomic nervous system (ANS) activity, modern wearable wristbands can…

机器学习 · 计算机科学 2025-04-16 Marta A. Conceição , Antoine Dubois , Sonja Haustein , Bruno Miranda , Carlos Lima Azevedo

Voxel-based lesion-symptom mapping (VLSM) is a major method for studying brain-behavior relationships that leverages modern neuroimaging analysis techniques to build on the classic approach of examining the relationship between location of…

应用统计 · 统计学 2016-06-03 Daniel Mirman , Jon-Frederick Landrigan , Spiro Kokolis , Sean Verillo , Casey Ferrara

A general approach to selective inference is considered for hypothesis testing of the null hypothesis represented as an arbitrary shaped region in the parameter space of multivariate normal model. This approach is useful for hierarchical…

统计理论 · 数学 2018-03-28 Yoshikazu Terada , Hidetoshi Shimodaira

Brain atlases are essential for reducing the dimensionality of neuroimaging data and enabling interpretable analysis. However, most existing atlases are predefined, group-level templates with limited flexibility and resolution. We present…

神经元与认知 · 定量生物学 2025-09-23 Mo Wang , Kaining Peng , Jingsheng Tang , Hongkai Wen , Quanying Liu

The cluster mass test has been widely used for massively univariate tests in M/EEG, fMRI and, recently, pupillometry analysis. It is a powerful method for detecting effects while controlling weakly the family-wise error rate (FWER),…

统计方法学 · 统计学 2021-09-08 Jaromil Frossard , Olivier Renaud