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» Efficient Query Evaluation on Probabilistic Databases
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CORR
2008
Springer
107views Education» more  CORR 2008»
14 years 9 months ago
Semantics and Evaluation of Top-k Queries in Probabilistic Databases
Abstract. We study here fundamental issues involved in top-k query evaluation in probabilistic databases. We consider simple probabilistic databases in which probabilities are asso...
Xi Zhang, Jan Chomicki
ICDE
2003
IEEE
98views Database» more  ICDE 2003»
15 years 11 months ago
XPath Query Evaluation: Improving Time and Space Efficiency
Contemporary XPath query engines evaluate queries in time exponential in the sizes of input queries, a fact that has gone unnoticed for a long time. Recently, the first main
Georg Gottlob, Christoph Koch, Reinhard Pichler
ICDE
2009
IEEE
156views Database» more  ICDE 2009»
15 years 11 months ago
Integrating and Ranking Uncertain Scientific Data
Mediator-based data integration systems resolve exploratory queries by joining data elements across sources. In the presence of uncertainties, such multiple expansions can quickly ...
Landon Detwiler, Wolfgang Gatterbauer, Brenton Lou...
ICDT
2010
ACM
127views Database» more  ICDT 2010»
15 years 7 months ago
Efficient Processing of 3-Sided Range Queries with Probabilistic Guarantees
Alexis Kaporis, Apostolos Papadopoulos, Spyros Sio...
VLDB
2004
ACM
142views Database» more  VLDB 2004»
15 years 3 months ago
Efficient Indexing Methods for Probabilistic Threshold Queries over Uncertain Data
Reynold Cheng, Yuni Xia, Sunil Prabhakar, Rahul Sh...