301 search results - page 4 / 61 » Topic models with power-law using Pitman-Yor process |
FS
2011
12 years 8 months ago
2011
Abstract We derive an explicit representation of the transitions of the Heston stochastic volatility model and use it for fast and accurate simulation of the model. Of particular i...
ICML
2009
IEEE
14 years 6 months ago
2009
IEEE
We propose an unbounded-depth, hierarchical, Bayesian nonparametric model for discrete sequence data. This model can be estimated from a single training sequence, yet shares stati...
EMNLP
2009
13 years 3 months ago
2009
We extend previous work on fully unsupervised part-of-speech tagging. Using a non-parametric version of the HMM, called the infinite HMM (iHMM), we address the problem of choosing...
PR
2007
13 years 4 months ago
2007
In this paper, we shall address the issue of semantic extraction of different regions of interest. The proposed approach is based on statistical methods and models inspired from l...
COMSWARE
2007
IEEE
13 years 11 months ago
2007
IEEE
— Recent studies on wireless sensor networks (WSN) have shown that the duration of contacts and inter-contacts are power law distributed. While this is a strong property of these...