Abstract
In this paper we consider the Maximum Horn Satisfiability problem, which is reduced to the problem of finding a minimum cardinality cut on a directed hypergraph. For the latter problem, we propose different IP formulations, related to three different definitions of hyperpath weight. We investigate the properties of their linear relaxations, showing that they define a hierarchy. The weakest relaxation is shown to be equivalent to the relaxation of a well known IP formulation of Max Horn SAT, and to a max-flow problem on hypergraphs. The tightest relaxation, which is a disjunctive programming problem, is shown to have integer optimum. The intermediate relaxation consists in a set covering problem with a possible exponential number of constraints. This latter relaxation provides an approximation of the convex hull of the integer solutions which, as proven by the experimental results given, is much tighter than the one known in the literature. © 1998 The Mathematical Programming Society, Inc. Published by Elsevier Science B.V.
Similar content being viewed by others
References
G. Gallo, G. Longo, S. Nguyen, S. Pallottino, Directed Hypergraphs and Applications, Discrete Applied Mathematics 42 (1993) 177–201.
D. Pretolani, Satisfiability and Hypergraphs, Ph.D. Thesis, TD-12/93, Dipartimento di Informatica, University of Pisa, Italy, 1993.
G. Gallo, G. Rago, A Hypergraphs Approach to Logical Inference for Datalog Formulae, TR 28/90, Dipartimento di Informatica, Università di Pisa.
G. Rago, Optimization, Hypergraphs and Logical Inference, Ph.D. Thesis, TD-4/94, Dipartimento di Informatica, University of Pisa, Italy, 1993.
B. Jaumard, B. Simeone, On the complexity of the maximum satisfiability problem for Horn formulas, Information Processing Letters 26 (1987/1988) 1–4.
J. Kratochvíl, M. Křivánek, Satisfiability of co-nested formulas, Acta Informatica 30 (1993) 397–403.
M.X. Goemans, D.P. Williamson, New 3/4-approximation algorithms for the maximum satisfiability problem, SIAM Journal on Discrete Mathematics 7 (1994) 656–666.
M.X. Goemans, D.P. Williamson, Improved approximation algorithms for maximum cut and satisfiability problems using semidefinite programming, J. ACM 42 (1995) 1115–1145.
J.M. Bourjolly, P.L. Hammer, W.R. Pulleyblank, B. Simeone, Boolean Combinatorial Bounding of Maximum 2-Satisfiability, RRR 5-92, RUTCOR, Rutgers University, 1992.
J. Cheriyan, W.H. Cunningham, L. Tuncel, Y. Wang, A Linear Programming and Rounding Approach to Max 2-SAT, in: D.S. Johnson, M.A. Trick (Eds.),Cliques, Coloring, and Satisfiability: Second DIMACS Implementation Challenge, DIMACS Series in Discrete Mathematics and Theoretical Computer Science 26, American Mathematical Society (1996).
G. Gallo, R. Cambini, M.G. Scutellà, Flows on hypergraphs, Mathematical Programming 78 (1997) 195–217.
W.F. Dowling, J.H. Gallier, Linear-time algorithms for testing the satisfiability of propositional Horn formulae, Journal of Logic Programming 1 (1984) 267–284.
G. Ausiello, G.F. Italiano, U. Nanni, Dynamic maintenance of directed hypergraphs, Theoretical Computer Science 72 (1990) 97–117.
R.G. Jeroslow, K. Martin, R.L. Rardin, J. Wang, Gainfree Leontief substitution flow problems, Mathematical Programming 57 (3) (1992) 375–414.
R.G. Jeroslow, Logic-based decision support — mixed integer model formulation, Annals of Discrete Mathematics 40 (1989).
R.G. Jeroslow, J. Wang, Dynamic programming, integral polyhedra and Horn clause knowledge base, ORSA Journal on Computing 1 (1989) 7–19.
G.L. Nemhauser, L.A. Wolsey, Integer and Combinatorial Optimization, Wiley, UK, 1988.
J.N. Hooker, V. Vinay, An empirical study of branching rules for satisfiability, presented at the third Symposium on Artificial Intelligence and Mathematics, January 1994.
Author information
Authors and Affiliations
Additional information
Corresponding author.
Rights and permissions
About this article
Cite this article
Gallo, G., Gentile, C., Pretolani, D. et al. Max Horn SAT and the minimum cut problem in directed hypergraphs. Mathematical Programming 80, 213–237 (1998). https://doi.org/10.1007/BF01581727
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF01581727