Marco Console, Paolo Guagliardo, Leonid Libkin. Approximations and Refinements of Certain Answers via Many-Valued Logics. In Chitta Baral, James P. Delgrande, Frank Wolter, editors, Principles of Knowledge Representation and Reasoning: Proceedings of the Fifteenth International Conference, KR 2016, Cape Town, South Africa, April 25-29, 2016. pages 349-358, AAAI Press, 2016. [doi]
Abstract is missing.