Results 11 to 20 of about 843,626 (294)

Universal Algorithms for Clustering Problems

open access: yesACM Transactions on Algorithms, 2023
This article presentsuniversalalgorithms for clustering problems, including the widely studiedk-median,k-means, andk-center objectives. The input is a metric space containing allpotentialclient locations. The algorithm must selectkcluster centers such that they are a good solution foranysubset of clients that actually realize.
Arun Ganesh   +2 more
openaire   +4 more sources

Clustering based hybrid approach for facility location problem [PDF]

open access: yesManagement Science Letters, 2017
The main objective of facility location problem is the utilization of the facility by maximum number of possible customers so that the profit is maximized.
Ashish Sharma   +2 more
doaj   +1 more source

Improved Ramp-Based Twin Support Vector Clustering [PDF]

open access: yesJisuanji kexue yu tansuo, 2023
Twin support vector clustering based on Hinge loss and twin support vector clustering based on Ramp loss are two new twin support vector clustering algorithms, which provide a new research idea for solving the clustering problem, and gradually become a ...
CHEN Sugen, LIU Yufei
doaj   +1 more source

Problems of Clustering of Radiogalaxies [PDF]

open access: yesProceedings of the International Astronomical Union, 2012
AbstractWe present the preliminary analysis of clustering of a sample of 1157 radio-identified galaxies from Machalski & Condon (1999). We found that for separations 2–15 h−1 Mpc their redshift space autocorrelation function ξ(s) can be approximated by the power law with the correlation length ~3.75h−1 Mpc and slope γ ~ 1.8.
Godłowski, Włodzimierz   +2 more
openaire   +3 more sources

A Two-Stage Evolutionary Fuzzy Clustering Framework for Noisy Image Segmentation

open access: yesIEEE Access, 2020
This article presents a two-stage evolutionary fuzzy clustering framework for noisy image segmentation. It is a bi-stage system comprising a multi-objective optimization stage and a fuzzy clustering segmentation stage. In the multi-objective optimization
Licheng Jiao   +4 more
doaj   +1 more source

Approximate Clustering via Metric Partitioning [PDF]

open access: yes, 2016
In this paper we consider two metric covering/clustering problems - \textit{Minimum Cost Covering Problem} (MCC) and $k$-clustering. In the MCC problem, we are given two point sets $X$ (clients) and $Y$ (servers), and a metric on $X \cup Y$.
Bandyapadhyay, Sayan   +1 more
core   +2 more sources

Robust hierarchical k-center clustering [PDF]

open access: yes, 2015
One of the most popular and widely used methods for data clustering is hierarchical clustering. This clustering technique has proved useful to reveal interesting structure in the data in several applications ranging from computational biology to computer
Lattanzi, Silvio   +3 more
core   +1 more source

Greedy Strategy Works for k-Center Clustering with Outliers and Coreset Construction [PDF]

open access: yes, 2019
We study the problem of k-center clustering with outliers in arbitrary metrics and Euclidean space. Though a number of methods have been developed in the past decades, it is still quite challenging to design quality guaranteed algorithm with low ...
Ding, Hu, Wang, Zixiu, Yu, Haikuo
core   +2 more sources

A hybrid distance measure for clustering expressed sequence tags originating from the same gene family. [PDF]

open access: yesPLoS ONE, 2012
BACKGROUND: Clustering is a key step in the processing of Expressed Sequence Tags (ESTs). The primary goal of clustering is to put ESTs from the same transcript of a single gene into a unique cluster.
Keng-Hoong Ng   +2 more
doaj   +1 more source

Application of Multi-Objective Hyper-Heuristics to Solve the Multi-Objective Software Module Clustering Problem

open access: yesApplied Sciences, 2022
Software maintenance is an important step in the software lifecycle. Software module clustering is a HHMO_CF_GDA optimization problem involving several targets that require minimization of module coupling and maximization of software cohesion.
Haya Alshareef, Mashael Maashi
doaj   +1 more source

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