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» A Query System in a Biological Database
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PODS
2004
ACM
131views Database» more  PODS 2004»
15 years 9 months ago
On the Decidability of Containment of Recursive Datalog Queries - Preliminary report
The problem of deciding query containment has important applications in classical query optimization and heterogeneous database systems. Query containment is undecidable for unres...
Piero A. Bonatti
EDBTW
2006
Springer
15 years 1 months ago
Enhanced Regular Path Queries on Semistructured Databases
Regular path queries are the basic navigational component of virtually all the mechanisms for querying semistructured data commonly found in information integration applications, W...
Dan C. Stefanescu, Alex Thomo
87
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DPD
2002
168views more  DPD 2002»
14 years 9 months ago
Evolutionary Algorithms for Allocating Data in Distributed Database Systems
A major cost in executing queries in a distributed database system is the data transfer cost incurred in transferring relations (fragments) accessed by a query from different sites...
Ishfaq Ahmad, Kamalakar Karlapalem, Yu-Kwong Kwok,...
DEXAW
2007
IEEE
141views Database» more  DEXAW 2007»
15 years 3 months ago
SWARD: Semantic Web Abridged Relational Databases
The semantic web represents meta-data as a relation of triples using the RDF data model. We have developed a virtual repository system that enables to process queries to RDF views...
Johan Petrini, Tore Risch
ICDE
2010
IEEE
292views Database» more  ICDE 2010»
15 years 9 months ago
Exploring Power-Performance Tradeoffs in Database Systems
With the total energy consumption of computing systems increasing in a steep rate, much attention has been paid to the design of energy-efficient computing systems and applications...
Zichen Xu, Yi-Cheng Tu, Xiaorui Wang