Querying Incomplete Information in Semistructured Data.
Yaron KanzaWerner NuttYehoshua SagivPublished in: J. Comput. Syst. Sci. (2002)
Keyphrases
- incomplete information
- semistructured data
- query language
- semistructured databases
- regular path queries
- data model
- regular expressions
- semi structured
- multimedia databases
- structured data
- query answering
- expressive power
- autonomous agents
- missing information
- partial information
- database
- database systems
- object oriented
- recursive queries
- databases
- relational model
- query evaluation
- heterogeneous data
- raw data
- relational algebra
- tree patterns
- rdf data
- conjunctive queries
- graph databases
- data complexity
- matching algorithm
- multiagent systems
- pattern matching
- dynamic environments
- mobile robot
- query processing