Abstract
The structure of uninorms which are continuous on some special parts of the unit square is discussed. After a summary of partial results achieved in the characterization of uninorms with continuous underlying t-norm and t-conorm in the past years, a full characterization of these uninorms is described. Representation theorems based on the set of discontinuity points of such a uninorm and the ordinal sum construction for semigroups are presented. Further generalizations yield uninorms with continuous diagonal functions. Several results related to uninorms with continuous diagonals are investigated. Further generalizations are also discussed.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Aczél, J.: Lectures on Functional Equations and their Applications. Academic Press, New York (1966)
Akella, P.: Structure of \(n\)-uninorms. Fuzzy Sets Syst. 158, 1631–1651 (2007)
De Baets, B.: Idempotent uninorms. Eur. J. Oper. Res. 118, 631–642 (1998)
De Baets, B., Fodor, J., Ruiz, D., Torrens, J.: Idempotent uninorms on finite ordinal scales. Int. J. Uncertain. Fuzziness, Knowl.-Based Syst. 107, 1–14 (2009)
Clifford, A.H.: Naturally totally ordered commutative semigroups. Am. J. Math. 76, 631–646 (1954)
Dombi, J.: A general class of fuzzy operators, the De Morgan class of fuzzy operators and fuzziness measures induced by fuzzy operator. Fuzzy Sets Syst. 8, 149–163 (1982)
Drewniak, J., Drygaś, P.: On a class of uninorms. Int. J. Uncertain. Fuzziness, Knowl.-Based Syst. 10, 5–10 (2002)
Drygaś, P.: Discussion of the structure of uninorms. Kybernetika 41, 213–226 (2005)
Drygaś, P.: On monotonic operations which are locally internal on some subset of their domain. Proc. EUSFLAT Conf. 2, 185–191 (2007)
Drygaś, P.: On properties of uninorms with underlying t-norm and t-conorm given as ordinal sums. Fuzzy Sets Syst. 161, 149–157 (2010)
Fodor, J., De Baets, B.: A single-point characterization of representable uninorms. Fuzzy Sets Syst. 202, 89–99 (2012)
Fodor, J., Yager, R.R., Rybalov, A.: Structure of uninorms. Int. J. Uncertain. Fuzziness, Knowl.-Based Syst. 5, 411–427 (1997)
Hájek, P.: Observations on the monoidal t-norm logic. Fuzzy Sets Syst. 132, 107–112 (2002)
Hu, S., Li, Z.: The structure of continuous uninorms. Fuzzy Sets Syst. 124, 43–52 (2001)
Jayaram, B., Baczyński, M., Mesiar, R.: R-implications and the exchange principle: a complete characterization. In: Galichet, S., Montero, J., Mauris, G. (eds.) Proceedings of EUSFLAT-2011 and LFA-2011, pp. 223–229. Aix-les-Bains, France (2011)
Jenei, S.: A note on the ordinal sum theorem and its consequence for the construction of triangular norms. Fuzzy Sets Syst. 126, 199–205 (2002)
Kimberling, C.: On a class of associative functions. Publ. Math. Debrecen 20, 21–39 (1973)
Klement, E.P., Mesiar, R., Pap, E.: On the relationship of associative compensatory operators to triangular norms and conorms. Int. J. Uncertainty, Fuzziness, Knowl.-Based Syst. 4, 129–144 (1996)
Klement, E.P., Mesiar, R., Pap, E.: Triangular Norms. Kluwer Academic Publishers, Dordrecht (2000)
Krause, G.M.: The Devil’s Terraces: a Discontinuous Associative Function, personal communication (2015)
Li, G., Liu, H.W., Fodor, J.: Single-point characterization of uninorms with nilpotent underlying t-norm and t-conorm. Int. J. Unc. Fuzz. Knowl. Based Syst. 22, 591–604 (2014)
Li, Y.M., Shi, Z.K.: Remarks on uninorm aggregation operators. Fuzzy Sets Syst. 114, 377–380 (2000)
Liu, H.W.: Semi-uninorms and implications on a complete lattice. Fuzzy Sets Syst. 191, 72–82 (2012)
Martín, J., Mayor, G., Torrens, J.: On locally internal monotonic operations. Fuzzy Sets Syst. 137, 27–42 (2003)
Mas, M., Mayor, G., Torrens, J.: t-operators and uninorms on a finite totally ordered set. Int. J. Intell. Syst. 14, 909–922 (1999)
Mas, M., Monserrat, M., Torrens, J.: On left and right uninorms. Int. J. Uncertainty, Fuzziness Knowl.-Based Syst. 9(4), 491–507 (2001)
