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ICDT
1999
ACM
97views Database» more  ICDT 1999»
15 years 11 months ago
Optimizing Large Join Queries in Mediation Systems
In data integration systems, queries posed to a mediator need to be translated into a sequence of queries to the underlying data sources. In a heterogeneous environment, with sour...
Ramana Yerneni, Chen Li, Jeffrey D. Ullman, Hector...
IDEAS
2005
IEEE
113views Database» more  IDEAS 2005»
16 years 8 days ago
On the Intersection of XPath Expressions
— XPath is a common language for selecting nodes in an XML document. XPath uses so called path expressions which describe a navigation path through semistructured data. In the la...
Beda Christoph Hammerschmidt, Martin Kempa, Volker...
AUSDM
2006
Springer
93views Data Mining» more  AUSDM 2006»
15 years 10 months ago
Visualisation and Exploration of Scientific Data Using Graphs
Abstract. We present a prototype application for graph-based data exploration and mining, with particular emphasis on scientific data. The application has a Flash-based graphical i...
Ben Raymond, Lee Belbin
DEXAW
2004
IEEE
88views Database» more  DEXAW 2004»
15 years 10 months ago
A Possible World Approach to Uncertain Relational Data
Data exchange between embedded systems and other small or large computing devices increases. Since data in different data sources may refer to the same real world objects, data ca...
Ander de Keijzer, Maurice van Keulen
DEXA
2006
Springer
125views Database» more  DEXA 2006»
15 years 10 months ago
Andromeda : Building e-Science Data Integration Tools
: This paper ANDROMEDA, an astronomical data mediation system that enables transparent access to astronomical data servers. Transparent access is achieved by a global view that exp...
Víctor Cuevas-Vicenttín, José...