Research output: Contribution to journal › Conference article › peer-review
On some finite set clustering problems in euclidean space. / Kel'Manov, Alexander; Pyatkin, Artem.
In: CEUR Workshop Proceedings, Vol. 1987, 01.01.2017, p. 310-315.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - On some finite set clustering problems in euclidean space
AU - Kel'Manov, Alexander
AU - Pyatkin, Artem
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Problems of partitioning a finite set of Euclidean points (vectors) into clusters are considered. The criterion is minimizing the sum over all clusters of: (1) normalized by the cardinality squared norms of the sum of cluster elements, (2) squared norms of the sum of cluster elements, (3) norms of the sum of cluster elements. It is proved that all these problems are strongly NP-hard if the number of clusters is a part of the input, and NP-hard in the ordinary sense if the number of clusters is not a part of the input (is fixed). Moreover, the problems are NP-hard even in the case of dimension 1 (on a line).
AB - Problems of partitioning a finite set of Euclidean points (vectors) into clusters are considered. The criterion is minimizing the sum over all clusters of: (1) normalized by the cardinality squared norms of the sum of cluster elements, (2) squared norms of the sum of cluster elements, (3) norms of the sum of cluster elements. It is proved that all these problems are strongly NP-hard if the number of clusters is a part of the input, and NP-hard in the ordinary sense if the number of clusters is not a part of the input (is fixed). Moreover, the problems are NP-hard even in the case of dimension 1 (on a line).
UR - http://www.scopus.com/inward/record.url?scp=85036671238&partnerID=8YFLogxK
M3 - Conference article
AN - SCOPUS:85036671238
VL - 1987
SP - 310
EP - 315
JO - CEUR Workshop Proceedings
JF - CEUR Workshop Proceedings
SN - 1613-0073
ER -
ID: 10066063