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» Positive Versions of Polynomial Time
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MLDM
2010
Springer
14 years 10 months ago
Fast Algorithms for Constant Approximation k-Means Clustering
In this paper we study the k-means clustering problem. It is well-known that the general version of this problem is NP-hard. Numerous approximation algorithms have been proposed fo...
Mingjun Song, Sanguthevar Rajasekaran
FOCS
2009
IEEE
15 years 10 months ago
(Meta) Kernelization
Polynomial time preprocessing to reduce instance size is one of the most commonly deployed heuristics to tackle computationally hard problems. In a parameterized problem, every in...
Hans L. Bodlaender, Fedor V. Fomin, Daniel Lokshta...
ALGOSENSORS
2009
Springer
15 years 10 months ago
Improved Approximation Algorithms for Maximum Lifetime Problems in Wireless Networks
A wireless ad-hoc network is a collection of transceivers positioned in the plane. Each transceiver is equipped with a limited battery charge. The battery charge is then reduced a...
Zeev Nutov, Michael Segal
154
Voted
FUN
2010
Springer
233views Algorithms» more  FUN 2010»
15 years 8 months ago
The Complexity of Flood Filling Games
We study the complexity of the popular one player combinatorial game known as Flood-It. In this game the player is given an n×n board of tiles where each tile is allocated one of ...
David Arthur, Raphaël Clifford, Markus Jalsen...
104
Voted
CCA
2009
Springer
15 years 10 months ago
Curves That Must Be Retraced
We exhibit a polynomial time computable plane curve Γ that has finite length, does not intersect itself, and is smooth except at one endpoint, but has the following property. For...
Xiaoyang Gu, Jack H. Lutz, Elvira Mayordomo