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Polynomial-Time Solvability of the One-Dimensional Case of an NP-Hard Clustering Problem. / Kel’manov, A. V.; Khandeev, V. I.
в: Computational Mathematics and Mathematical Physics, Том 59, № 9, 01.09.2019, стр. 1553-1561.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Polynomial-Time Solvability of the One-Dimensional Case of an NP-Hard Clustering Problem
AU - Kel’manov, A. V.
AU - Khandeev, V. I.
N1 - Publisher Copyright: © 2019, Pleiades Publishing, Ltd. Copyright: Copyright 2019 Elsevier B.V., All rights reserved.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - Abstract: We consider the problem of partitioning a finite set of points in Euclidean space into clusters so as to minimize the sum, over all clusters, of the intracluster sums of the squared distances between cluster elements and their centers. The centers of some of the clusters are given as an input, while the centers of the others are determined as centroids (geometric centers). It is known that, in the general case, this problem is strongly NP-hard. We prove constructively that the one-dimensional case of this problem is solvable in polynomial time.
AB - Abstract: We consider the problem of partitioning a finite set of points in Euclidean space into clusters so as to minimize the sum, over all clusters, of the intracluster sums of the squared distances between cluster elements and their centers. The centers of some of the clusters are given as an input, while the centers of the others are determined as centroids (geometric centers). It is known that, in the general case, this problem is strongly NP-hard. We prove constructively that the one-dimensional case of this problem is solvable in polynomial time.
KW - clustering
KW - Euclidean space
KW - minimum sum-of-squares
KW - one-dimensional case
KW - partitioning
KW - polynomial-time solvability
KW - strongly NP-hard problem
KW - COMPLEXITY
UR - http://www.scopus.com/inward/record.url?scp=85073559723&partnerID=8YFLogxK
U2 - 10.1134/S0965542519090112
DO - 10.1134/S0965542519090112
M3 - Article
AN - SCOPUS:85073559723
VL - 59
SP - 1553
EP - 1561
JO - Computational Mathematics and Mathematical Physics
JF - Computational Mathematics and Mathematical Physics
SN - 0965-5425
IS - 9
ER -
ID: 21938810