Results 11 to 20 of about 1,429,531 (305)

Ensemble clustering via heuristic optimisation [PDF]

open access: yes, 2010
This thesis was submitted for the degree of Doctor of Philosophy and was awarded by Brunel UniversityTraditional clustering algorithms have different criteria and biases, and there is no single algorithm that can be the best solution for a wide range of ...
Li, Jian
core   +7 more sources

Clustering cluster algebras with clusters

open access: yesAdvances in Theoretical and Mathematical Physics, 2023
Classification of cluster variables in cluster algebras (in particular, Grassmannian cluster algebras) is an important problem, which has direct application to computations of scattering amplitudes in physics. In this paper, we apply the tableaux method to classify cluster variables in Grassmannian cluster algebras $\mathbb{C}[Gr(k,n)]$ up to $(k,n)=(3,
Cheung, M-W   +5 more
openaire   +4 more sources

To cluster, or not to cluster: An analysis of clusterability methods [PDF]

open access: yesPattern Recognition, 2019
Clustering is an essential data mining tool that aims to discover inherent cluster structure in data. For most applications, applying clustering is only appropriate when cluster structure is present. As such, the study of clusterability, which evaluates whether data possesses such structure, is an integral part of cluster analysis. However, methods for
Andreas Adolfsson   +2 more
openaire   +3 more sources

A hybrid clustering method based on the several diverse basic clustering and meta-clustering aggregation technique [PDF]

open access: yes, 2022
In hybrid clustering, several basic clustering is first generated and then for the clustering aggregation, a function is used in order to create a final clustering that is similar to all the basic clustering as much as possible.
Saeidlou, Salman, Lu, Bei, Zhou, Bing
core   +1 more source

Persistence in cluster-cluster aggregation [PDF]

open access: yesPhysical Review E, 2002
Persistence is considered in diffusion--limited cluster--cluster aggregation, in one dimension and when the diffusion coefficient of a cluster depends on its size $s$ as $D(s) \sim s^γ$. The empty and filled site persistences are defined as the probabilities, that a site has been either empty or covered by a cluster all the time whereas the cluster ...
Hellén, E.K.O., Alava, M.J.
openaire   +4 more sources

Clustering Cycles into Cycles of Clusters [PDF]

open access: yesJournal of Graph Algorithms and Applications, 2005
Summary: We study simple families of clustered graphs that are highly unconnected. We start by studying 3-cluster cycles, which are clustered graphs such that the underlying graph is a simple cycle and there are three clusters all at the same level. We show that in this case, testing the c-planarity can be done efficiently and give an efficient drawing
Pier Francesco Cortese   +3 more
openaire   +5 more sources

Cluster-cluster clustering

open access: yesThe Astrophysical Journal, 1985
The cluster correlation function xi sub c(r) is compared with the particle correlation function, xi(r) in cosmological N-body simulations with a wide range of initial conditions. The experiments include scale-free initial conditions, pancake models with a coherence length in the initial density field, and hybrid models.
J. Barnes   +3 more
openaire   +1 more source

Application of Multivariate-Rank-Based Techniques in Clustering of Big Data

open access: yesVikalpa, 2018
Executive Summary Very large or complex data sets, which are difficult to process or analyse using traditional data handling techniques, are usually referred to as big data.
Pritha Guha
doaj   +1 more source

Distributed Dynamic Cluster-Head Selection and Clustering for Massive IoT Access in 5G Networks

open access: yesApplied Sciences, 2019
With the rapid growth of Internet-of-things (IoT) devices, IoT communication has become an increasingly crucial part of 5G wireless communication systems.
Yifeng Zhao   +4 more
doaj   +1 more source

Histology-informed automatic parcellation of white matter tracts in the rat spinal cord

open access: yesFrontiers in Neuroanatomy, 2022
The white matter is organized into “tracts” or “bundles,” which connect different parts of the central nervous system. Knowing where these tracts are located in each individual is important for understanding the cause of potential sensorial, motor or ...
Harris Nami   +4 more
doaj   +1 more source

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