Approximate Query Answering for a Heterogeneous XML Document Base.
Federica MandreoliRiccardo MartogliaPaolo TiberioPublished in: WISE (2004)
Keyphrases
- approximate query answering
- xml data
- xml documents
- query optimization
- xml databases
- xml queries
- data model
- multi dimensional
- aggregate queries
- relational databases
- semi structured data
- relational data
- selectivity estimation
- query evaluation
- xpath queries
- query language
- xml schema
- keyword search
- data cube
- tree structure
- relational database systems
- query processing
- data warehouse
- path expressions
- database
- cost model
- sql queries
- database systems