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17th International Workshop on Database and Expert Systems Applications (DEXA'06) (2006)
Krakow, Poland
Sept. 4, 2006 to Sept. 8, 2006
ISSN: 1529-4188
ISBN: 0-7695-2641-1
pp: 415-419
Slawomir Zadrozny , Polish Academy of Sciences, Poland
Janusz Kacprzyk , Polish Academy of Sciences, Poland
ABSTRACT
The concepts of bipolar queries and queries with preferences are studied. Various interpretations of the former, recently defined by Dubois and Prade, are discussed. The latter were defined by Chomicki together with a new relational algebra operator winnow. The fuzzy version of the winnow operator is proposed. It is shown how it may be used to express a selected interpretation of the bipolar queries.
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CITATION

J. Kacprzyk and S. Zadrozny, "Bipolar Queries and Queries with Preferences (Invited Paper)," 17th International Workshop on Database and Expert Systems Applications (DEXA'06)(DEXA), Krakow, Poland, 2006, pp. 415-419.
doi:10.1109/DEXA.2006.36
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