Keyphrases
- learning algorithm
- cost function
- matching algorithm
- optimal solution
- preprocessing
- dynamic programming
- adjacency graph
- graph based algorithm
- times faster
- graph model
- shortest path problem
- recognition algorithm
- tree structure
- shortest path
- detection algorithm
- expectation maximization
- simulated annealing
- high accuracy
- worst case
- maximum flow
- experimental evaluation
- np hard
- breadth first search
- objective function
- minimum spanning tree
- particle swarm optimization
- graph structure
- graph theory
- probabilistic model
- computational cost
- significant improvement
- k means
- similarity measure