Keyphrases
- query processing
- database
- relevance feedback
- response time
- data structure
- user queries
- range queries
- user defined
- query expansion
- neural network
- aggregate queries
- query formulation
- query evaluation
- efficient processing
- social networks
- keywords
- database queries
- network analysis
- search queries
- information retrieval
- heterogeneous networks
- retrieval process
- retrieval method
- web search engines
- computer networks
- multimedia
- complex networks
- network structure
- information retrieval systems
- query optimization
- user interaction