Nonparametric Bayesian Negative Binomial Factor Analysis

Bayesian Analysis

Mingyuan Zhou¹ 

关键词: burstiness;    count matrix factorization;    hierarchical gamma-negative binomial process;    parsimonious representation;    self- and cross-excitation;   

DOI  :  10.1214/17-BA1070

学科分类：统计和概率

来源: Institute of Mathematical Statistics

【 摘 要 】

A common approach to analyze a covariate-sample count matrix, an element of which represents how many times a covariate appears in a sample, is to factorize it under the Poisson likelihood. We show its limitation in capturing the tendency for a covariate

【 授权许可】

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