Results 11 to 20 of about 11,198,909 (310)

Spherical k-Means Clustering

open access: yesJournal of Statistical Software, 2012
Clustering text documents is a fundamental task in modern data analysis, requiring approaches which perform well both in terms of solution quality and computational efficiency.
Kurt Hornik   +3 more
doaj   +3 more sources

Genetic K-means algorithm [PDF]

open access: yesIEEE Transactions on Systems, Man and Cybernetics, Part B (Cybernetics), 1999
In this paper, we propose a novel hybrid genetic algorithm (GA) that finds a globally optimal partition of a given data into a specified number of clusters. GA's used earlier in clustering employ either an expensive crossover operator to generate valid child chromosomes from parent chromosomes or a costly fitness function or both.
Krishna, K, Murty, Narasimha M
openaire   +4 more sources

Inference with K-means

open access: yesCoRR
15 ...
Alfred K. Adzika, Prudence Djagba
openaire   +3 more sources

MathildeChen/PCA-K-means-for-PA-features: K-means-for-PA-features v0.1

open access: yes, 2021
First release of the scripts used to identify profiles of movement behavior using k ...
MathildeCh3n
core   +2 more sources

doan-van/S-k-means: S-k-means

open access: yes, 2022
S k-means program was developed by a team led by Quang-Van DOAN at the Center for Computational Sciences (CCS), the University of Tsukuba. S k-means can be used by any person or entity for any purpose without any fee or charge.
Van Doan
core   +1 more source

K-means and fuzzy c-means algorithm comparison on regency/city grouping in Central Java Province

open access: yesDesimal, 2022
The Human Development Index (HDI) is very important in measuring the country's success as an effort to build the quality of life of people in a region, including Indonesia. The government needs to make groupings based on the needs of a city/district.
Ummu Wachidatul Latifah   +2 more
doaj   +1 more source

Improving Scalable K-Means++

open access: yesAlgorithms, 2020
Two new initialization methods for K-means clustering are proposed. Both proposals are based on applying a divide-and-conquer approach for the K-means‖ type of an initialization strategy. The second proposal also uses multiple lower-dimensional subspaces
Joonas Hämäläinen   +2 more
doaj   +1 more source

ck-means and fck-means: Two Deterministic Initialization Procedures for k-means Algorithm Using a Modified Crowding Distance

open access: yes, 2023
This paper presents two novel deterministic initialization procedures for k-means clustering based on a modified crowding distance. The procedures, named ck-means and fck-means, use more crowded points as initial centroids.
Abdesslem Layeb
core   +1 more source

The development of a GIS for New Deal Archaeology

open access: yesBulletin of the History of Archaeology, 2011
I have recently launched an effort to create a GIS of all New Deal-funded archaeological investigations conducted in the 48 states that comprised the USA during the Great Depression (Means 2011).
Bernard K. Means
doaj   +1 more source

$k$-means clustering of extremes [PDF]

open access: yesElectronic Journal of Statistics, 2020
The $k$-means clustering algorithm and its variant, the spherical $k$-means clustering, are among the most important and popular methods in unsupervised learning and pattern detection. In this paper, we explore how the spherical $k$-means algorithm can be applied in the analysis of only the extremal observations from a data set.
Janßen, Anja, Wan, Phyllis
openaire   +5 more sources

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