Keyphrases
- experimental evaluation
- optimal solution
- times faster
- computational complexity
- matching algorithm
- objective function
- high accuracy
- graph based algorithm
- improved algorithm
- detection algorithm
- theoretical analysis
- dynamic programming
- computational cost
- k means
- worst case
- np hard
- preprocessing
- learning algorithm
- graph model
- data structure
- recognition algorithm
- search space
- classification algorithm
- frequent patterns
- ant colony optimization
- experimental study
- clustering method
- computationally efficient
- linear programming
- simulated annealing