negative binomial distribution; mixture; Poisson distribution; conjugacy; gamma distribution
Issue Date
2003-05
Publisher
한국산업경영시스템학회
Citation
한국산업경영시스템학회 학술대회, page. 275-278
Abstract
Used as a mixing distribution for an unknown Poisson parameter,
the gamma distribution leads to the negative binomial distribution.
The hyperparameters of the gamma distribution have their own meanings
according to what the Poisson parameter represents. Different sources
in the randomness of the Poisson parameter give different interpretations
of the negative binomial distribution.