Keyphrases
- computational complexity
- detection algorithm
- worst case
- matching algorithm
- learning algorithm
- times faster
- preprocessing
- significant improvement
- similarity measure
- cost function
- expectation maximization
- linear programming
- np hard
- optimization algorithm
- segmentation algorithm
- theoretical analysis
- experimental evaluation
- dynamic programming
- search space
- image segmentation
- approximation ratio
- convex hull
- approximation algorithms
- improved algorithm
- theorem proving
- data sets
- ant colony optimization
- computationally efficient
- special case
- k means
- objective function
- genetic algorithm