301 search results - page 1 / 61 » Topic models with power-law using Pitman-Yor process |
NIPS
2008
13 years 5 months ago
2008
We develop a statistical framework for the simultaneous, unsupervised segmentation and discovery of visual object categories from image databases. Examining a large set of manuall...
CVPR
2011
IEEE
12 years 11 months ago
2011
IEEE
From conventional wisdom and empirical studies of annotated data, it has been shown that visual statistics such as object frequencies and segment sizes follow power law distributi...
KDD
2010
ACM
13 years 8 months ago
2010
ACM
One of the important approaches for Knowledge discovery and Data mining is to estimate unobserved variables because latent variables can indicate hidden and specific properties o...
ICASSP
2010
IEEE
13 years 4 months ago
2010
IEEE
We present an approximation to the Bayesian hierarchical PitmanYor process language model which maintains the power law distribution over word tokens, while not requiring a comput...
SIGIR
2010
ACM
13 years 8 months ago
2010
ACM
In this paper, we propose a new application of Bayesian language model based on Pitman-Yor process for information retrieval. This model is a generalization of the Dirichlet distr...