Keyphrases
- k means
- detection algorithm
- computational cost
- experimental evaluation
- clustering method
- optimization algorithm
- theoretical analysis
- expectation maximization
- high accuracy
- worst case
- hierarchical clustering
- classification algorithm
- cost function
- significant improvement
- preprocessing
- learning algorithm
- data clustering
- improved algorithm
- segmentation algorithm
- np hard
- bit rate
- dynamic programming
- ant colony optimization
- document clustering
- search space
- feature selection
- selection algorithm
- genetic algorithm
- initial cluster centers