Query rewriting for lightweight information integration.
Rodolfo StecherClaudia NiederéeWolfgang NejdlPublished in: ICDIM (2008)
Keyphrases
- lightweight
- information integration
- query rewriting
- data sources
- query answering
- data integration
- conjunctive queries
- query optimization
- semi structured
- spatial databases
- xml queries
- wireless sensor networks
- xpath queries
- global schema
- data sets
- query execution
- text mining
- heterogeneous data
- database systems
- incomplete information
- integrity constraints
- topic maps
- np complete
- data warehouse
- relational databases