| Title:
|
A note on resolving inconsistency of fuzzy relational equations on Łukasiewicz algebra (English) |
| Author:
|
Li, Pingke |
| Language:
|
English |
| Journal:
|
Kybernetika |
| ISSN:
|
0023-5954 (print) |
| ISSN:
|
1805-949X (online) |
| Volume:
|
62 |
| Issue:
|
4 |
| Year:
|
2026 |
| Pages:
|
735-754 |
| Summary lang:
|
English |
| . |
| Category:
|
math |
| . |
| Summary:
|
The inconsistency of fuzzy relational equations is frequently encountered when modelling an inference system with fuzzy logic. A polynomial-time direct search procedure is designed to resolve the inconsistency for fuzzy relational equations on Łukasiewicz algebra by minimizing the maximum absolute deviation to the right-hand side vector. Alternatively, a reformulation approach is proposed by minimizing instead the sum of absolute deviations. It results in a polynomial-sized mixed integer linear programming problem and hence, may be readily solved with the aid of an off-the-shelf optimization solver. This reformulation approach is flexible in nature and can be adjusted to deal with some other problems related to the inconsistency of fuzzy relational equations. (English) |
| Keyword:
|
fuzzy relational equations |
| Keyword:
|
inconsistency |
| Keyword:
|
optimal approximation |
| Keyword:
|
mixed integer linear programming |
| MSC:
|
08A72 |
| MSC:
|
15B15 |
| MSC:
|
90C11 |
| DOI:
|
10.14736/kyb-2026-4-0735 |
| . |
| Date available:
|
2026-10-07T10:24:26Z |
| Last updated:
|
2026-10-07 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/153781 |
| . |
| Reference:
|
[1] Baccelli, F., Cohen, G., Olsder, G. J., Quadrat, J.-P.: Synchronization and Linearity: An Algebra for Discrete Event Systems..Wiley, Chichester 1992. |
| Reference:
|
[2] Baaj, I.: On the handling of inconsistent systems of max-min fuzzy relational equations..Fuzzy Sets Syst. 482 (2024), 108912. |
| Reference:
|
[3] Baaj, I.: On the handling of inconsistent systems based on max-product and max-Lukasiewicz compositions..Fuzzy Sets Syst. 498 (2025), 109142. |
| Reference:
|
[4] Bělohlávek, R.: Fuzzy Relational Systems: Foundations and Principles..Springer, Berlin 2002. |
| Reference:
|
[5] Butkovič, P.: Max-linear Systems: Theory and Algorithms..Springer, Berlin 2010. Zbl 1202.15032 |
| Reference:
|
[6] Cechlárová, K.: A note on unsolvable systems of max-min (fuzzy) equations..Linear Algebra Appl. 310 (2000), 123-128. MR 1753171, |
| Reference:
|
[7] Cechlárová, K., Cuninghame-Green, R. A.: Soluble approximation of linear systems in max-plus algebra..Kybernetika 39 (2003), 137-141. MR 1996552 |
| Reference:
|
[8] Cechlárová, K., Diko, P.: Resolving infeasibility in extremal algebras..Linear Algebra Appl. 290 (1999), 267-273. MR 1672997, |
| Reference:
|
[9] Cimler, R., Gavalec, M., Zimmermann, K.: An optimization problem on the image set of a (max, min) fuzzy operator..Fuzzy Sets Syst. 341 (2018), 113-122. |
| Reference:
|
[10] Cuninghame-Green, R. A.: Minimax Algebra, Lecture Notes in Economics and Mathematical Systems, Vol. 166..Springer, Berlin 1979. |
| Reference:
|
[11] Cuninghame-Green, R. A., Cechlárová, K.: Residuation in fuzzy algebra and some applications..Fuzzy Sets Syst. 71 (1995), 227-239. |
| Reference:
|
[12] Baets, B. De: Analytical solution methods for fuzzy relational equations..In: Fundamentals of Fuzzy Sets, The Handbooks of Fuzzy Sets Series, Vol. 1 (D. Dubois and H. Prade, eds.), Kluwer, Dordrecht 2000, pp. 291-340. Zbl 0970.03044 |
