Hungarian algorithm
Polynomial-time algorithm for the assignment problem / From Wikipedia, the free encyclopedia
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The Hungarian method is a combinatorial optimization algorithm that solves the assignment problem in polynomial time and which anticipated later primal–dual methods. It was developed and published in 1955 by Harold Kuhn, who gave it the name "Hungarian method" because the algorithm was largely based on the earlier works of two Hungarian mathematicians, Dénes Kőnig and Jenő Egerváry.[1][2] However, in 2006 it was discovered that Carl Gustav Jacobi had solved the assignment problem in the 19th century, and the solution had been published posthumously in 1890 in Latin.[3]
James Munkres reviewed the algorithm in 1957 and observed that it is (strongly) polynomial.[4] Since then the algorithm has been known also as the Kuhn–Munkres algorithm or Munkres assignment algorithm. The time complexity of the original algorithm was , however Edmonds and Karp, and independently Tomizawa, noticed that it can be modified to achieve an
running time.[5][6] Ford and Fulkerson extended the method to general maximum flow problems in form of the Ford–Fulkerson algorithm.