Keyphrases
- cost function
- optimization algorithm
- learning algorithm
- improved algorithm
- times faster
- detection algorithm
- selection algorithm
- computational complexity
- matching algorithm
- experimental evaluation
- face recognition
- qr decomposition
- memory requirements
- computationally efficient
- expectation maximization
- computational cost
- dynamic programming
- k means
- similarity measure
- worst case
- particle swarm optimization
- probabilistic model
- support vector machine svm
- significant improvement
- clustering method
- high dimensional
- preprocessing
- recognition algorithm
- optimal solution
- bayesian networks
- estimation algorithm