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A Possibilistic Logic Approach to Conditional Preference Queries

Dubois, Didier and Prade, Henri and Touazi, Fayçal A Possibilistic Logic Approach to Conditional Preference Queries. (2013) In: 10th International Conference Flexible Query Answering (FQAS 2013), 18 September 2013 - 20 September 2013 (Granada, Spain).

(Document in English)

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Official URL: http://dx.doi.org/10.1007/978-3-642-40769-7_33


The paper presents a new approach to deal with database preference queries, where preferences are represented in the style of possibilistic logic, using symbolic weights. The symbolic weights may be processed without the need of a numerical assignment of priority. Still, it is possible to introduce a partial ordering among the symbolic weights if necessary. On this basis, four methods that have an increasing discriminating power for ranking the answers to conjunctive queries, are proposed. The approach is compared to different lines of research in preference queries including skyline-based methods and fuzzy set-based queries. With the four proposed ranking methods the first group of best answers is made of non dominated items. The purely qualitative nature of the approach avoids the commensurability requirement of elementary evaluations underlying the fuzzy logic methods.

Item Type:Conference or Workshop Item (Paper)
Additional Information:Thanks to Springer editor. This papers appears in Volume 8132 Lecture Notes in Artificial Intelligence ISSN : 0302-9743. ISBN: 978-3-642-40768-0. The original PDF is available at : http://link.springer.com/chapter/10.1007%2F978-3-642-40769-7_33
HAL Id:hal-01212939
Audience (conference):International conference proceedings
Uncontrolled Keywords:
Institution:Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Deposited On:16 Sep 2015 13:26

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