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ICDE
2011
IEEE
224views Database» more  ICDE 2011»
14 years 7 months ago
SmartTrace: Finding similar trajectories in smartphone networks without disclosing the traces
—In this demonstration paper, we present a powerful distributed framework for finding similar trajectories in a smartphone network, without disclosing the traces of participatin...
Costandinos Costa, Christos Laoudias, Demetrios Ze...
123
Voted
TIME
2003
IEEE
15 years 9 months ago
A Novel Approach to Model NOW in Temporal Databases
In bitemporal databases, current facts and transaction states are modelled using a special value to represent the current time (such as a minimum or maximum timestamp or NULL). Pr...
Bela Stantic, John Thornton, Abdul Sattar
ICDE
2008
IEEE
190views Database» more  ICDE 2008»
16 years 5 months ago
Adaptive Segmentation for Scientific Databases
In this paper we explore database segmentation in the context of a column-store DBMS targeted at a scientific database. We present a novel hardware- and scheme-oblivious segmentati...
Milena Ivanova, Martin L. Kersten, Niels Nes
DASFAA
2004
IEEE
169views Database» more  DASFAA 2004»
15 years 8 months ago
Statistic Driven Acceleration of Object-Relational Space-Partitioning Index Structures
Relational index structures, as for instance the Relational Interval Tree or the Linear Quadtree, support efficient processing of queries on top of existing object-relational datab...
Hans-Peter Kriegel, Peter Kunath, Martin Pfeifle, ...
161
Voted
DBSEC
2006
160views Database» more  DBSEC 2006»
15 years 5 months ago
On Finding an Inference-Proof Complete Database for Controlled Query Evaluation
Abstract. Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling t...
Joachim Biskup, Lena Wiese