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» Inapproximability of Combinatorial Optimization Problems
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CEC
2010
IEEE
13 years 11 months ago
Geometric Nelder-Mead Algorithm for the permutation representation
The Nelder-Mead Algorithm (NMA) is an almost half-century old method for numerical optimization, and it is a close relative of Particle Swarm Optimization (PSO) and Differential Ev...
Alberto Moraglio, Julian Togelius
IOR
2007
89views more  IOR 2007»
13 years 9 months ago
Fast, Fair, and Efficient Flows in Networks
Abstract. We study the problem of minimizing the maximum latency of flows in networks with congestion. We show that this problem is NP-hard, even when all arc latency functions ar...
José R. Correa, Andreas S. Schulz, Nicol&aa...
SIGMOD
2010
ACM
208views Database» more  SIGMOD 2010»
13 years 8 months ago
An automated, yet interactive and portable DB designer
Tuning tools attempt to configure a database to achieve optimal performance for a given workload. Selecting an optimal set of physical structures is computationally hard since it ...
Ioannis Alagiannis, Debabrata Dash, Karl Schnaitte...
ICCAD
2007
IEEE
124views Hardware» more  ICCAD 2007»
14 years 6 months ago
3D-STAF: scalable temperature and leakage aware floorplanning for three-dimensional integrated circuits
Abstract— Thermal issues are a primary concern in the threedimensional (3D) integrated circuit (IC) design. Temperature, area, and wire length must be simultaneously optimized du...
Pingqiang Zhou, Yuchun Ma, Zhuoyuan Li, Robert P. ...
ESA
2008
Springer
108views Algorithms» more  ESA 2008»
13 years 11 months ago
Two-Stage Robust Network Design with Exponential Scenarios
Abstract. We study two-stage robust variants of combinatorial optimization problems like Steiner tree, Steiner forest, and uncapacitated facility location. The robust optimization ...
Rohit Khandekar, Guy Kortsarz, Vahab S. Mirrokni, ...