510 search results - page 16 / 102 » Gradient Estimation Revitalized |
CSDA
2006
14 years 9 months ago
2006
We propose a multivariate methodology based on Functional Gradient Descent to estimate and forecast time-varying expected bond returns. Backtesting our procedure on US monthly dat...
ICPR
2004
IEEE
15 years 10 months ago
2004
IEEE
In this paper we address the problem of simultaneous estimation of structure and restoration of images from blurred photometric measurements. Given the blurred observations of a s...
TSP
2010
14 years 4 months ago
2010
Abstract--We derive a class of algorithms for independent component analysis (ICA) based on maximum likelihood (ML) estimation and perform stability analysis of natural gradient ML...
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CVPR
2008
IEEE
15 years 11 months ago
2008
IEEE
In this paper, we propose an image super-resolution approach using a novel generic image prior ? gradient profile prior, which is a parametric prior describing the shape and the s...
CIS
2005
Springer
15 years 3 months ago
2005
Springer
Recently, actor-critic methods have drawn much interests in the area of reinforcement learning, and several algorithms have been studied along the line of the actor-critic strategy...