On the Gale-Shapley Algorithm for Stable Matching

Author: Rachel Shorey [ profile | email ]

Abstract

Given a community with the same number of men and women, is it possible to pair them up so that no one will have an affair? In 1962, David Gale and Lloyd Shapley showed that the answer is yes. We must only make a few simple assumptions, and a matching can be created using a relatively simple algorithm. The goal of these pages is to present the Gale-Shapley algorithm for stable matching and to introduce some extensions of the algorithm such as its use in real world and modifications to handle non-bipartite sets.

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