Keyphrases
- improved algorithm
- detection algorithm
- learning algorithm
- cost function
- search space
- objective function
- experimental evaluation
- worst case
- optimization algorithm
- preprocessing
- times faster
- computational complexity
- significant improvement
- particle swarm optimization
- computationally efficient
- classification algorithm
- matching algorithm
- recognition algorithm
- convex hull
- input data
- null space
- distance matrix
- segmentation algorithm
- theoretical analysis
- linear programming
- probabilistic model
- computational cost
- k means
- feature space
- face recognition