Keyphrases
- optimization algorithm
- dynamic programming
- cost function
- computationally efficient
- high accuracy
- detection algorithm
- improved algorithm
- recognition algorithm
- preprocessing
- search space
- input data
- np hard
- computational cost
- learning algorithm
- experimental evaluation
- neural network
- parameter tuning
- clustering method
- robust statistical
- matching algorithm
- times faster
- robust statistics
- theoretical analysis
- worst case
- probabilistic model
- significant improvement
- k means
- lower bound
- computational complexity
- data structure
- similarity measure
- face recognition