Stefano Bistarelli, Philippe Codognet, Francesca Rossi. An Abstraction Framework for Soft Constraints and Its Relationship with Constraint Propagation. In Berthe Y. Choueiry, Toby Walsh, editors, Abstraction, Reformulation, and Approximation, 4th International Symposium, SARA 2000, Horseshoe Bay, Texas, USA, July 26-29, 2000, Proceedings. Volume 1864 of Lecture Notes in Computer Science, pages 71-86, Springer, 2000. [doi]
Abstract is missing.