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Pitman–Yor process

Known as: Pitman-Yor distribution, Pitman-Yor process, Pitman–Yor distribution 
In probability theory, a Pitman–Yor process denoted PY(d, θ, G0), is a stochastic process whose sample path is a probability distribution. A random… 
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Related topics

Related topics

2 relations
Latent Dirichlet allocationStochastic process

Papers overview

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2019
2019
Bottom-Up Unsupervised Word Discovery via Acoustic Units
Unsupervised term discovery is the task of identifying and grouping reoccurring word-like patterns from the untranscribed audio… 
2018
2018
Short text clustering based on Pitman-Yor process mixture model
For finding the appropriate number of clusters in short text clustering, models based on Dirichlet Multinomial Mixture (DMM… 
2014
2014
Parallel Markov Chain Monte Carlo for Pitman-Yor Mixture Models
The Pitman-Yor process provides an elegant way to cluster data that exhibit power law behavior, where the number of clusters is… 
2012
2012
The Kernel Pitman-Yor Process
In this work, we propose the kernel Pitman-Yor process (KPYP) for nonparametric clustering of data with general spatial or… 
Highly Cited
2010
Highly Cited
2010
Topic models with power-law using Pitman-Yor process
One important approach for knowledge discovery and data mining is to estimate unobserved variables because latent variables can… 
2009
2009
A parallel training algorithm for hierarchical pitman-yor process language models
The Hierarchical Pitman Yor Process Language Model (HPYLM) is a Bayesian language model based on a nonparametric prior, the… 
Highly Cited
2008
Highly Cited
2008
Shared Segmentation of Natural Scenes Using Dependent Pitman-Yor Processes
We develop a statistical framework for the simultaneous, unsupervised segmentation and discovery of visual object categories from… 
2008
2008
Bayesian Modeling of Dependency Trees Using Hierarchical Pitman-Yor Priors
In this paper, we describe two hierarchical Bayesian models for dependency trees. First, we show that Eisner’s classic generative… 
2005
2005
Numerical Valuation of American Options Under the CGMY Process
American put options written on an underlying stock following a Carr-Madan-Geman-Yor (CGMY) process are considered. It is known… 
2004
2004
Modeling the Volatility and Expected Value of a Diversified World Index
This paper considers a diversified world stock index in a continuous financial market with the growth optimal portfolio (GOP) as… 
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