2199 search results - page 4 / 440 » Information retrieval using hierarchical dirichlet processes |
ICCV
2007
IEEE
14 years 8 months ago
2007
IEEE
We develop nonparametric Bayesian models for multiscale representations of images depicting natural scene categories. Individual features or wavelet coefficients are marginally de...
SIGIR
2008
ACM
13 years 6 months ago
2008
ACM
The classical probabilistic models attempt to capture the Ad hoc information retrieval problem within a rigorous probabilistic framework. It has long been recognized that the prim...
CICLING
2010
Springer
13 years 10 months ago
2010
Springer
In this paper, we address both standard and focused retrieval tasks based on comprehensible language models and interactive query expansion (IQE). Query topics are expanded using a...
CIKM
2009
Springer
14 years 25 days ago
2009
Springer
In this paper, the task of text segmentation is approached from a topic modeling perspective. We investigate the use of latent Dirichlet allocation (LDA) topic model to segment a ...
CSDA
2010
13 years 6 months ago
2010
We consider mixtures of parametric densities on the positive reals with a normalized generalized gamma process (Brix, 1999) as mixing measure. This class of mixtures encompasses t...