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A note on the Minimum Norm Point algorithm (1409.8135v2)

Published 29 Sep 2014 in cs.DS

Abstract: We present a provably more efficient implementation of the Minimum Norm Point Algorithm conceived by Fujishige than the one presented in \cite{FUJI06}. The algorithm solves the minimization problem for a class of functions known as submodular. Many important functions, such as minimum cut in the graph, have the so called submodular property \cite{FUJI82}. It is known that the problem can also be efficiently solved in strongly polynomial time \cite{IWAT01}, however known theoretical bounds are far from being practical. We present an improved implementation of the algorithm, for which unfortunately no worst case bounds are know, but which performs very well in practice. With the modifications presented, the algorithm performs an order of magnitude faster for certain submodular functions.

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