Keyphrases
- experimental evaluation
- preprocessing
- cost function
- times faster
- matching algorithm
- ant colony optimization
- optimization algorithm
- expectation maximization
- detection algorithm
- high accuracy
- dynamic programming
- tree structure
- computational complexity
- search space
- natural language
- similarity measure
- computationally efficient
- improved algorithm
- worst case
- clustering method
- theoretical analysis
- simulated annealing
- data sets
- multi objective
- significant improvement
- k means
- optimal solution
- learning algorithm