Keyphrases
- phase transition
- random constraint satisfaction problems
- constraint satisfaction
- satisfiability problem
- hard problems
- np complete
- information retrieval
- randomly generated
- graph coloring
- combinatorial problems
- cellular automata
- test collection
- image database
- relevance feedback
- image retrieval
- boolean formulae
- retrieval model
- information retrieval systems
- np complete problems
- reinforcement learning