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» Plan Databases: Model and Algebra
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ICDT
2009
ACM
166views Database» more  ICDT 2009»
14 years 6 months ago
A compositional framework for complex queries over uncertain data
The ability to flexibly compose confidence computation with the operations of relational algebra is an important feature of probabilistic database query languages. Computing confi...
Christoph Koch, Michaela Götz
DEXAW
1999
IEEE
111views Database» more  DEXAW 1999»
13 years 10 months ago
A Parallel Algebra for Object Databases
This paper describes an algebra for use with parallel object databases, and in particular ODMG compliant databases with OQL. Although there have been many proposals for parallel r...
Sandra de F. Mendes Sampaio, Norman W. Paton, Paul...
FOCS
2008
IEEE
14 years 7 days ago
Size Bounds and Query Plans for Relational Joins
Relational joins are at the core of relational algebra, which in turn is the core of the standard database query language SQL. As their evaluation is expensive and very often domi...
Albert Atserias, Martin Grohe, Dániel Marx
VLDB
2000
ACM
120views Database» more  VLDB 2000»
13 years 9 months ago
The 3W Model and Algebra for Unified Data Mining
Theodore Johnson, Laks V. S. Lakshmanan, Raymond T...
BTW
2007
Springer
142views Database» more  BTW 2007»
13 years 12 months ago
Algebraic Query Optimization for Distributed Top-k Queries
: Distributed top-k query processing is increasingly becoming an essential functionality in a large number of emerging application classes. This paper addresses the efficient alge...
Thomas Neumann, Sebastian Michel