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» On the Complexity of Join Predicates
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ICALP
2005
Springer
14 years 1 months ago
Tight Lower Bounds for Query Processing on Streaming and External Memory Data
We study a clean machine model for external memory and stream processing. We show that the number of scans of the external data induces a strict hierarchy (as long as work space is...
Martin Grohe, Christoph Koch, Nicole Schweikardt
SG
2005
Springer
14 years 1 months ago
Negotiating Gestalt: Artistic Expression by Coalition Formation Between Agents
We present a system using semi-autonomous agents to help artists express ideas. Agents control their representation on a canvas via interactions in agent space. They are given a se...
Kaye Mason, Jörg Denzinger, M. Sheelagh T. Ca...
ISI
2003
Springer
14 years 28 days ago
Active Database Systems for Monitoring and Surveillance
In many intelligence and security tasks it is necessary to monitor data in database in order to detect certain events or changes. Currently, database systems offer triggers to pro...
Antonio Badia
EUROPAR
1999
Springer
14 years 7 hour ago
On Disk Allocation of Intermediate Query Results in Parallel Database Systems
For complex queries in parallel database systems, substantial amounts of data must be redistributed between operators executed on different processing nodes. Frequently, such inter...
Holger Märtens
VLDB
1990
ACM
77views Database» more  VLDB 1990»
13 years 11 months ago
Efficient Main Memory Data Management Using the DBGraph Storage Model
Therequirementsfor amain memorydatastoragemodel are both compactnessand efficient processing for all database operations. The DBGraph storage model, proposed in this paper, achiev...
Philippe Pucheral, Jean-Marc Thévenin, Patr...