GeoPQL: A Geographical Pictorial Query Language That Resolves Ambiguities in Query Interpretation.
Fernando FerriMaurizio RafanelliPublished in: J. Data Semant. (2005)
Keyphrases
- query language
- query evaluation
- database
- visual query language
- recursive queries
- query processing
- data model
- query interface
- semistructured data
- user defined
- response time
- temporal queries
- language constructs
- user queries
- user interaction
- sparql queries
- database queries
- high level
- query execution
- query formulation
- expressive power
- algebraic operations
- object oriented
- query engine
- rdf data
- geographical locations
- query execution plan
- path expressions
- xpath queries
- keyword search
- data management
- data sources
- web databases
- cost model
- regular expressions
- query terms
- retrieval systems
- xml documents
- keywords