Mesiar, R., Navara, M.: Diagonals of continuous triangular norms. Fuzzy Sets Syst. 104, 35–41 (1999)
Mesiar, R.: Triangular norms—an overview. In: Reusch, B., Temme, K.H. (eds.) Computational Intelligence in Theory and Practice, pp. 35–54. Physica-Verlag, Heidelberg (2001)
Mesiarová, A.: Wild T-norms. J. Electr. Eng. 12/s, 36–40 (2000)
Mesiarová, A.: Continuous triangular subnorms. Fuzzy Sets Syst. 142, 75–83 (2004)
Mesiarová-Zemánková, A.: Multi-polar t-conorms and uninorms. Inf. Sci. 301, 227–240 (2015)
Mesiarová-Zemánková, A.: Ordinal sum of uninorms and generalized uninorms, Int. J. Approximate Reasoning, under Rev. (2015)
Mesiarová-Zemánková, A.: Ordinal sums of representable uninorms, Fuzzy Sets Syst., under Rev. (2015)
Mesiarová-Zemánková., A.: Characterization of uninorms with continuous underlying t-norm and t-conorm by their set of discontinuity points. IEEE Trans. Fuzzy Syst., under Rev. (2015)
Mesiarová-Zemánková., A.: Characterization of uninorms with continuous underlying t-norm and t-conorm by means of the ordinal sum construction. Int. J. Approximate Reasoning, under Rev. (2015)
Mesiarová-Zemánková., A.: T-norms and t-conorms continuous around diagonals. Fuzzy Sets Syst., under Rev. (2015)
Mesiarová-Zemánková A.: Continuous completions of triangular norms known on a subregion of the unit interval. Fuzzy Sets Syst., under Rev. (2015)
Mesiarová-Zemánková A.: Extremal completions of triangular norms known on a subregion of the unit interval. In: Torra, V., Narukawa, Y. (eds.), Proceedings MDAI 2015 Conference, LNAI 9321, pp. 21–32. Springer (2015)
Mesiarová-Zemánková A.: Uninorms continuous on \([{0, e}{[}^2\cup ] {e,1}{]}^2\). Inf. Sci., under Rev. (2015)
Petrík, M., Mesiar, R.: On the structure of special classes of uninorms. Fuzzy Sets Syst. 240, 22–38 (2014)
Ruiz-Aguilera, D., Torrens, J., De Baets, B., Fodor, J.: Some remarks on the characterization of idempotent uninorms. In: Hüllermeier, E., Kruse, R., Hoffmann, F. (eds.) Computational Intelligence for Knowledge-Based Systems Design, Proceedings of the 13th IPMU 2010 Conference, LNAI 6178, pp. 425–434. Springer, Berlin (2010)
Ruiz, D., Torrens, J.: Distributivity and conditional distributivity of a uninorm and a continuous t-conorm. IEEE Trans. Fuzzy Syst. 14(2), 180–190 (2006)
Schweizer, B., Sklar, A.: Probabilistic Metric Spaces. North-Holland, New York (1983)
Smutná, D.: Non-Continuous t-norms with continuous diagonal. J. Electr. Eng. 12/s, 51–53 (2000)
Smutná, D.: On a peculiar t-norm. BUSEFAL 75, 60–67 (1998)
Su, Y., Wang, Z., Tang, K.: Left and right semi-uninorms on a complete lattice. Kybernetika 49(6), 948–961 (2013)
Tkadlec, J.: Triangular norms with continuous diagonals. Tatra Mt. Math. Publ. 16, 187–195 (1999)
Wang, Z., Fang, J.X.: Residual operations of left and right uninorms on a complete lattice. Fuzzy Sets Syst. 160, 22–31 (2009)
Yager, R.R., Rybalov, A.: Uninorm aggregation operators. Fuzzy Sets Syst. 80, 111–120 (1996)
Yager, R.R., Rybalov, A.: Bipolar aggregation using the uninorms. Fuzzy Optim. Decis. Making 10, 59–70 (2011)
Acknowledgments
This work was supported by grants VEGA 2/0049/14, APVV-0178-11 and Program Fellowship of SAS.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer International Publishing Switzerland
About this chapter
Cite this chapter
Mesiarová-Zemánková, A. (2016). Structure of Uninorms with Continuous Diagonal Functions. In: Saminger-Platz, S., Mesiar, R. (eds) On Logical, Algebraic, and Probabilistic Aspects of Fuzzy Set Theory. Studies in Fuzziness and Soft Computing, vol 336. Springer, Cham. https://doi.org/10.1007/978-3-319-28808-6_7
Download citation
DOI: https://doi.org/10.1007/978-3-319-28808-6_7
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-28807-9
Online ISBN: 978-3-319-28808-6
eBook Packages: EngineeringEngineering (R0)