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» An Annotation Management System for Relational Databases
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ICEIS
2009
IEEE
14 years 4 months ago
MIDAS: A Middleware for Information Systems with QoS Concerns
One of the most difficult tasks in the design of information systems is how to control the behaviour of the back-end storage engine, usually a relational database. As the load on t...
Luís Fernando Orleans, Geraldo Zimbrã...
DEXAW
2005
IEEE
142views Database» more  DEXAW 2005»
14 years 3 months ago
Competitive Advantage from Data Mining: Some Lessons Learnt in the Information Systems Field
Data mining (DM) is still a technology having great expectations to enable organizations to take more benefit of their huge databases. There exist some success stories where organ...
Mykola Pechenizkiy, Seppo Puuronen, Alexey Tsymbal
SSD
1999
Springer
106views Database» more  SSD 1999»
14 years 2 months ago
XZ-Ordering: A Space-Filling Curve for Objects with Spatial Extension
There is an increasing need to integrate spatial index structures into commercial database management systems. In geographic information systems (GIS), huge amounts of information ...
Christian Böhm, Gerald Klump, Hans-Peter Krie...
SIGMOD
2006
ACM
109views Database» more  SIGMOD 2006»
14 years 10 months ago
OMCAT: optimal maintenance of continuous queries' answers for trajectories
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
Hui Ding, Goce Trajcevski, Peter Scheuermann
IDEAS
2008
IEEE
109views Database» more  IDEAS 2008»
14 years 4 months ago
EXsum: an XML summarization framework
1 We propose a new framework for the summarization of XML document properties called EXsum (Element-wise XML summarization), which can capture statistical information of all import...
José de Aguiar Moraes Filho, Theo Härd...