Keyphrases
- np complete
- np hard
- randomly generated
- computational complexity
- constraint satisfaction problems
- satisfiability problem
- grid computing
- phase transition
- polynomially solvable
- pspace complete
- bounded treewidth
- polynomial time complexity
- grid points
- computational grids
- conjunctive queries
- database
- grid middleware
- grid structure
- np complete problems
- data complexity
- information retrieval