Keyphrases
- experimental evaluation
- times faster
- learning algorithm
- selection algorithm
- search space
- theoretical analysis
- optimal solution
- objective function
- improved algorithm
- k means
- optimization algorithm
- similarity measure
- data sets
- high accuracy
- memory requirements
- probabilistic model
- computationally efficient
- np hard
- expectation maximization
- worst case
- dynamic programming
- matching algorithm
- preprocessing
- recognition algorithm
- face recognition
- image segmentation
- estimation algorithm