Descriptive Schema: Semantics-based Query Answering.
Sau Dan LeePatrick YeeThomas Y. LeeDavid Wai-Lok CheungWenjun YuanPublished in: SemWiki (2008)
Keyphrases
- query answering
- data exchange
- schema mappings
- integrity constraints
- database schema
- data integration
- data model
- conjunctive queries
- xml schema
- incomplete information
- data complexity
- databases
- answering queries
- inconsistent databases
- data integration systems
- query rewriting
- xml data
- query relaxation
- query answers
- global schema
- ontology based data access
- expressive power
- database
- semistructured data
- datalog programs
- null values
- xml data exchange
- query processing
- data management
- regular path queries
- data warehouse
- query language
- data mining
- multi agent
- relational databases