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	Bayesiansk Poissonregression	Bayesiansk generaliserad linjär modell
Ämnesområde	Statistik	Statistik
Familj	Regression model	Regression model
Ursprungsår	1989 (GLM foundation); Bayesian treatment formalized in 1990s–2000s	1989 (GLM); 1995 (Bayesian BDA)
Upphovsperson	Gelman et al. (BDA); classical Poisson GLM from McCullagh & Nelder (1989)	McCullagh & Nelder (GLM framework); Bayesian treatment formalized by Gelman et al.
Typ	Bayesian generalized linear model for count data	Bayesian regression model
Ursprungskälla	Gelman, A., Carlin, J. B., Stern, H. S., Dunson, D. B., Vehtari, A., & Rubin, D. B. (2013). Bayesian Data Analysis (3rd ed.). CRC Press. ISBN: 978-1439840955	Gelman, A., Carlin, J. B., Stern, H. S., Dunson, D. B., Vehtari, A., & Rubin, D. B. (2013). Bayesian Data Analysis (3rd ed.). CRC Press. ISBN: 978-1439840955
Alias	Bayesian log-linear count model, Bayesian GLM Poisson, Poisson regression with priors, Bayesian count regression	Bayesian GLM, Bayesian GLIM, Bayesian generalized linear regression, Bayes GLM
Närliggande	6	6
Sammanfattning	Bayesian Poisson regression models non-negative integer count outcomes using a Poisson likelihood with a log link, placing prior distributions on the regression coefficients. Posterior inference — combining prior beliefs with the data likelihood — produces full probability distributions over the coefficients rather than single-point estimates, enabling coherent uncertainty quantification and incorporation of domain knowledge.	A Bayesian Generalized Linear Model (Bayesian GLM) extends the classical GLM framework by placing prior distributions on the regression coefficients and updating them with data via Bayes' theorem. This yields a full posterior distribution over parameters rather than single point estimates, enabling richer uncertainty quantification and principled incorporation of prior knowledge for any exponential-family outcome.