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TIME
2000
IEEE
13 years 8 months ago
Towards a Theory of Movie Database Queries
We present a data model for movies and movie databases. A movie is considered to be a 2-dimensional semialgebraic figure that can change in time. We give a number of computabilit...
Bart Kuijpers, Jan Paredaens, Dirk Van Gucht
UML
2001
Springer
13 years 9 months ago
On Querying UML Data Models with OCL
UML is the de-facto standard language for Object-Oriented analysis and design of information systems. Persistent storage and extraction of data in such systems is supported by dat...
David H. Akehurst, Behzad Bordbar
SEMWEB
2001
Springer
13 years 9 months ago
An RDF Framework for Resource Discovery
Resource discovery is a problem common to almost all distributed systems. Instead of resulting in a one or a small number of discovery mechanisms, completely different and incompa...
Franklin Reynolds
DBPL
2001
Springer
167views Database» more  DBPL 2001»
13 years 9 months ago
A Temporal Query Language for OLAP: Implementation and a Case Study
Commercial OLAP systems usually treat OLAP dimensions as static entities. In practice, dimension updates are often necessary in order to adapt the multidimensional database to chan...
Alejandro A. Vaisman, Alberto O. Mendelzon
SSD
2009
Springer
128views Database» more  SSD 2009»
13 years 9 months ago
TOQL: Temporal Ontology Querying Language
We introduce TOQL, a query language for querying time information in ontologies. TOQL is a high level query language that handles ontologies almost like relational databases. Queri...
Evdoxios Baratis, Euripides G. M. Petrakis, Sotiri...
COMPSAC
2002
IEEE
13 years 9 months ago
Understanding SQL through Iconic Interfaces
Visual Query Languages represent an evolution, in terms of understandability and adaptability, with respect to traditional textual languages. We present an iconic query system tha...
Lerina Aversano, Gerardo Canfora, Andrea De Lucia,...
SAC
2003
ACM
13 years 9 months ago
Design and Implementation of a Graphical Interface to Xquery
As the use of XML is rapidly growing, a growing number of users without programming skills will need to query XML data. Although designed to be easily understood by humans, XQuery...
Enrico Augurusa, Daniele Braga, Alessandro Campi, ...
JCDL
2003
ACM
77views Education» more  JCDL 2003»
13 years 9 months ago
On Querying Geospatial and Georeferenced Metadata Resources in G-Portal
G-Portal is a web portal system providing a range of digital library services to access geospatial and georeferenced resources on the Web. Among them are the storage and query sub...
Zehua Liu, Ee-Peng Lim, Wee Keong Ng, Dion Hoe-Lia...
WISE
2003
Springer
13 years 9 months ago
A Graphical Environment to Query XML Data with XQuery
XQuery, the standard query language for XML, is increasingly popular among computer scientists with a SQL background, since queries in XQuery and SQL require comparable skills to ...
Daniele Braga, Alessandro Campi
DASFAA
2003
IEEE
142views Database» more  DASFAA 2003»
13 years 9 months ago
GLASS: A Graphical Query Language for Semi-Structured Data
The increase in the use of XML (eXtensible Markup Language) makes the semistructured data more and more important on the Web. To exploit the full power of XML documents, a query l...
Wei Ni, Tok Wang Ling