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AI
2005
Springer
15 years 6 months ago
On the consistency of cardinal direction constraints
We present a formal model for qualitative spatial reasoning with cardinal directions utilizing a co-ordinate system. Then, we study the problem of checking the consistency of a se...
Spiros Skiadopoulos, Manolis Koubarakis
MMAS
2010
Springer
15 years 1 months ago
A Fast Multigrid Algorithm for Energy Minimization under Planar Density Constraints
The two-dimensional layout optimization problem reinforced by the efficient space utilization demand has a wide spectrum of practical applications. Formulating the problem as a non...
Dorit Ron, Ilya Safro, Achi Brandt
CDC
2008
IEEE
146views Control Systems» more  CDC 2008»
16 years 1 months ago
Control formula for nonlinear systems subject to convex input constraints using control Lyapunov functions
— In this paper, we propose a two-step controller design method with control Lyapunov functions (CLFs) for nonlinear systems with convex input constraints. In the first step, we...
Yasuyuki Satoh, Hisakazu Nakamura, Nami Nakamura, ...
IROS
2007
IEEE
144views Robotics» more  IROS 2007»
16 years 29 days ago
Faster and more accurate face detection on mobile robots using geometric constraints
— We develop a framework to allow generic object detection algorithms to exploit geometric information commonly available to robot vision systems. Robot systems take pictures wit...
Michael Dixon, Frederick Heckel, Robert Pless, Wil...
CPAIOR
2007
Springer
16 years 25 days ago
A Continuous Multi-resources cumulative Constraint with Positive-Negative Resource Consumption-Production
Abstract. This article first introduces an extension of the classical cumulative constraint: each task is no more a rectangle but rather a sequence of contiguous trapezoid sub-tas...
Nicolas Beldiceanu, Emmanuel Poder