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DASFAA
2004
IEEE
158views Database» more  DASFAA 2004»
14 years 1 months ago
A Cost Model for Spatial Intersection Queries on RI-Trees
Abstract. The efficient management of interval sequences represents a core requirement for many temporal and spatial database applications. With the Relational Interval Tree (RI-tr...
Hans-Peter Kriegel, Martin Pfeifle, Marco Pöt...
ICDE
2001
IEEE
121views Database» more  ICDE 2001»
14 years 11 months ago
Integrating Semi-Join-Reducers into State of the Art Query Processors
Semi-join reducers were introduced in the late seventies as a means to reduce the communication costs of distributed database systems. Subsequent work in the eighties showed, howe...
Konrad Stocker, Donald Kossmann, Reinhard Braumand...
DPD
2008
136views more  DPD 2008»
13 years 9 months ago
A cache invalidation scheme for continuous partial match queries in mobile computing environments
The continuous partial match query is a partial match query whose result remains consistently in the client's memory. Conventional cache invalidation methods for mobile client...
Yon Dohn Chung
SIGMOD
2011
ACM
221views Database» more  SIGMOD 2011»
13 years 14 days ago
Scalable query rewriting: a graph-based approach
In this paper we consider the problem of answering queries using views, which is important for data integration, query optimization, and data warehouses. We consider its simplest ...
George Konstantinidis, José Luis Ambite
EDBT
2009
ACM
118views Database» more  EDBT 2009»
14 years 4 months ago
Flexible query answering on graph-modeled data
The largeness and the heterogeneity of most graph-modeled datasets in several database application areas make the query process a real challenge because of the lack of a complete ...
Federica Mandreoli, Riccardo Martoglia, Giorgio Vi...