Keyphrases
- optimization problems
- evolutionary algorithm
- cost function
- special case
- metaheuristic
- optimization methods
- objective function
- combinatorial optimization problems
- approximation algorithms
- hierarchical organization
- nonlinear programming
- higher level
- optimization criteria
- traveling salesman problem
- computational complexity
- data sets
- lower level
- np hardness
- polynomial size
- hierarchical structure
- ant colony optimization
- worst case
- multi objective
- data structure
- reinforcement learning
- information systems
- search engine
- machine learning
- databases