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Oracle tractability of skew bisubmodular functions.

Huber, A. and Krokhin, A. (2014) 'Oracle tractability of skew bisubmodular functions.', SIAM journal on discrete mathematics., 28 (4). pp. 1828-1837.


In this paper we consider skew bisubmodular functions as recently introduced by the authors and Powell. We construct a convex extension of a skew bisubmodular function which we call Lovász extension in correspondence to the submodular case. We use this extension to show that skew bisubmodular functions given by an oracle can be minimized in polynomial time.

Item Type:Article
Keywords:Submodular functions, Optimization, Computational complexity.
Full text:(AM) Accepted Manuscript
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Publisher statement:© 2014, Society for Industrial and Applied Mathematics
Date accepted:11 August 2014
Date deposited:17 October 2014
Date of first online publication:14 October 2014
Date first made open access:No date available

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