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» The Complexity of Polynomial-Time Approximation
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CPM
2000
Springer
160views Combinatorics» more  CPM 2000»
14 years 1 days ago
Approximation Algorithms for Hamming Clustering Problems
We study Hamming versions of two classical clustering problems. The Hamming radius p-clustering problem (HRC) for a set S of k binary strings, each of length n, is to find p bina...
Leszek Gasieniec, Jesper Jansson, Andrzej Lingas
IJHPCA
2006
75views more  IJHPCA 2006»
13 years 7 months ago
Scheduling Multiple Divisible Loads
In this paper we study the scheduling of multiple divisible loads on a star network of processors. We show that this problem is computationally hard. Special cases solvable in pol...
Maciej Drozdowski, Marcin Lawenda, Fréd&eac...
GLOBECOM
2009
IEEE
13 years 11 months ago
Joint Base Station Placement and Fault-Tolerant Routing in Wireless Sensor Networks
—Fault tolerance techniques have been widely used in wireless sensor networks. Base station placement to maximize the network lifetime has also been well studied. However, limite...
Dejun Yang, Satyajayant Misra, Guoliang Xue
JCO
2008
76views more  JCO 2008»
13 years 7 months ago
On the inapproximability of the exemplar conserved interval distance problem of genomes
In this paper we present two main results about the inapproximability of the exemplar conserved interval distance problem of genomes. First, we prove that it is NP-complete to deci...
Zhixiang Chen, Richard H. Fowler, Bin Fu, Binhai Z...
COLT
1993
Springer
13 years 11 months ago
Parameterized Learning Complexity
We describe three applications in computational learning theory of techniques and ideas recently introduced in the study of parameterized computational complexity. (1) Using param...
Rodney G. Downey, Patricia A. Evans, Michael R. Fe...