DEAL: Learning Bayesian Networks in R

Susanne G. BøttcherClaus Dethlefsen

Aalborg University

and

Novo Nordisk A/S

The DEAL Team

Susanne G. Bøttcher (alma@math.auc.dk)Soon to finish Ph.D. Supervisor: Steffen Lauritzen

Claus Dethlefsen (dethlef@math.auc.dk)Recent Ph.D. within state space models. Supervisor: Søren Lundbye-Christensen

Both supported by Novo Nordisk A/SAugust 2001-August 2003

History of DEAL

1997-2002 Susanne’s Ph.D.: Development of theory

2000-2001Preliminary software in S-Plus (Susanne)

Nov/Dec 2001: Prototype of DEAL (Susanne/Claus)

Aug 2002: DEAL is released (Susanne/Claus)

What can DEAL do for us?

Bayesian Networks for Mixed Variables

Conditional Gaussian Distribution

Parameter and Structure Learning

Development

Latent variables, missing observations Interface to eg. Hugin or Grappa Improvement on search strategies Graphical interface Applications in Diabetes research

Download

www.math.auc.dk/novo/deal

Demonstration