Keyphrases
- significant improvement
- improved algorithm
- cost function
- dynamic programming
- optimal solution
- computational complexity
- np hard
- expectation maximization
- high accuracy
- learning algorithm
- recognition algorithm
- convergence rate
- tree structure
- experimental study
- optimization algorithm
- particle swarm optimization
- experimental evaluation
- preprocessing
- search algorithm
- genetic algorithm
- computationally efficient
- segmentation algorithm
- k means
- search space
- matching algorithm
- similarity measure
- selection algorithm
- estimation algorithm