156 search results - page 13 / 32 » A latent variable model for query expansion using the hidden... |
ICML
2009
IEEE
14 years 8 months ago
2009
IEEE
We consider Gaussian multiresolution (MR) models in which coarser, hidden variables serve to capture statistical dependencies among the finest scale variables. Tree-structured MR ...
APPROX
2008
Springer
13 years 9 months ago
2008
Springer
Abstract. Markov random fields are often used to model high dimensional distributions in a number of applied areas. A number of recent papers have studied the problem of reconstruc...
TASLP
2008
13 years 7 months ago
2008
The new model reduces the impact of local spectral and temporal variability by estimating a finite set of spectral and temporal warping factors which are applied to speech at the f...
ICPR
2002
IEEE
14 years 8 months ago
2002
IEEE
We present a distributed, surveillance system that works in large and complex indoor environments. To track and recognize behaviors of people, we propose the use of the Hidden Mar...
ICA
2007
Springer
13 years 11 months ago
2007
Springer
In modelling nonstationary sources, one possible strategy is to define a latent process of strictly positive variables to model variations in second order statistics of the underly...