On various forms of bipolarity in flexible querying
- 10.2991/eusflat.2013.52How to use a DOI?
- preference query bipolarity possibilistic logic
The paper discusses the modeling of ''if possible" in requirements of the form ''A and if possible B". We distinguish between two types of understanding: either i) A and B are requirements of the same nature and are viewed as constraints with different levels of priority, or ii) they are of different nature (only A induces constraint(s) and B is only used for breaking ties among items that are equally satisfying A). We indicate that the two views are related to different types of bipolarity, and discuss them in relation with possibilistic logic. The disjunctive dual of the first view (''A or at least B") is then presented in this logical setting. We also briefly mention the idea of an extension of the second view where B may refer both to bonus conditions or malus conditions that may increase or decrease respectively the interest in an item satisfying A.
- © 2013, the Authors. Published by Atlantis Press.
- Open Access
- This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).
Cite this article
TY - CONF AU - Didier Dubois AU - Henri Prade PY - 2013/08 DA - 2013/08 TI - On various forms of bipolarity in flexible querying BT - Proceedings of the 8th conference of the European Society for Fuzzy Logic and Technology (EUSFLAT-13) PB - Atlantis Press SP - 366 EP - 373 SN - 1951-6851 UR - https://doi.org/10.2991/eusflat.2013.52 DO - 10.2991/eusflat.2013.52 ID - Dubois2013/08 ER -