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» On Generalized Schur Numbers
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JCT
2007
97views more  JCT 2007»
15 years 4 months ago
What power of two divides a weighted Catalan number?
Given a sequence of integers b = (b0,b1,b2,...) one gives a Dyck path P of length 2n the weight wt(P) = bh1 bh2 ···bhn , where hi is the height of the ith ascent of P. The corr...
Alexander Postnikov, Bruce E. Sagan
HICSS
2005
IEEE
157views Biometrics» more  HICSS 2005»
15 years 10 months ago
A Two-Stage Heuristic for the Vehicle Routing Problem with Time Windows and a Limited Number of Vehicles
The Vehicle Routing Problem with Time Windows (VRPTW) is an important problem in logistics. The problem is to serve a number of customers at minimum cost without violating the cus...
Andrew Lim, Xingwen Zhang
ESA
2004
Springer
139views Algorithms» more  ESA 2004»
15 years 9 months ago
Comparing Real Algebraic Numbers of Small Degree
We study polynomials of degree up to 4 over the rationals or a computable real subfield. Our motivation comes from the need to evaluate predicates in nonlinear computational geome...
Ioannis Z. Emiris, Elias P. Tsigaridas
FOCS
2003
IEEE
15 years 9 months ago
Bounded-Concurrent Secure Two-Party Computation in a Constant Number of Rounds
We consider the problem of constructing a general protocol for secure two-party computation in a way that preserves security under concurrent composition. In our treatment, we foc...
Rafael Pass, Alon Rosen
ATAL
2006
Springer
15 years 8 months ago
Learning the required number of agents for complex tasks
Coordinating agents in a complex environment is a hard problem, but it can become even harder when certain characteristics of the tasks, like the required number of agents, are un...
Sébastien Paquet, Brahim Chaib-draa