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» On Querying Ontologies and Databases
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ESWS
2008
Springer
15 years 8 months ago
A Natural Language Query Interface to Structured Information
Accessing structured data such as that encoded in ontologies and knowledge bases can be done using either syntactically complex formal query languages like SPARQL or complicated fo...
Valentin Tablan, Danica Damljanovic, Kalina Bontch...
IV
2002
IEEE
129views Visualization» more  IV 2002»
15 years 11 months ago
Design and Implementation of a Visual Query Language for Large Spatial Databases
In this paper a visual approach to querying in large spatial databases is presented. A diagrammatic technique utilising a data flow metaphor is used to express different kinds of...
Andrew J. Morris, Alia I. Abdelmoty, Douglas Tudho...
DEXA
1998
Springer
124views Database» more  DEXA 1998»
15 years 10 months ago
Indexing Time-Series Databases for Inverse Queries
Abstract. In this paper we examine the problem of indexing time sequences in order to answer inverse queries. An inverse query computes all the time points at which the sequence co...
Alexandros Nanopoulos, Yannis Manolopoulos
HPTS
1993
146views Database» more  HPTS 1993»
15 years 10 months ago
Parallel Query Processing in Shared Disk Database Systems
System developments and research on parallel query processing have concentrated either on "Shared Everything" or "Shared Nothing" architectures so far. While t...
Erhard Rahm
SIGMOD
2008
ACM
65views Database» more  SIGMOD 2008»
16 years 6 months ago
Generating targeted queries for database testing
Tools for generating test queries for databases do not explicitly take into account the actual data in the database. As a consequence, such tools cannot guarantee suitable coverag...
Chaitanya Mishra, Nick Koudas, Calisto Zuzarte