Department of Computer Science | Institute of Theoretical Computer Science | CADMO

Theory of Combinatorial Algorithms

Prof. Emo Welzl and Prof. Bernd Gärtner

Mittagsseminar (in cooperation with M. Ghaffari, A. Steger and B. Sudakov)

Mittagsseminar Talk Information

Date and Time: Tuesday, June 12, 2007, 12:15 pm

Duration: This information is not available in the database

Location: CAB G51

Speaker: Bernd Gärtner

Exactly solving linear and quadratic programs in CGAL

Release 3.3 of CGAL, the Computational Geometry Algorithms library, contains a solver for linear and convex quadratic programs. Originally motivated by (and tuned for) applications in low-dimensional geometric optimization, the solver is now also useful as a general-purpose tool for medium-sized problems. The solution is computed in exact rational arithmetic, and it comes with certificates that make it easy to verify the correctness of the output.

After a brief advertisement of CGAL, its philosophy and its functionality, I describe the (simplex-type) algorithm behind the solver. Then I present a simple example of its usage. I conclude with a few benchmarks and a discussion about when (and when not) it might be beneficial for you to use the CGAL solver.

Joint work with Kaspar Fischer, Sven Schönherr, and Frans Wessendorp.


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