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» A Possible World Approach to Uncertain Relational Data
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DEXAW
2004
IEEE
88views Database» more  DEXAW 2004»
13 years 8 months ago
A Possible World Approach to Uncertain Relational Data
Data exchange between embedded systems and other small or large computing devices increases. Since data in different data sources may refer to the same real world objects, data ca...
Ander de Keijzer, Maurice van Keulen
ICDE
2009
IEEE
157views Database» more  ICDE 2009»
13 years 11 months ago
Clustering Uncertain Data with Possible Worlds
The topic of managing uncertain data has been explored in many ways. Different methodologies for data storage and query processing have been proposed. As the availability of manag...
Peter Benjamin Volk, Frank Rosenthal, Martin Hahma...
ICDT
2009
ACM
127views Database» more  ICDT 2009»
13 years 11 months ago
A logical account of uncertain databases based on linear logic
A formal semantics of uncertain databases typically takes an algebraic approach by mapping an uncertain database to a set of relational databases, or possible worlds. We present a...
Sungwoo Park, Seung-won Hwang
ICDE
2009
IEEE
170views Database» more  ICDE 2009»
14 years 6 months ago
Semantics of Ranking Queries for Probabilistic Data and Expected Ranks
Abstract-- When dealing with massive quantities of data, topk queries are a powerful technique for returning only the k most relevant tuples for inspection, based on a scoring func...
Graham Cormode, Feifei Li, Ke Yi
CORR
2011
Springer
175views Education» more  CORR 2011»
12 years 11 months ago
A Novel Probabilistic Pruning Approach to Speed Up Similarity Queries in Uncertain Databases
Abstract— In this paper, we propose a novel, effective and efficient probabilistic pruning criterion for probabilistic similarity queries on uncertain data. Our approach support...
Thomas Bernecker, Tobias Emrich, Hans-Peter Kriege...