Keyphrases
- lower bound
- upper bound
- collaborative filtering
- min sum
- branch and bound
- structured data
- objective function
- path length
- graph structure
- graph theory
- random walk
- np hard
- graph model
- optimal solution
- graph based algorithm
- directed graph
- graph mining
- graph partitioning
- graph theoretic
- connected components
- worst case
- search space
- small world
- optimal cost
- learning algorithm