Keyphrases
- k means
- objective function
- expectation maximization
- high accuracy
- cost function
- search space
- simulated annealing
- theoretical analysis
- preprocessing
- optimal solution
- similarity measure
- improved algorithm
- neural network
- computational complexity
- matching algorithm
- clustering method
- np hard
- dynamic programming
- detection algorithm
- data clustering
- unsupervised clustering
- worst case
- experimental evaluation
- significant improvement
- data structure
- learning algorithm
- genetic algorithm
- self organizing maps
- tree structure
- times faster
- cluster analysis
- clustering algorithm
- spectral clustering
- hierarchical clustering
- convergence rate
- recognition algorithm
- selection algorithm