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VLDB
1994
ACM
114views Database» more  VLDB 1994»
15 years 10 months ago
Including Group-By in Query Optimization
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
Surajit Chaudhuri, Kyuseok Shim
IAT
2007
IEEE
15 years 10 months ago
High-Speed Network Traffic Acquisition for Agent Systems
This paper presents a design of high-speed network traffic acquisition subsystem suitable for agent-based intrusion detection systems. To match the performance requirements and to...
Pavel Celeda, Vojtech Krmicek, Martin Rehák...
EDBTW
2006
Springer
15 years 10 months ago
Data Stream Sharing
Abstract. Recent research efforts in the fields of data stream processing and data stream management systems (DSMSs) show the increasing importance of processing data streams, e. g...
Richard Kuntschke, Alfons Kemper
EDBTW
2006
Springer
15 years 10 months ago
Window Specification over Data Streams
Several query languages have been proposed for managing data streams in modern monitoring applications. Continuous queries expressed in these languages usually employ windowing con...
Kostas Patroumpas, Timos K. Sellis
EDBT
2009
ACM
131views Database» more  EDBT 2009»
15 years 9 months ago
Sample synopses for approximate answering of group-by queries
With the amount of data in current data warehouse databases growing steadily, random sampling is continuously gaining in importance. In particular, interactive analyses of large d...
Philipp Rösch, Wolfgang Lehner