Abstract
A Galois connection between clones and relational clones on a fixed finite domain is one of the cornerstones of the so-called algebraic approach to the computational complexity of non-uniform Constraint Satisfaction Problems (CSPs). Cohen et al. established a Galois connection between finitely-generated weighted clones and finitely-generated weighted relational clones [SICOMP’13], and asked whether this connection holds in general. We answer this question in the affirmative for weighted (relational) clones with real weights and show that the complexity of the corresponding Valued CSPs is preserved.
The authors were supported by a Royal Society Research Grant. Stanislav Živný was supported by a Royal Society University Research Fellowship.
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References
Barto, L., Kozik, M.: Constraint Satisfaction Problems Solvable by Local Consistency Methods. Journal of the ACM 61(1), article No. 3
Barto, L., Kozik, M., Niven, T.: The CSP dichotomy holds for digraphs with no sources and no sinks. SIAM Journal on Computing 38(5), 1782–1802 (2009)
Boyd, S.P., Vandenberghe, L.: Convex Optimization, CUP (2004)
Bulatov, A.: A graph of a relational structure and constraint satisfaction problems. In: Proc. LICS 2004. IEEE Computer Society, pp. 448–457 (2004)
Bulatov, A.: A dichotomy theorem for constraint satisfaction problems on a 3-element set. Journal of the ACM 53(1), 66–120 (2006)
Bulatov, A., Krokhin, A., Jeavons, P.: Classifying the Complexity of Constraints using Finite Algebras. SIAM Journal on Computing 34(3), 720–742 (2005)
Bulatov, A.A.: Complexity of conservative constraint satisfaction problems. ACM Transactions on Computational Logic 12(4), article 24
Bulatov, A.A., Krokhin, A.A., Jeavons, P.G.: The complexity of maximal constraint languages. In: Proc. STOC 2001, pp. 667–674 (2001)
Cohen, D.A., Cooper, M.C., Creed, P., Jeavons, P., Živný, S.: An algebraic theory of complexity for discrete optimisation. SIAM Journal on Computing 42(5), 915–1939 (2013)
Cohen, D.A., Cooper, M.C., Jeavons, P.G., Krokhin, A.A.: The Complexity of Soft Constraint Satisfaction. Artificial Intelligence 170(11), 983–1016 (2006)
Feder, T., Vardi, M.Y.: The Computational Structure of Monotone Monadic SNP and Constraint Satisfaction: A Study through Datalog and Group Theory. SIAM Journal on Computing 28(1), 57–104 (1998)
Hell, P., Nešetřil, J.: On the Complexity of \({H}\)-coloring. Journal of Combinatorial Theory, Series B 48(1), 92–110 (1990)
Hell, P., Nešetřil, J.: Colouring, constraint satisfaction, and complexity. Computer Science Review 2(3), 143–163 (2008)
Jeavons, P., Krokhin, A., Živný, S.: The complexity of valued constraint satisfaction. Bulletin of the European Association for Theoretical Computer Science (EATCS) 113, 21–55 (2014)
Jeavons, P.G., Cohen, D.A., Gyssens, M.: Closure Properties of Constraints. Journal of the ACM 44(4), 527–548 (1997)
Kolmogorov, V., Thapper, J., Živný, S.: The power of linear programming for general-valued CSPs. SIAM Journal on Computing 44(1), 1–36 (2015)
Kolmogorov, V., Živný, S.: The complexity of conservative valued CSPs. Journal of the ACM 60(2), article No. 10
Kozik, M., Ochremiak, J.: Algebraic properties of valued constraintsatisfaction problem. In: Proc. ICALP 2015. Springer (2015)
Schaefer, T.J.: The complexity of satisfiability problems. In: Proc. STOC 1978, pp. 216–226. ACM (1978)
Thapper, J.: Aspects of a constraint optimisation problem, Ph.D. thesis, Department of Computer Science and Information Science, Linköping University (2010)
Thapper, J., Živný, S.: The power of linear programming for valued CSPs. In: Proc. FOCS 2012, pp. 669–678. IEEE (2012)
Thapper, J., Živný, S.: The complexity of finite-valued CSPs. In: Proc. STOC 2013, pp. 695–704. ACM (2013)
Uppman, H.: The complexity of three-element min-sol and conservative min-cost-hom. In: Fomin, F.V., Freivalds, R., Kwiatkowska, M., Peleg, D. (eds.) ICALP 2013, Part I. LNCS, vol. 7965, pp. 804–815. Springer, Heidelberg (2013)
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Fulla, P., Živný, S. (2015). A Galois Connection for Valued Constraint Languages of Infinite Size. In: Halldórsson, M., Iwama, K., Kobayashi, N., Speckmann, B. (eds) Automata, Languages, and Programming. ICALP 2015. Lecture Notes in Computer Science(), vol 9134. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-47672-7_42
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DOI: https://doi.org/10.1007/978-3-662-47672-7_42
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