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» Approximate lineage for probabilistic databases
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PVLDB
2008
111views more  PVLDB 2008»
13 years 4 months ago
Approximate lineage for probabilistic databases
In probabilistic databases, lineage is fundamental to both query processing and understanding the data. Current systems s.a. Trio or Mystiq use a complete approach in which the li...
Christopher Ré, Dan Suciu
SIGMOD
2010
ACM
181views Database» more  SIGMOD 2010»
13 years 9 months ago
Lineage processing over correlated probabilistic databases
Bhargav Kanagal, Amol Deshpande
ICDE
2008
IEEE
160views Database» more  ICDE 2008»
14 years 6 months ago
Exploiting Lineage for Confidence Computation in Uncertain and Probabilistic Databases
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...
Anish Das Sarma, Martin Theobald, Jennifer Widom
VLDB
2007
ACM
118views Database» more  VLDB 2007»
14 years 4 months ago
Materialized Views in Probabilistic Databases for Information Exchange and Query Optimization
Views over probabilistic data contain correlations between tuples, and the current approach is to capture these correlations using explicit lineage. In this paper we propose an al...
Christopher Re, Dan Suciu
PODS
2007
ACM
131views Database» more  PODS 2007»
14 years 4 months ago
Provenance semirings
We show that relational algebra calculations for incomplete databases, probabilistic databases, bag semantics and whyprovenance are particular cases of the same general algorithms...
Todd J. Green, Gregory Karvounarakis, Val Tannen