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» On Generalized Schur Numbers
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JCT
2007
97views more  JCT 2007»
13 years 9 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»
14 years 3 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»
14 years 3 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
14 years 3 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
14 years 1 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