Foundations of Artificial Intelligence, Vol. 2, Suppl. (C), 2006
Chapter 9 Soft Constraints
Many real-life combinatorial problems can be naturally modelled (see Chapters 2 and 11 and [34, 2]) and often efficiently solved using constraint techniques. It is essentially a matter of identifying the decision variables of the problem and how they are related through constraints. In a scheduling problem for example, there may be as many variables as tasks, each specifying its starting time, and constraints can model the temporal relations among such variables, such as “the beginning of task 2 must occur after the end of task 1”. Similar models have ...