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» Computing Roundness is Easy if the Set is Almost Round
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SODA
2008
ACM
106views Algorithms» more  SODA 2008»
15 years 8 months ago
Exact and efficient 2D-arrangements of arbitrary algebraic curves
We show how to compute the planar arrangement induced by segments of arbitrary algebraic curves with the Bentley-Ottmann sweep-line algorithm. The necessary geometric primitives r...
Arno Eigenwillig, Michael Kerber
CORR
2004
Springer
103views Education» more  CORR 2004»
15 years 6 months ago
Online convex optimization in the bandit setting: gradient descent without a gradient
We study a general online convex optimization problem. We have a convex set S and an unknown sequence of cost functions c1, c2, . . . , and in each period, we choose a feasible po...
Abraham Flaxman, Adam Tauman Kalai, H. Brendan McM...
MOBIHOC
2008
ACM
16 years 6 months ago
An O(log n) dominating set protocol for wireless ad-hoc networks under the physical interference model
Dealing with interference is one of the primary challenges to solve in the design of protocols for wireless ad-hoc networks. Most of the work in the literature assumes localized o...
Christian Scheideler, Andréa W. Richa, Paol...
ICC
2007
IEEE
124views Communications» more  ICC 2007»
16 years 27 days ago
Optimal Scheduling Policy Determination for High Speed Downlink Packet Access
— In this paper, we present an analytic model and methodology to determine optimal scheduling policy that involves two dimension space allocation: time and code, in High Speed Do...
Hussein Al-Zubaidy, Jerome Talim, Ioannis Lambadar...
CSIE
2009
IEEE
16 years 1 months ago
Improvement of BW Multi-party Contract Signing Protocol: Model and Formal Analysis
A multi-party contract signing (MPCS) protocol allows a set of parties to exchange messages with each other to arrive in a state in which either each of them has a pre-agreed cont...
Xiangdong Li, Qingxian Wang, Xiaoyan Jin