Now showing items 1-9 of 9

    • A novel fuzzy TOPSIS method using emerging interval-valued spherical fuzzy sets 

      Kutlu Gündoğdu, Fatma; Kahraman, Cengiz (2019-06-03)
      All the extensions of ordinary fuzzy sets with three-dimensional membership functions such as intuitionistic fuzzy sets, second type intuitionistic fuzzy sets (or Pythagorean fuzzy sets) and neutrosophic sets aim at defining ...
    • A novel spherical fuzzy analytic hierarchy process and its renewable energy application 

      Kutlu Gündoğdu Fatma; Kahraman, Cengiz (2020-03-01)
      The extensions of ordinary fuzzy sets such as intuitionistic fuzzy sets, Pythagorean fuzzy sets, and neutrosophic sets, whose membership functions are based on three dimensions, aim at collecting experts’ judgments more ...
    • A novel VIKOR method using spherical fuzzy sets and its application to warehouse site selection 

      Kutlu Gündoğdu, Fatma; Kahraman, Cengiz (2019)
      The extensions of ordinary fuzzy sets such as intuitionistic fuzzy sets (IFS), Pythagorean fuzzy sets (PFS), and neutrosophic sets (NS), whose membership functions are based on three dimensions, aim at collecting experts' ...
    • Extension of WASPAS with spherical fuzzy sets 

      Gündoğdu, Fatma Kutlu; Kahraman, Cengiz (2019)
      The 3D extensions of ordinary fuzzy sets such as intuitionistic fuzzy sets (IFS), Pythagorean fuzzy sets (PFS), and neutrosophic sets (NS) aim to describe experts’ judgments more informatively and explicitly. In this paper, ...
    • From 1D to 3D Membership:Sphericalfuzzy Sets 

      Kutlu Gündoğdu, Fatma; Kahraman, Cengiz (2019-09)
      All the extensions of ordinary fuzzy sets with three dimensional membership functions such as intuitionistic fuzzy sets (IFS), Pythagorean fuzzy sets (PFS), and neutrosophic fuzzy sets (NFS) aim at defining the judgments ...
    • Principals of Spherical Fuzzy Sets 

      Kutlu Gündoğdu, Fatma (2019-07)
      The 3D extensions of ordinary fuzzy sets such as intuitionistic fuzzy sets (IFS). Pythagorean fuzzy sets (PFS). and neutrosophic sets (NS) aim to de­ scribe experts' judgments more informatively and explicitly. Introduction ...
    • Spherical fuzzy analytic hierarchy process (AHP) and its application to industrial robot selection 

      Kutlu Gündoğdu, Fatma; Kahraman, Cengiz (2019-07)
      The extensions of ordinary fuzzy sets such as intuitionistic fuzzv sets (IFS). Pythagorean fuzzy sets (PFS). and neutrosophic sets (NS). whose mem­ bership functions are based on three dimensions, aim at collecting experts' ...
    • Spherical fuzzy sets and spherical fuzzy TOPSIS method 

      Kutlu Gündoğdu, Fatma; Cengiz, Kahraman (Journal of Intelligent Fuzzy Systems, 2019)
      All the extensions of ordinary fuzzy sets with three dimensional membership functions such as intuitionistic fuzzy sets (IFS), intuitionistic fuzzy sets of second type (IFS2), and neutrosophic fuzzy sets (NFS) aim at ...
    • Spherical fuzzy VIKOR method and Its application to waste management 

      Kutlu Gündoğdu, Fatma; Kahraman, Cengiz; Karaşan, Ali (2019-07)
      The extensions of ordinary fuzzy sets such as intuitionistic fuzzy sets (IFS). Pythagorean fuzzy sets (PFS). and neutrosopliic sets (NS). whose mem­ bership functions are based on three dimensions, aim at collecting experts’ ...