Keyphrases
- undirected graph
- spanning tree
- vertex set
- graph structure
- undirected graphical models
- directed acyclic graph
- directed graph
- tree structure
- approximation algorithms
- complex networks
- connected components
- disjoint paths
- space partitioning
- multicommodity flow
- conditional random fields
- hierarchical tree
- minimum cost
- strongly connected
- data structure
- positive integer
- hidden markov models