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COMAD
2009
14 years 11 months ago
On the Complexity of Multi-Query Optimization in Stream Grids
Stream grids are wide-area grid computing environments that are fed by a set of stream data sources. Such grids are becoming more wide-spread due to the large scale deployment of ...
Saikat Mukherjee, Srinath Srinivasa, Krithi Ramamr...
PVLDB
2008
123views more  PVLDB 2008»
14 years 9 months ago
Dependable cardinality forecasts for XQuery
Though inevitable for effective cost-based query rewriting, the derivation of meaningful cardinality estimates has remained a notoriously hard problem in the context of XQuery. By...
Jens Teubner, Torsten Grust, Sebastian Maneth, She...
SIGMOD
2002
ACM
196views Database» more  SIGMOD 2002»
15 years 10 months ago
Storing and querying ordered XML using a relational database system
XML is quickly becoming the de facto standard for data exchange over the Internet. This is creating a new set of data management requirements involving XML, such as the need to st...
Igor Tatarinov, Stratis Viglas, Kevin S. Beyer, Ja...
SIGMOD
2002
ACM
198views Database» more  SIGMOD 2002»
15 years 10 months ago
Processing complex aggregate queries over data streams
Recent years have witnessed an increasing interest in designing algorithms for querying and analyzing streaming data (i.e., data that is seen only once in a fixed order) with only...
Alin Dobra, Minos N. Garofalakis, Johannes Gehrke,...
SSD
2005
Springer
185views Database» more  SSD 2005»
15 years 3 months ago
Evaluation of a Dynamic Tree Structure for Indexing Query Regions on Streaming Geospatial Data
Most recent research on querying and managing data streams has concentrated on traditional data models where the data come in the form of tuples or XML data. Complex types of strea...
Quinn Hart, Michael Gertz, Jie Zhang