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» Query optimizer for spatial join operations
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DEXA
2000
Springer
99views Database» more  DEXA 2000»
14 years 5 days ago
The BORD Benchmark for Object-Relational Databases
This paper describes a new benchmark for object-relational DBMSs, the Benchmark for Object-Relational Databases (BORD). BORD has been developed to evaluate system performance pecul...
Sang Ho Lee, Sung Jin Kim, Won Kim
STDBM
2004
Springer
143views Database» more  STDBM 2004»
14 years 1 months ago
Indexing Query Regions for Streaming Geospatial Data
This paper introduces the Dynamic Cascade Tree (DCT), a structure designed to index query regions on multi-dimensional data streams. The DCT is designed for a stream management sy...
Quinn Hart, Michael Gertz
ICDE
2003
IEEE
148views Database» more  ICDE 2003»
14 years 9 months ago
Efficient Computation of Subqueries in Complex OLAP
Expressing complex OLAP queries using group-by, aggregation, and joins can be extremely difficult. As a result of this, many alternate ways of expressing such queries have been de...
Michael H. Böhlen, Michael O. Akinde
SIGMOD
2009
ACM
202views Database» more  SIGMOD 2009»
14 years 8 months ago
ZStream: a cost-based query processor for adaptively detecting composite events
Composite (or Complex) event processing (CEP) systems search sequences of incoming events for occurrences of userspecified event patterns. Recently, they have gained more attentio...
Yuan Mei, Samuel Madden
EDBTW
2006
Springer
13 years 11 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