Keyphrases
- communication cost
- peer to peer networks
- computer networks
- query processing
- user queries
- database
- heterogeneous databases
- multi agent
- query routing
- relevance feedback
- response time
- distributed environment
- distributed systems
- query decomposition
- social networks
- heterogeneous networks
- structured peer to peer
- network nodes
- cooperative
- distributed network
- distributed query processing
- wide area network
- indexing techniques
- query execution
- query interface
- complex queries
- query expansion
- retrieval method
- range queries
- distributed information retrieval
- vector space
- peer to peer
- data model
- database systems
- uniform access
- databases