A Kalman Filter for a Poisson Series with Covariates and Laplace Approximation Integration
Abstract
A hierarchical model for a Poisson time series is introduced. The model allows the mean or rate of the Poisson variables to vary slowly in time; it is modeled as the exponential of an AR/1 process. In addition the rate is influenced by a covariate. The Laplace method is used to recursively update some model parameter estimates. Frankly heuristic methods are explored to estimate other of the underlying parameters. The methodology is checked against simulated data with encouraging results.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1991
- Accession Number
- ADA242960
Entities
People
- Donald P. Gaver Jr.
- Patricia A. Jacobs
Organizations
- Naval Postgraduate School