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Outerjoins in Uncertain Databases

Ikeda, Robert and Widom, Jennifer (2009) Outerjoins in Uncertain Databases. In: Management of Uncertain Data (MUD), August 28, 2009, Lyon, France.




We consider the problem of incorporating outerjoins into uncertain databases. We motivate why outerjoins are useful, but tricky, in uncertain databases, arguing that standard possible-worlds semantics may be inappropriate for outerjoins. We explore a variety of alternative semantics through a running example, and we briefly discuss implementation considerations.

Item Type:Conference or Workshop Item (Paper)
ID Code:925
Deposited By:Robert Ikeda
Deposited On:28 May 2009 13:40
Last Modified:04 Aug 2009 17:10

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