A Semantics for a Query Language over Sensors, Streams and Relations.
Christian Y. A. BrenninkmeijerIxent GalpinAlvaro A. A. FernandesNorman W. PatonPublished in: BNCOD (2008)
Keyphrases
- query language
- relational calculus
- relational data model
- relational operators
- relational algebra
- stream processing
- data model
- language constructs
- real time
- algebraic operations
- expressive power
- aggregate functions
- query evaluation
- sensor networks
- data fusion
- conceptual model
- object oriented
- sparql queries
- sensor data
- data streams
- intended meaning
- binary relations
- conceptual graphs
- multi sensor
- relational structures
- database
- database query languages
- regular expressions
- formal semantics
- lexical semantics
- algebraic operators
- null values
- temporal relations
- sensor readings
- logic programming
- semantic information
- conjunctive queries
- complex objects
- sensor data streams
- relational databases
- relational algebra expressions
- ontological concepts
- sliding window
- algebraic structure
- sensor technology
- semantic relations
- spatial relations
- logical structure
- rdf graphs
- transactional data