496 search results - page 24 / 100 » A Polynomial-Time Approximation Algorithm for a Geometric Di... |
CEC
2008
IEEE
14 years 2 months ago
2008
IEEE
— Recently it has been proved that the (1+1)-EA produces poor worst-case approximations for the vertex cover problem. In this paper the result is extended to the (1+λ)-EA by pro...
WADS
2009
Springer
14 years 2 months ago
2009
Springer
Abstract. The buy-at-bulk network design problem has been extensively studied in the general graph model. In this paper we consider the geometric version of the problem, where all ...
SODA
2010
ACM
14 years 5 months ago
2010
ACM
If a two-player social welfare maximization problem does not admit a PTAS, we prove that any maximal-in-range truthful mechanism that runs in polynomial time cannot achieve an app...
DAC
2009
ACM
14 years 8 months ago
2009
ACM
Abstract--To reduce chip-scale topography variation in Chemical Mechanical Polishing (CMP) process, dummy fill is widely used to improve the layout density uniformity. Previous res...
ISAAC
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. We study the problem of maintaining a (1+ )-factor approximation of the diameter of a stream of points under the sliding window model. In one dimension, we give a simple ...