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ICPR
2002
IEEE
16 years 17 days 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
16 years 15 days 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»
16 years 10 days 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»
16 years 3 days 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»
16 years 1 days 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...