Keyphrases
- dynamic programming
- computational complexity
- computational cost
- detection algorithm
- optimal solution
- estimation algorithm
- cost function
- np hard
- learning algorithm
- times faster
- worst case
- experimental evaluation
- preprocessing
- objective function
- convergence rate
- improved algorithm
- expectation maximization
- theoretical analysis
- similarity measure
- matching algorithm
- memory requirements
- single pass
- classification algorithm
- ant colony optimization
- experimental study
- computationally efficient
- significant improvement
- k means
- search space
- face recognition