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SDB
1995
91views Database» more  SDB 1995»
15 years 10 months ago
Semantics in Spatial Databases
In this paper we discuss two data models for spatial database systems: the linear data model and the topological data model. Both can be used to model a wide range of applications....
Bart Kuijpers, Jan Paredaens, Luc Vandeurzen
PODS
2008
ACM
141views Database» more  PODS 2008»
16 years 7 months ago
On the complexity of deriving schema mappings from database instances
We introduce a theoretical framework for discovering relationships between two database instances over distinct and unknown schemata. This framework is grounded in the context of ...
Pierre Senellart, Georg Gottlob
SDMW
2004
Springer
16 years 4 days ago
Using Delay to Defend Against Database Extraction
For many data providers, the “crown jewels” of their business are the data that they have organized. If someone could copy their entire database, it would be a competitive cata...
Magesh Jayapandian, Brian D. Noble, James W. Micke...
SIGMOD
2010
ACM
176views Database» more  SIGMOD 2010»
15 years 11 months ago
DCUBE: discrimination discovery in databases
Discrimination discovery in databases consists in finding unfair practices against minorities which are hidden in a dataset of historical decisions. The DCUBE system implements t...
Salvatore Ruggieri, Dino Pedreschi, Franco Turini
WER
1998
Springer
15 years 11 months ago
Towards Requirements Engineering of Active Database Systems
Active systems are emerging in many fields, being particularly interesting those like Active Database Management Systems which always provide some kind of reactive capabilities. I...
José Hilario Canós Cerdá, Jav...