Characterization and computation of approximate bisimulations for fuzzy automata

I Micić, LA Nguyen, S Stanimirović - Fuzzy Sets and Systems, 2022 - Elsevier
Approximate bisimulations for fuzzy automata have recently drawn attention of researches,
since they allow to correlate different fuzzy automata which behave equivalently only to the …

On the solvability of weakly linear systems of fuzzy relation equations☆

S Stanimirović, I Micić - Information Sciences, 2022 - Elsevier
Abstract Systems of fuzzy relation equations and inequalities in which an unknown fuzzy
relation is on the one side of the equation or inequality are linear systems. They are the most …

Two-mode weakly linear systems of fuzzy relation equations: Structures of solutions, computation methods, and applications

I Stanković, Z Jančić, M Ćirić, I Micić, S Stanimirović - Information Sciences, 2025 - Elsevier
The problem of aggregating large fuzzy relational structures is of major importance. One of
the main issues is seeking a simpler fuzzy relational structure, while keeping the structure …

Fuzzy relation equations and subsystems of fuzzy transition systems

J Ignjatović, M Ćirić, V Simović - Knowledge-Based Systems, 2013 - Elsevier
In this paper we study subsystems, reverse subsystems and double subsystems of a fuzzy
transition system. We characterize them in terms of fuzzy relation inequalities and equations …

[HTML][HTML] Logical characterizations of regular equivalence in weighted social networks

TF Fan, CJ Liau - Artificial Intelligence, 2014 - Elsevier
Social network analysis is a methodology used extensively in social science. Classical
social networks can only represent the qualitative relationships between actors, but …

Computation of the greatest right and left invariant fuzzy quasi-orders and fuzzy equivalences

I Micić, Z Jančić, S Stanimirović - Fuzzy Sets and Systems, 2018 - Elsevier
Right invariant fuzzy quasi-orders for fuzzy automata are broadly studied in the recent
literature, as they arise as solutions to particular systems of fuzzy relation equations and …

Fuzzy relational inequalities and equations, fuzzy quasi-orders, closures and openings of fuzzy sets

J Ignjatović, M Ćirić, B Šešelja, A Tepavčević - Fuzzy Sets and Systems, 2015 - Elsevier
The paper deals with systems of fuzzy relation equations known in the literature as eigen
fuzzy set equations, as well as with systems of related fuzzy relation inequalities. Our main …

Approximate positional analysis of fuzzy social networks

I Micić, S Stanimirović, Z Jančić - Fuzzy Sets and Systems, 2023 - Elsevier
In order to facilitate the processing of vast amounts of data that emerges in the study of fuzzy
social networks, scholars have developed various procedures for reducing these networks …

Bisimulations in fuzzy social network analysis

J Ignjatovic, M Ciric, I Stankovic - 2015 Conference of the …, 2015 - atlantis-press.com
In this paper we introduce two types of simulations and five types of bisimulations for fuzzy
social networks, and we study one of them–regular bisimulations. We prove that if there …

Weak bisimulations for fuzzy automata

I Jančić - Fuzzy Sets and Systems, 2014 - Elsevier
Forward and backward bisimulations have been introduced recently by Ćirić et al.(2012)[9]
as a means for modeling the equivalence between states of fuzzy automata and …