Keyphrases
- feature extraction
- image classification
- key technologies
- preprocessing
- times faster
- optimization algorithm
- learning algorithm
- np hard
- dynamic programming
- cost function
- experimental evaluation
- probabilistic model
- matching algorithm
- expectation maximization
- feature space
- recognition algorithm
- optimization method
- detection algorithm
- theoretical analysis
- principal component analysis
- particle swarm optimization
- linear programming
- similarity measure
- high accuracy
- mobile robot
- k means
- lower bound
- computational complexity