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» On Query Algebras for Probabilistic Databases

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VLDB
2007
ACM

118views Database» more VLDB 2007»

Materialized Views in Probabilistic Databases for Information Exchange and Query Optimization

14 years 7 months ago

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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

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VLDB
2004
ACM

129views Database» more VLDB 2004»

Probabilistic Ranking of Database Query Results

14 years 22 days ago

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We investigate the problem of ranking answers to a database query when many tuples are returned. We adapt and apply principles of probabilistic models from Information Retrieval f...

Surajit Chaudhuri, Gautam Das, Vagelis Hristidis, ...

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DOLAP
2004
ACM

112views Information Technology» more DOLAP 2004»

Evaluating XML-extended OLAP queries based on a physical algebra

14 years 25 days ago

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In today’s OLAP systems, integrating fast changing data, e.g., stock quotes, physically into a cube is complex and time-consuming. The widespread use of XML makes it very possib...

Xuepeng Yin, Torben Bach Pedersen

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CORR
2010
Springer

83views Education» more CORR 2010»

Faster Query Answering in Probabilistic Databases using Read-Once Functions

13 years 2 months ago

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Sudeepa Roy, Vittorio Perduca, Val Tannen

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