Arizona State University College of Liberal Arts and Sciences
   
 
 

Computational and Applied Math Proseminar

Tuesday, November 22, 2005, 12:15 p.m. GWC 216

Jodi Mead

Dept. Math., Boise State University

Data Assimilation, Inversion and Statistical Hypothesis Testing

Abstract What do these three areas have in common? Data assimilation is typically used to improve model predictions with observed data. Inversion is commonly used to infer the parameters in these models given the observed data. Data assimilation and inversion are virtually equivalent, they just tend to emphasize different aspects, i.e. data assimilation emphasizes improving model prediction and inversion emphasizes parameter estimation. However, data assimilation is becoming more commonly used for parameter estimation. To bring these three concepts together I will show how data assimilation or inverting for parameter estimates can be viewed as statistical hypothesis testing. This viewpoint allows us to use some new ideas to improve parameter estimates.

For further information please contact: mittelmann@asu.edu