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OWLED
2007
15 years 8 months ago
Adding Integrity Constraints to OWL
Schema statements in OWL are interpreted quite differently from analogous statements in relational databases. If these statements are meant to be interpreted as integrity constrai...
Boris Motik, Ian Horrocks, Ulrike Sattler
DBPL
2001
Springer
133views Database» more  DBPL 2001»
15 years 11 months ago
A Theory of Spatio-Temporal Database Queries
Abstract. We address a fundamental question concerning spatio-temporal database systems: “What are exactly spatio-temporal queries?” We define spatio-temporal queries to be co...
Floris Geerts, Sofie Haesevoets, Bart Kuijpers
DEXA
1997
Springer
92views Database» more  DEXA 1997»
15 years 10 months ago
A Query Language and Interface for Integrated Media and Alphanumeric Database Systems
Abstract. In this paper, we consider a multidatabase system which consists of media databases and traditional alphanumeric databases. The semantic relationships which may exist amo...
Jia-Ling Koh, Arbee L. P. Chen, Paul C. M. Chang, ...
PARLE
1992
15 years 10 months ago
Performance Evaluation of Parallel Transaction Processing in Shared Nothing Database Systems
Complex and data-intensive database queries mandate parallel processing strategies to achieve sufficiently short response times. In praxis, parallel database processing is mostly b...
Robert Marek, Erhard Rahm
DEDUCTIVE
1993
103views Database» more  DEDUCTIVE 1993»
15 years 7 months ago
Q-Data: Using Deductive Database Technology to Improve Data Quality
This chapter discusses an extended deductive database prototype system, Q-Data, developed by Bellcore to improve data quality through data validation and cleanup. The key technolo...
Amit P. Sheth, Christopher Wood, Vipul Kashyap