We address methods for selecting the branching variable in an enumerative algorithm for Mixed-Integer Programs, providing heuristics to speed-up strong branching computation and to reduce the set of variables candidate for branching. Extensive computational results on instances from the literature show that, even in our proof-of-concept implementation, a certain speedup can be achieved with respect to state-of-the-art branching strategies.
M. Fischetti, M. Monaci (2012). Branching on nonchimerical fractionalities. OPERATIONS RESEARCH LETTERS, 40, 159-164 [10.1016/j.orl.2012.01.008].
Branching on nonchimerical fractionalities
MONACI, MICHELE
2012
Abstract
We address methods for selecting the branching variable in an enumerative algorithm for Mixed-Integer Programs, providing heuristics to speed-up strong branching computation and to reduce the set of variables candidate for branching. Extensive computational results on instances from the literature show that, even in our proof-of-concept implementation, a certain speedup can be achieved with respect to state-of-the-art branching strategies.File in questo prodotto:
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