382 search results - page 44 / 77 » Gradient estimation in global optimization algorithms |
CISS
2007
IEEE
14 years 2 months ago
2007
IEEE
— We propose an expectation-maximization (EM) technique for locating multiple transmitters based on power levels observed by a set of arbitrarily-placed receivers. Multiple trans...
QRE
2008
13 years 7 months ago
2008
: Kriging-based exploration strategies often rely on a single Ordinary Kriging model which parametric covariance kernel is selected a priori or on the basis of an initial data set....
3DIM
2011
IEEE
12 years 7 months ago
2011
IEEE
—We propose a data-driven, multi-view body pose estimation algorithm for video. It can operate in uncontrolled environments with loosely calibrated and low resolution cameras and...
SAC
2006
ACM
14 years 1 months ago
2006
ACM
Complex environmental modeling often involves a large number of unknown physical and ecological parameters. Parameter estimation is one of the most difficult steps in many modelin...
IPMI
2003
Springer
14 years 8 months ago
2003
Springer
In this paper, we focus on velocity estimation in ultrasound images sequences. Ultrasound images present many difficulties in image processing because of the typically high level o...