Keyphrases
- objective function
- computational complexity
- detection algorithm
- high accuracy
- experimental evaluation
- learning algorithm
- preprocessing
- computational cost
- np hard
- improved algorithm
- selection algorithm
- times faster
- k means
- worst case
- optimal solution
- dynamic programming
- probabilistic model
- search space
- image database
- segmentation algorithm
- lower bound
- retrieval systems
- search algorithm
- convergence rate
- similarity measure