| Reference:
|
[13] Nola, A. Di, Lettieri, A., Perfilieva, I., Novák, V.: Algebraic analysis of fuzzy systems..Fuzzy Sets Syst. 158 (2007), 1-22. |
| Reference:
|
[14] Gavalec, M., Němcová, Z., Sergeev, S.: Tropical linear algebra with the Łukasiewicz T-norm..Fuzzy Sets Syst. 276 (2015), 131-148. |
| Reference:
|
[15] Gondran, M., Minoux, M.: Graphs, Dioids and Semirings: New Models and Algorithms..Springer, New York 2008. Zbl 1201.16038 |
| Reference:
|
[16] Gotoh, J., Uryasev, S.: Two pairs of families of polyhedral norms versus $\ell_p$-norms: proximity and applications in optimization..Math. Programm. 156 (2016), 391-431. |
| Reference:
|
[17] Hájek, P.: Metamathematics of Fuzzy Logic..Kluwer, Dordrecht 1998. Zbl 1007.03022 |
| Reference:
|
[18] Klement, E. P., Mesiar, R., Pap, E.: Triangular Norms..Kluwer, Dordrecht 2000. Zbl 1087.20041 |
| Reference:
|
[19] Li, P.: A heuristic method to compute the approximate postinverses of a fuzzy matrix..IEEE Trans. Fuzzy Syst. 22 (2014), 1347-1351. |
| Reference:
|
[20] Li, P.: A note on resolving the inconsistency of one-sided max-plus linear equations..Kybernetika 55 (2019), 531-539. |
| Reference:
|
[21] Li, P.: On sparsity of approximate solutions to max-plus linear systems..Kybernetika 60 (2024), 412-425. |
| Reference:
|
[22] Li, P.: Linear optimization over the approximate solutions of a system of max-min equations..Fuzzy Sets Syst. 484 (2024), 108946. |
| Reference:
|
[23] Li, P.: A reformulation approach to resolving the inconsistency of max-min equations on fuzzy algebra..Int. J. General Syst. 54 (2025), 1014-1026. |
| Reference:
|
[24] Li, P., Fang, S.-C.: On the resolution and optimization of a system of fuzzy relational equations with sup-$T$ composition..Fuzzy Optim. Decision Making 7 (2008), 169-214. Zbl 1169.90493, |
| Reference:
|
[25] Li, P., Fang, S.-C.: A survey on fuzzy relational equations. Part I: Classification and solvability..Fuzzy Optim. Decision Making 8 (2009), 179-229. |
| Reference:
|
[26] Li, P., Fang, S.-C.: Latticized linear optimization on the unit interval..IEEE Trans. Fuzzy Syst. 17 (2009), 1353-1365. |
| Reference:
|
[27] Li, P., Fang, S.-C.: Chebyshev approximation of inconsistent fuzzy relational equations with max-$T$ composition..In: Fuzzy Optimization (W. A. Lodwick and J. Kacprzyk, eds.), Springer, Berlin 2010, pp. 109-124. |
| Reference:
|
[28] Pedrycz, W.: Numerical and applicational aspects of fuzzy relational equations..Fuzzy Sets Syst. 11 (1983), 1-18. |
| Reference:
|
[29] Pedrycz, W.: Inverse problem in fuzzy relational equations..Fuzzy Sets Syst. 36 (1990), 277-291. |
| Reference:
|
[30] Peeva, K., Kyosev, Y.: Fuzzy Relational Calculus: Theory, Applications and Software..World Scientific, New Jersey 2004. Zbl 1083.03048 |
| Reference:
|
[31] Perfilieva, I., Novák, V.: System of fuzzy relation equations as a continuous model of if–then rules..Inf. Sci. 177 (2007), 3218-3227. |
| Reference:
|
[32] Sanchez, E.: Resolution of composite fuzzy relation equations..Inform. Control 30 (1976), 38-48. |
| Reference:
|
[33] Tharwat, A., Zimmermann, K.: One class of separable optimization problems: Solution method, application..Optimization 59 (2010), 619-625. |
| Reference:
|
[34] Zimmermann, K.: Disjunctive optimization, max-separable problems and extremal algebras..Theoret. Computer Sci. 293 (2003), 45-54. |
| . |