Keyphrases
- k means
- preprocessing
- learning algorithm
- experimental evaluation
- theoretical analysis
- high accuracy
- detection algorithm
- np hard
- improved algorithm
- recognition algorithm
- computational complexity
- experimental study
- dynamic programming
- expectation maximization
- probabilistic model
- optimization algorithm
- times faster
- single pass
- cost function
- significant improvement
- bayesian networks
- similarity measure
- input data
- computational cost
- segmentation algorithm
- feature space
- frequent patterns
- matching algorithm
- objective function
- image segmentation