Keyphrases
- times faster
- similarity measure
- experimental evaluation
- learning algorithm
- improved algorithm
- detection algorithm
- dynamic programming
- tree construction
- convergence rate
- distance metric
- classification algorithm
- computational complexity
- preprocessing
- k means
- data sets
- np hard
- objective function
- expectation maximization
- high accuracy
- probabilistic model
- cost function
- computationally efficient
- theoretical analysis
- segmentation algorithm
- optimization algorithm
- ant colony optimization
- tree structure
- search space
- significant improvement
- recognition algorithm
- decision trees