Keyphrases
- database
- knowledge base
- databases
- database systems
- social network analysis
- database management systems
- relational databases
- background knowledge
- global knowledge
- domain knowledge
- global information
- graph theory
- directed graph
- knowledge management
- database applications
- terrorist networks
- external knowledge
- graph representation
- structured data
- knowledge acquisition
- expert systems
- data model
- knowledge representation
- knowledge discovery
- text mining
- weighted graph
- directed acyclic graph
- graph model
- graph databases
- query language
- natural disasters
- knowledge resources
- world knowledge
- prior knowledge
- random walk
- query graph