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VLDB
2000
ACM
248views Database» more  VLDB 2000»
13 years 11 months ago
Multi-Dimensional Database Allocation for Parallel Data Warehouses
Data allocation is a key performance factor for parallel database systems (PDBS). This holds especially for data warehousing environments where huge amounts of data and complex an...
Thomas Stöhr, Holger Märtens, Erhard Rah...
ICASSP
2009
IEEE
13 years 5 months ago
On acoustic surveillance of hazardous situations
The present study presents a practical methodology for automatic space monitoring based solely on the perceived acoustic information. We consider the case where atypical situation...
Stavros Ntalampiras, Ilyas Potamitis, Nikos Fakota...
DBPL
2005
Springer
143views Database» more  DBPL 2005»
14 years 1 months ago
Inconsistency Tolerance in P2P Data Integration: An Epistemic Logic Approach
We study peer-to-peer ðP2PÞ data integration, where each peer models an autonomous system that exports data in terms of its own schema, and data interoperation is achieved by me...
Diego Calvanese, Giuseppe De Giacomo, Domenico Lem...
ICDE
2005
IEEE
105views Database» more  ICDE 2005»
14 years 9 months ago
Representing and Querying Data Transformations
Modern information systems often store data that has been transformed and integrated from a variety of sources. This integration may obscure the original source semantics of data ...
John Mylopoulos, Renée J. Miller, Yannis Ve...
PODS
2006
ACM
104views Database» more  PODS 2006»
14 years 7 months ago
Tractable database design through bounded treewidth
Given that most elementary problems in database design are NP-hard, the currently used database design algorithms produce suboptimal results. For example, the current 3NF decompos...
Georg Gottlob, Reinhard Pichler, Fang Wei