 In 1993, Fournier further
abstracted the writing of statistical models by creating ADMB, a special
"template" language to simplify model specification by
creating the tools to
transform models written using the templates into the AUTODIF Library
applications.ADMB produces code to manage the exchange of model
parameters between the model and the function minimizer,
automatically computes the Hessian matrix and inverts it to provide
an estimate the covariance of the estimated parameters.ADMB thus
completes the liberation of the model developer from all of the tedious
overhead of managing non-linear optimization, thereby freeing him or her to
focus on the more interesting aspects of the statistical model.