Keyphrases
- computational complexity
- optimization algorithm
- learning algorithm
- optimal solution
- np hard
- computational cost
- high accuracy
- improved algorithm
- k means
- times faster
- expectation maximization
- worst case
- recognition algorithm
- convergence rate
- matching algorithm
- tree structure
- neural network
- preprocessing
- objective function
- similarity measure
- segmentation algorithm
- classification algorithm
- knn
- probabilistic model
- estimation algorithm