Results 51 to 60 of about 232,287 (178)

Kernel Spectral Clustering and Applications [PDF]

open access: yes, 2016
In this chapter we review the main literature related to kernel spectral clustering (KSC), an approach to clustering cast within a kernel-based optimization setting. KSC represents a least-squares support vector machine based formulation of spectral clustering described by a weighted kernel PCA objective.
Langone, Rocco   +3 more
openaire   +2 more sources

Species complex delimitations in the genus Hedychium: A machine learning approach for cluster discovery

open access: yesApplications in Plant Sciences, 2020
Premise Statistical methods used by most morphologists to validate species boundaries (such as principal component analysis [PCA] and non‐metric multidimensional scaling [nMDS]) are limiting because these methods are mostly used as visualization methods,
Preeti Saryan   +2 more
doaj   +1 more source

Hearing the clusters in a graph: A distributed algorithm [PDF]

open access: yes, 2011
We propose a novel distributed algorithm to cluster graphs. The algorithm recovers the solution obtained from spectral clustering without the need for expensive eigenvalue/vector computations.
Banaszuk, Andrzej   +2 more
core  

Spectral clustering for jet physics

open access: yesJournal of High Energy Physics, 2022
We present a new approach to jet definition alternative to clustering methods, such as the anti-kT scheme, that exploit kinematic data directly. Instead the new method uses kinematic information to represent the particles in a multidimensional space, as ...
Giorgio Cerro   +5 more
doaj   +1 more source

Spectral-Spatial Clustering with a Local Weight Parameter Determination Method for Remote Sensing Imagery

open access: yesRemote Sensing, 2016
Remote sensing image clustering is a challenging task considering its intrinsic complexity. Recently, by combining the spectral and spatial information of the remote sensing data, the clustering performance can be dramatically enhanced, termed as ...
Ailong Ma, Yanfei Zhong, Liangpei Zhang
doaj   +1 more source

A Method for Detection of Corn Kernel Mildew Based on Co-Clustering Algorithm with Hyperspectral Image Technology

open access: yesSensors, 2022
Hyperspectral imaging can simultaneously acquire spectral and spatial information of the samples and is, therefore, widely applied in the non-destructive detection of grain quality.
Zhen Kang   +5 more
doaj   +1 more source

Making Laplacians commute [PDF]

open access: yes, 2013
In this paper, we construct multimodal spectral geometry by finding a pair of closest commuting operators (CCO) to a given pair of Laplacians. The CCOs are jointly diagonalizable and hence have the same eigenbasis.
Bronstein, Michael M.   +2 more
core  

Tensor Spectral Clustering for Partitioning Higher-order Network Structures

open access: yes, 2015
Spectral graph theory-based methods represent an important class of tools for studying the structure of networks. Spectral methods are based on a first-order Markov chain derived from a random walk on the graph and thus they cannot take advantage of ...
Benson, Austin R.   +2 more
core   +1 more source

Large Scale Spectral Clustering Using Approximate Commute Time Embedding

open access: yes, 2012
Spectral clustering is a novel clustering method which can detect complex shapes of data clusters. However, it requires the eigen decomposition of the graph Laplacian matrix, which is proportion to $O(n^3)$ and thus is not suitable for large scale ...
C. Fowlkes   +10 more
core   +1 more source

An Improvement of Spectral Clustering via Message Passing and Density Sensitive Similarity

open access: yesIEEE Access, 2019
Spectral clustering transforms the data clustering problem into a graph-partitioning problem and classifies data points by finding the optimal sub-graphs. Traditional spectral clustering algorithms use Gaussian kernel function to construct the similarity
Lijuan Wang, Shifei Ding, Hongjie Jia
doaj   +1 more source

Home - About - Disclaimer - Privacy