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ICPR
2002
IEEE
15 years 11 months ago
Determining a Suitable Metric when Using Non-Negative Matrix Factorization
The Non-negative Matrix Factorization technique (NMF) has been recently proposed for dimensionality reduction. NMF is capable to produce a region- or partbased representation of o...
David Guillamet, Jordi Vitrià
ECCV
2010
Springer
15 years 11 months ago
2.5D Dual Contouring: A Robust Approach to Creating Building Models from Aerial LiDAR Point Clouds
We present a robust approach to creating 2.5D building models from aerial LiDAR point clouds. The method is guaranteed to produce crack-free models composed of complex roofs and ve...
Qian-Yi Zhou, Ulrich Neumann
CDC
2009
IEEE
121views Control Systems» more  CDC 2009»
15 years 11 months ago
Piecewise-linear constrained control for timed continuous Petri nets
— Timed Continuous Petri Net (TCPN) systems are piecewise linear models with input constraints that can approximate the dynamical behavior of a class of timed discrete event syst...
Carlos Renato Vázquez, Manuel Silva
CALC
2001
Springer
145views Cryptology» more  CALC 2001»
15 years 11 months ago
Fast Reduction of Ternary Quadratic Forms
We show that a positive definite integral ternary form can be reduced with O(M(s) log2 s) bit operations, where s is the binary encoding length of the form and M(s) is the bit-com...
Friedrich Eisenbrand, Günter Rote
ICC
2000
IEEE
143views Communications» more  ICC 2000»
15 years 11 months ago
An Analytical Approach for Closed-Loop Power Control Error Estimations in CDMA Cellular Systems
—This paper proposes an analytical study which aims at evaluating the received power statistics in DS-CDMA cellular systems which use a closed-loop power control scheme to compen...
Andrea Abrardo, Giuliano Benelli, Giovanni Giamben...