On the Decidability Status of Fuzzy AℒC$\mathcal {A}\mathcal {L}\mathcal {C}$ with General Concept Inclusions
On the Decidability Status of Fuzzy AℒC$\mathcal {A}\mathcal {L}\mathcal {C}$ with General Concept Inclusions
复制标题
论含一般概念的模糊 AâC$mathcal {A}mathcal {L}mathcal {C}$ 的可判定性状态
DOI:
10.1007/s10992-014-9329-3
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发表时间:
2015
影响因子:
1.5
通讯作者:
Rafael Peñaloza
中科院分区:
文献类型:
--
作者:
Franz Baader;Stefan Borgwardt;Rafael Peñaloza
The combination of Fuzzy Logics and Description Logics (DLs) has been investigated for at least two decades because such fuzzy DLs can be used to formalize imprecise concepts. In particular, tableau algorithms for crisp Description Logics have been extended to reason also with their fuzzy counterparts. It has turned out, however, that in the presence of general concept inclusion axioms (GCIs) this extension is less straightforward than thought. In fact, a number of tableau algorithms claimed to deal correctly with fuzzy DLs with GCIs have recently been shown to be incorrect. In this paper, we concentrate on fuzzy, the fuzzy extension of the well-known DL. We present a terminating, sound, and complete tableau algorithm for fuzzywith arbitrary continuous t-norms. Unfortunately, in the presence of GCIs, this algorithm does not yield a decision procedure for consistency of fuzzyontologies since it uses as a sub-procedure a solvability test for a finitely represented, but possibly infinite, system of inequations over the real interval [0,1], which are built using the t-norm. In general, it is not clear whether this solvability problem is decidable for such infinite systems of inequations. This may depend on the specific t-norm used. In fact, we also show in this paper that consistency of fuzzyontologies with GCIs is undecidable for the product t-norm. This implies, of course, that for the infinite systems of inequations produced by the tableau algorithm for fuzzywith product t-norm, solvability is in general undecidable. We also give a brief overview of recently obtained (un)decidability results for fuzzyw.r.t. other t-norms.
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DOI:
10.1109/fuzzy.2011.6007520
发表时间:
2011
期刊:
2011 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE 2011)
影响因子:
--
作者:
F. Baader;R. Peñaloza
通讯作者:
R. Peñaloza
DOI:
--
发表时间:
1993
期刊:
Journal of Logic, Language and Information
影响因子:
--
作者:
F. Baader;H. Bürckert;Bernhard Nebel;W. Nutt;G. Smolka
通讯作者:
G. Smolka
DOI:
10.1016/j.ijar.2010.01.001
发表时间:
2010-07
期刊:
Int. J. Approx. Reason.
影响因子:
--
作者:
Àngel García-Cerdaña;Eva Armengol;F. Esteva
通讯作者:
Àngel García-Cerdaña;Eva Armengol;F. Esteva
DOI:
--
发表时间:
2012
期刊:
Description Logics
影响因子:
--
作者:
Stefan Borgwardt;R. Peñaloza
通讯作者:
R. Peñaloza
DOI:
10.1007/978-3-642-31365-3_9
发表时间:
2012
期刊:
Int. J. Uncertain. Fuzziness Knowl. Based Syst.
影响因子:
--
作者:
Stefan Borgwardt;Felix Distel;R. Peñaloza
通讯作者:
R. Peñaloza