Probabilistic database
A probabilistic database is an uncertain database in which the possible worlds have associated probabilities. Probabilistic database management systems are currently an active area of research. "While there are currently no commercial probabilistic database systems, several research prototypes exist..."[1]
Probabilistic databases distinguish between the logical data model and the physical representation of the data much like relational databases do in the ANSI-SPARC Architecture. In probabilistic databases this is even more crucial since such databases have to represent very large numbers of possible worlds, often exponential in the size of one world (a classical database), succinctly[2][3].
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References
- ^ Vinod Muthusamy, Haifeng Liu, Hans-Arno Jacobsen: Predictive Publish/Subscribe Matching. University of Toronto.
- ^ Nilesh N. Dalvi, Dan Suciu: Efficient query evaluation on probabilistic databases. VLDB J. 16(4): 523-544 (2007)
- ^ Lyublena Antova, Christoph Koch, Dan Olteanu: 10^(10^6) Worlds and Beyond: Efficient Representation and Processing of Incomplete Information. ICDE 2007: 606-615
External links
- The MayBMS project at Cornell University (sourceforge.net project site)
- The MystiQ project at the University of Washington
- The Orion project at Purdue University
- The Trio project at Stanford University
- The BayesStore project at the University of California, Berkeley
- The PrDB project at the University of Maryland, Colllege Park
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