Aspects of Modeling Languages for Mathematical Programming

9:00 AM-11:00 AM

*Room: Capitol North*

Modeling languages and the computing environments that support them help simplify and speed the tasks of choosing, using, and understanding models whose prime focus is the solution of constrained optimization problems. This minisymposium will present four perspectives on modeling environments and their interactions with solution algorithms. The speakers will give an overview of algebraic modeling languages and some new directions; discuss modeling systems from the solver's perspectives; tell how modeling systems can help solve applications in parallel; and discuss languages and libraries for constraint-logic programming, for problems that partly involve discrete variables.

**Organizers: David M. Gay**

*Bell Laboratories, Lucent Technologies*

**Alexander Meeraus**

*GAMS Development Corporation*

**9:00-9:25 Developments in Algebraic Modeling Languages for Optimization**

*Robert Fourer*, Northwestern University; and David M. Gay, Organizer

**9:30-9:55 Modeling Systems: The Benefits for Nonlinear Optimization Solvers**

- Arne Stolbjerg Drud, ARKI Consulting and Development, Bagsvaerd, Denmark

**10:00-10:25 Modeling Languages and Condor: Metacomputing for Optimization**

*Michael C. Ferris*and Todd S. Munson, University of Wisconsin, Madison

**10:30-10:55 Constraint Programming Languages and Libraries**

- Ken McAloon, ILOG, Inc., Mountain View, California

*MMD, 12/21/98*