| 2021 | Graded Fuzzy Preconcept Lattices: Theoretical Basis. | Alexander P. Sostak, Ingrida Uljane, Maris Krastins |
| 2021 | Aggregation of Operators of Fuzzy Relational Mathematical Morphology: Erosion and Dilation. | Alexander P. Sostak, Ingrida Uljane |
| 2021 | On Quotient Structures of Fuzzy Multiset Finite Automata. | Anand Pratap Singh, M. K. Dubey, Irina Perfilieva |
| 2021 | Extending Representability on the Set of Intervals Endowed with Admissible Orders for the Construction of Interval-valued Fuzzy Operators. | Lidiane Costa da Silva, Guilherme Bayer Schneider, Bruna Freitas, Adenauer C. Yamin, Hlida S. Santos, Benjamn R. C. Bedregal, Renata Reiser |
| 2021 | Some Remarks on Convolution of Collection Integrals. | Adam Seliga |
| 2021 | A Comparative Analysis Based on GIS and Fuzzy MCDM Approaches. | Juan Miguel Snchez-Lozano, Adela Ramos-Escudero, Isabel C. Gil-Garca, Maria Socorro Garca-Cascales, ngel Molina-Garca |
| 2021 | Machine-imitative Learning by Using Computational Perceptions as Labeled Data-sets: A First Empirical Approximation. | Clemente Rubio-Manzano, Toms Lermanda, Claudia Martinez, Alejandra Segura, Christian L. Vidal |
| 2021 | Audio Surveillance of Road Traffic: An Approach Based on Anomaly Detection and Interval Type-2 Fuzzy Sets. | Stefano Rovetta, Zied Mnasri, Francesco Masulli, Alberto Cabri |
| 2021 | The Borda Count as an Initial Threshold for Kemeny Ranking Aggregation. | Noelia Rico, Camino R. Vela, Ral Prez-Fernndez, Irene Daz |
| 2021 | Fuzzifying Geospatial Data to Identify Critical Traffic Areas. | Jhonny Pincay, Edy Portmann, Luis Tern |
| 2021 | Untitled record | Tam Pham, Irina Perfilieva |
| 2021 | Extreme Points of Polytopes of Discrete Copulas. | Elisa Perrone, Fabrizio Durante |
| 2021 | Fuzzy Partitions and Multi-Scale Representation of 1D Data. | Irina Perfilieva, David Adamczyk |
| 2021 | On a Graded Version of Stochastic Dominance. | Ral Prez-Fernndez, Juan Baz, Irene Daz, Susana Montes |
| 2021 | Against Artificial Complexification: Crisp vs. Fuzzy Information in the TOPSIS Method. | David A. Pelta, Mara T. Lamata, Jos L. Verdegay, Carlos Cruz, Ana Salas |
| 2021 | Discovery of Pairwise Ordinal Edit Rules. | Milan Peelman, Antoon Bronselaer, Guy De Tr |
| 2021 | Closure Systems as a Fuzzy Extension of Meet-subsemilattices. | Manuel Ojeda-Hernndez, Inma P. Cabrera, Pablo Cordero, Emilio Muoz-Velasco |
| 2021 | Measuring the Environmental Cost in the Evaluation of Metaheuristics. | Pavel Novoa-Hernndez, Amilkar Puris, David A. Pelta |
| 2021 | Linear Regression Approach to Fuzzy Cognitive Maps with History Data. | Vesa A. Niskanen |
| 2021 | Order Based on Non-Associative Operations. | Kavit Nanavati, Balasubramaniam Jayaram |
| 2021 | Generalized Peterson's Rules in Fuzzy Natural Logic. | Petra Murinov, Viktor Pavliska, Michal Burda |
| 2021 | Generalized Peterson's Syllogisms with the Quantifier "At Least Several (A Few; A Little)". | Petra Murinov, Vilm Novk |
| 2021 | An Overview of Graded Structures of Opposition with Intermediate Quantifiers. | Petra Murinov |
| 2021 | Monadic Power Set Theories in Kleisli Categories. | Jir Mockor |
| 2021 | On Some Functional Equations Related to Alpha Migrative t-conorms. | Katarzyna Mis, Michal Baczynski |