Keyphrases
- random instances
- phase transition
- random constraint satisfaction problems
- randomly generated
- lower bound
- sat instances
- satisfiability problem
- constraint satisfaction problems
- constraint satisfaction
- hard problems
- combinatorial problems
- np complete
- sat problem
- computational complexity
- heuristic search
- pattern databases
- np complete problems
- optimal solution
- sat solvers
- heuristic methods
- search problems
- heuristic search algorithms
- genetic programming
- upper bound
- evolutionary algorithm