The expressive power of valued constraints: Hierarchies and collapses
D.A. Cohen‚ P.G. Jeavons and S. Živný
Address
Oxford‚ UK
Institution
Computing Laboratory‚ University of Oxford
Month
April
Number
CS−RR−07−03
Year
2007
D.A. Cohen‚ P.G. Jeavons and S. Živný