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SIGMOD
2008
ACM
188views Database» more  SIGMOD 2008»
14 years 11 months ago
HERMES: aggregative LBS via a trajectory DB engine
We present HERMES, a prototype system based on a powerful query language for trajectory databases, which enables the support of aggregative Location-Based Services (LBS). The key ...
Nikos Pelekis, Elias Frentzos, Nikos Giatrakos, Ya...
FQAS
2004
Springer
103views Database» more  FQAS 2004»
14 years 4 months ago
A Unifying Framework for Flexible Information Access in Taxonomy-Based Sources
A taxonomy-based source consists of a taxonomy and a database storing objects that are indexed in terms of the taxonomy. For this kind of sources, we describe a flexible interacti...
Yannis Tzitzikas, Carlo Meghini, Nicolas Spyratos
VLDB
1989
ACM
104views Database» more  VLDB 1989»
14 years 2 months ago
Gral: An Extensible Relational Database System for Geometric Applications
: We describe the architecture of a relational databasesystem that is extensible by user-defined data types and operations, including relation operations. The central concept is to...
Ralf Hartmut Güting
CIDR
2007
128views Algorithms» more  CIDR 2007»
14 years 7 days ago
Cayuga: A General Purpose Event Monitoring System
We describe the design and implementation of the Cornell Cayuga System for scalable event processing. We present a query language based on Cayuga Algebra for naturally expressing ...
Alan J. Demers, Johannes Gehrke, Biswanath Panda, ...
ALENEX
2008
192views Algorithms» more  ALENEX 2008»
13 years 12 months ago
Compressed Inverted Indexes for In-Memory Search Engines
We present the algorithmic core of a full text data base that allows fast Boolean queries, phrase queries, and document reporting using less space than the input text. The system ...
Frederik Transier, Peter Sanders