Results 51 to 60 of about 3,381,889 (354)

Covariance matrix filtering with bootstrapped hierarchies.

open access: yesPLoS ONE, 2021
Cleaning covariance matrices is a highly non-trivial problem, yet of central importance in the statistical inference of dependence between objects. We propose here a probabilistic hierarchical clustering method, named Bootstrapped Average Hierarchical ...
Christian Bongiorno, Damien Challet
doaj   +1 more source

Divisive hierarchical maximum likelihood clustering

open access: yesBMC Bioinformatics, 2017
Background Biological data comprises various topologies or a mixture of forms, which makes its analysis extremely complicated. With this data increasing in a daily basis, the design and development of efficient and accurate statistical methods has become
Alok Sharma   +2 more
doaj   +1 more source

genieclust: Fast and robust hierarchical clustering

open access: yesSoftwareX, 2021
genieclust is an open source Python and R package that implements the hierarchical clustering algorithm called Genie. This method frequently outperforms other state-of-the-art approaches in terms of clustering quality and speed, supports various ...
Marek Gagolewski
doaj   +1 more source

Higra: Hierarchical Graph Analysis

open access: yesSoftwareX, 2019
Higra — Hierarchical Graph Analysis is a C++/Python library for efficient sparse graph analysis with a special focus on hierarchical methods capable of handling large amount of data.
B. Perret   +5 more
doaj   +1 more source

Scalable adaptive hierarchical clustering [PDF]

open access: yesIEEE Communications Letters, 2002
We propose a new application-level clustering algorithm capable of building an overlay spanning tree among participants of large multicast sessions, without any specific help from the network routers. This algorithm is based on a unique definition of zones around nodes and an innovative adaptive cluster size distribution.
MATHY L.   +3 more
openaire   +4 more sources

A Quantitative Clustering Approach to Ultrametricity in Spin Glasses [PDF]

open access: yes, 2003
We discuss the problem of ultrametricity in mean field spin glasses by means of a hierarchical clustering algorithm. We complement the clustering approach with quantitative testing: we discuss both in some detail.
Ciliberti, Stefano, Marinari, Enzo
core   +2 more sources

Semantic Clustering of Functional Requirements Using Agglomerative Hierarchical Clustering

open access: yesInformation, 2018
Software applications have become a fundamental part in the daily work of modern society as they meet different needs of users in different domains.
Hamzeh Eyal Salman   +3 more
doaj   +1 more source

Tree Structured Dirichlet Processes for Hierarchical Morphological Segmentation [PDF]

open access: yesComputational Linguistics, 2018
This article presents a probabilistic hierarchical clustering model for morphological segmentation. In contrast to existing approaches to morphology learning, our method allows learning hierarchical organization of word morphology as a collection of tree
Burcu Can, Suresh Manandhar
doaj   +1 more source

Scalable Hierarchical Clustering with Tree Grafting [PDF]

open access: yesKnowledge Discovery and Data Mining, 2019
We introduce Grinch, a new algorithm for large-scale, non-greedy hierarchical clustering with general linkage functions that compute arbitrary similarity between two point sets.
Nicholas Monath   +4 more
semanticscholar   +1 more source

On morphological hierarchical representations for image processing and spatial data clustering

open access: yes, 2012
Hierarchical data representations in the context of classi cation and data clustering were put forward during the fties. Recently, hierarchical image representations have gained renewed interest for segmentation purposes. In this paper, we briefly survey
A. Baraldi   +75 more
core   +1 more source

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