Keyphrases
- k means
- experimental evaluation
- improved algorithm
- data clustering
- expectation maximization
- np hard
- learning algorithm
- times faster
- high accuracy
- dynamic programming
- rough k means
- preprocessing
- computationally efficient
- theoretical analysis
- hierarchical clustering
- matching algorithm
- clustering method
- detection algorithm
- data sets
- recognition algorithm
- similarity measure
- search space
- optimization algorithm
- cluster analysis
- feature selection
- segmentation algorithm
- data structure
- computational cost
- lower bound