Keyphrases
- k means
- expectation maximization
- worst case
- preprocessing
- optimization algorithm
- computational cost
- data clustering
- clustering method
- detection algorithm
- lower bound
- significant improvement
- np hard
- segmentation algorithm
- experimental evaluation
- dynamic programming
- search space
- improved algorithm
- objective function
- similarity measure
- neural network
- iterative optimization
- optimal solution
- face recognition