Results 11 to 20 of about 2,258,350 (284)

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, MW   +5 more
openaire   +3 more sources

Persistence in cluster-cluster aggregation [PDF]

open access: yesPhysical Review E, 2002
14 pages, 12 figures, RevTeX, submitted to Phys.
Hellén, E.K.O., Alava, M.J.
openaire   +4 more sources

Clustering [PDF]

open access: yes, 2008
Clustering techniques are used to arrange genes in some natural way, that is, to organize genes into groups or clusters with similar behavior across relevant tissue samples (or cell lines). These techniques can also be applied to tissues rather than genes.
McLachlan, G. J., Bean, R. W., Ng, S. K.
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

Machine Learning in Amyotrophic Lateral Sclerosis: Achievements, Pitfalls, and Future Directions

open access: yesFrontiers in Neuroscience, 2019
Background: Amyotrophic Lateral Sclerosis (ALS) is a relentlessly progressive neurodegenerative condition with limited therapeutic options at present. Survival from symptom onset ranges from 3 to 5 years depending on genetic, demographic, and phenotypic ...
Vincent Grollemund   +15 more
doaj   +1 more source

SOTXTSTREAM: Density-based self-organizing clustering of text streams [PDF]

open access: yes, 2017
A streaming data clustering algorithm is presented building upon the density-based selforganizing stream clustering algorithm SOSTREAM. Many density-based clustering algorithms are limited by their inability to identify clusters with heterogeneous ...
Bryant, Avory C., Cios, Krzysztof J.
core   +3 more sources

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

Self-adaptive GA, quantitative semantic similarity measures and ontology-based text clustering [PDF]

open access: yes, 2008
As the common clustering algorithms use vector space model (VSM) to represent document, the conceptual relationships between related terms which do not co-occur literally are ignored.
Li, Chenghua   +3 more
core   +1 more source

Seismic Signal Compression Using Nonparametric Bayesian Dictionary Learning via Clustering

open access: yesAlgorithms, 2017
We introduce a seismic signal compression method based on nonparametric Bayesian dictionary learning method via clustering. The seismic data is compressed patch by patch, and the dictionary is learned online.
Xin Tian, Song Li
doaj   +1 more source

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