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Stable Matching Problems with Couples
Olivia M. Carducci
Department of Mathematics
Lafayette College
Easton, PA 18042-1781
carducci@lafayette.edu
There several versions of the stable matching problem. The best
known is the stable marriage problem. The goal in the stable marriage problem
is to pair up men and women in such a way that no man and woman who
are not paired with each other prefer each other to their mates. If
there were a man and woman who preferred each other to their mates,
they would be inclined to drop their mates for each other, creating
an unstable situation. The stable marriage problem provides a model
for a centralized procedure that is used to assign graduating
medical students to hospital residency positions.
In this talk we will review the stable marriage problem and an
extension where couples graduating from medical school are permitted to
express their preferences over pairs of residency positions. We will
present a genetic algorithm for enumerating stable matchings in the
stable marriage problem with a
discussion of how the algorithm can be extended to the problem with couples.