Keyphrases
- learning algorithm
- computational complexity
- cost function
- high accuracy
- significant improvement
- selection algorithm
- experimental evaluation
- optimization algorithm
- detection algorithm
- matching algorithm
- preprocessing
- k means
- dynamic programming
- computationally efficient
- theoretical analysis
- optimal solution
- improved algorithm
- estimation algorithm
- recognition algorithm
- genetic algorithm
- times faster
- segmentation algorithm
- probabilistic model
- lower bound
- face recognition
- feature selection