Kybernetika 57 no. 2, 352-371, 2021

On the constructions of t-norms and t-conorms on some special classes of bounded lattices

Emel AşıcıDOI: 10.14736/kyb-2021-2-0352

Abstract:

Recently, the topic related to the construction of triangular norms and triangular conorms on bounded lattices using ordinal sums has been extensively studied. In this paper, we introduce a new ordinal sum construction of triangular norms and triangular conorms on an appropriate bounded lattice. Also, we give some illustrative examples for clarity. Then, we show that a new construction method can be generalized by induction to a modified ordinal sum for triangular norms and triangular conorms on an appropriate bounded lattice, respectively. And we provide some illustrative examples.

Keywords:

t-norm, ordinal sum, t-conorm, bounded lattice

Classification:

03E72, 03B52

References:

  1. E. Aşıcı: An extension of the ordering based on nullnorms. Kybernetika 55 (2019), 217-232.   DOI:10.14736/kyb-2019-2-0217
  2. E. Aşıcı: The equivalence of uninorms induced by the $ U $-partial order. Hacet. J. Math. Stat. 357 (2019), 2-26.   DOI:10.15672/hjms.2019.662
  3. E. Aşıcı and R. Mesiar: New constructions of triangular norms and triangular conorms on an arbitrary bounded lattice. Int. J. Gen. Systems 49 (2020), 143-160.   DOI:10.1080/03081079.2019.1668385
  4. E. Aşıcı and R. Mesiar: Alternative approaches to obtain t-norms and t-conorms on bounded lattices. Iran. J. Fuzzy Syst. 17 (2020), 121-138.   DOI:10.22111/IJFS.2020.5410
  5. E. Aşıcı and R. Mesiar: On the construction of uninorms on bounded lattices. Fuzzy Sets Syst. 408 (2021), 65-85.   DOI:10.1016/j.fss.2020.02.007
  6. E. Aşıcı and F. Karaçal: On the T-partial order and properties. Inform. Sci. 267 (2014), 323-333.   DOI:10.1016/j.ins.2014.01.032
  7. B. Bedregal, R. Reiser, H. Bustince, C. Lopez-Molina and V. Torra: Aggregation functions for typical hesitant fuzzy elements and the action of automorphisms. Inform. Sci. 255 (2014), 1, 82-99.   DOI:10.1016/j.ins.2013.08.024
  8. G. Birkhoff: Lattice Theory. Third edition. Providence, 1967.   CrossRef
  9. A. Clifford: Naturally totally ordered commutative semigroups. Amer. J. Math. 76 (1954), 631-646.   DOI:10.2307/2372706
  10. G. D. Çaylı: Construction methods for idempotent nullnorms on bounded lattices. Appl. Math. Comput. 366 (2020).   DOI:10.1016/j.amc.2019.124746
  11. G. D. Çaylı: Some methods to obtain t-norms and t-conorms on bounded lattices. Kybernetika 55 (2019), 273-294.   DOI:10.14736/kyb-2019-2-0273
  12. G. D. Çaylı: Alternative approaches for generating uninorms on bounded lattices. Inform. Sci. 488 (2019), 111-139.   DOI:10.1016/j.ins.2019.03.007
  13. G. D. Çaylı: On a new class of t-norms and t-conorms on bounded lattices. Fuzzy Sets Syst. 332 (2018), 129-143.   DOI:10.1016/j.fss.2017.07.015
  14. Y. Dan, B. Q. Hu and J. Qiao: New construction of t-norms and t-conorms on bounded lattices. Fuzzy Sets Syst. 395 (2020), 40-70.   DOI:10.1016/j.fss.2019.05.017
  15. A. Dvořák and M. Holčapek: New construction of an ordinal sum of t-norms and t-conorms on bounded lattices. Inform. Sci. 515 (2020), 116-131.   DOI:10.1016/j.ins.2019.12.003
  16. Ü. Ertuğrul, F. Karaçal and R. Mesiar: Modified ordinal sums of triangular norms and triangular conorms on bounded lattices. Int. J. Intell. Syst. 30 (2015), 807-817.   DOI:10.1002/int.21713
  17. J. A. Goguen: L-fuzzy sets. J. Math. Anal. Appl. 18 (1967), 145-174.   DOI:10.1016/0022-247X(67)90189-8
  18. M. A. İnce, F. Karaçal and R. Mesiar: Medians and nullnorms on bounded lattices. Fuzzy Sets Syst. 289 (2016), 74-81.   DOI:10.1016/j.fss.2015.05.015
  19. F. Karaçal, M. A. İnce and R. Mesiar: Nullnorms on bounded lattices. Inform. Sci. 325 (2015), 227-235.   DOI:10.1016/j.ins.2015.06.052
  20. E. P. Klement, R. Mesiar and E. Pap: Triangular Norms. Kluwer Academic Publishers, Dordrecht 2000.   CrossRef
  21. J. Medina: Characterizing when an ordinal sum of t-norms is a t-norm on bounded lattices. Fuzzy Sets Syst. 202 (2012), 75-88.   DOI:10.1016/j.fss.2012.03.002
  22. P. S. Mostert and A. L. Shields: On the Structure of Semigroups on a Compact Manifold With Boundary. Ann. Math., II. Ser. 65 (1957), 117-143.   DOI:10.2307/1969668
  23. Y. Ouyang, H-P. Zhang and B. D. Baets: Ordinal sums of triangular norms on a bounded lattice. Fuzzy Sets Syst. 408 (2021), 1-12.   DOI:10.1016/j.fss.2020.02.003
  24. R. M. Rodriguez, L. Martinez and F. Herrera: Fuzzy linguistic term sets for decision making. IEEE Trans. Fuzzy Syst. 20 (2012), 2, 109-119.   DOI:10.1109/TFUZZ.2011.2170076
  25. R. M. Rodriguez, L. Martinez and F. Herrera: A group decision making model dealing with comparative linguistic expressions based on hesitant fuzzy linguistic term sets. Inform. Sci. 241 (2013), 28-42.   DOI:10.1093/mutage/get006
  26. R. M. Rodriguez, L. Martinez, V. Torra, Z. S. Xu and F. Herrera: Hesitant fuzzy sets: state of the art and future directions. Int. J. Intell. Syst. 29 (2014), 6, 495-524.   DOI:10.1002/int.21654
  27. S. Saminger: On ordinal sums of triangular norms on bounded lattices. Fuzzy Sets Syst. 325 (2006), 1403-1416.   CrossRef
  28. B. Schweizer and A. Sklar: Statistical metric spaces. Pacific J. Math. 10 (1960), 313-334.   DOI:10.2140/pjm.1960.10.313
  29. V. Torra: Hesitant fuzzy sets. Int. J. Intell. Syst. 25 (2010), 529-539.   DOI:10.1002/int.20418