Keyphrases
- cost function
- k means
- times faster
- clustering method
- worst case
- selection algorithm
- experimental evaluation
- computational cost
- preprocessing
- dynamic programming
- optimal solution
- estimation algorithm
- recognition algorithm
- matching algorithm
- tree structure
- theoretical analysis
- computationally efficient
- expectation maximization
- high accuracy
- np hard
- significant improvement
- optimization algorithm
- denoising
- probabilistic model
- memory requirements
- convergence rate
- data structure
- genetic algorithm
- single pass