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» Approximation bounds for Black Hole Search problems
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STOC
2006
ACM
92views Algorithms» more  STOC 2006»
16 years 1 hour ago
On the importance of idempotence
Range searching is among the most fundamental problems in computational geometry. An n-element point set in Rd is given along with an assignment of weights to these points from so...
Sunil Arya, Theocharis Malamatos, David M. Mount
HEURISTICS
2008
136views more  HEURISTICS 2008»
14 years 10 months ago
Enhancing set constraint solvers with lexicographic bounds
Since their beginning in constraint programming, set solvers have been applied to a wide range of combinatorial search problems, such as bin-packing, set partitioning, circuit desi...
Andrew Sadler, Carmen Gervet
APPROX
2008
Springer
245views Algorithms» more  APPROX 2008»
15 years 1 months ago
Approximating Optimal Binary Decision Trees
Abstract. We give a (ln n + 1)-approximation for the decision tree (DT) problem. An instance of DT is a set of m binary tests T = (T1, . . . , Tm) and a set of n items X = (X1, . ....
Micah Adler, Brent Heeringa
ALGORITHMICA
2010
92views more  ALGORITHMICA 2010»
14 years 11 months ago
Quantum Separation of Local Search and Fixed Point Computation
In this paper, we give a lower bound of (n(d-1)/2 ) on the quantum query complexity for finding a fixed point of a discrete Brouwer function over grid [1 : n]d . Our bound is near...
Xi Chen, Xiaoming Sun, Shang-Hua Teng
CDC
2008
IEEE
113views Control Systems» more  CDC 2008»
15 years 6 months ago
Model reduction for a class of input-quantized systems in the max-plus algebra
Abstract— We present a systematic method for model reduction of a class of input-quantized systems in the max-plus algebra. We consider a generalization of the flow shop with ï¬...
Whitney Weyerman, Sean Warnick