Banca de QUALIFICAÇÃO: SUENE CAMPOS DUARTE

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : SUENE CAMPOS DUARTE
DATE: 15/10/2021
TIME: 10:00
LOCAL: Virtual
TITLE:

Reversal Fuzzy Switch Graph


KEY WORDS:

Fuzzy Systems, Fuzzy Switch Graphs, Reversal Fuzzy Switch Graphs, Reactive Systems, Aggregation Functions.


PAGES: 96
BIG AREA: Ciências Exatas e da Terra
AREA: Ciência da Computação
SUBÁREA: Teoria da Computação
SPECIALTY: Lógicas e Semântica de Programas
SUMMARY:
A Fuzzy Switch Graph (FSG) is a reactive fuzzy graph introduced by Santiago et al. [1] that models systems in which accessibility relations and fuzzy values are changed whenever an edge is crossed.
This action occurs from the use of aggregation functions and relations between edges, called high-order arrows or switches. This work proposes a generalization of the FSGs called Reversal Fuzzy Switch Graph (RFSG). RFSGs model fuzzy reactive systems which provide the activation and deactivation of relations, a functionality that the FSGs do not offer. 

Activation and deactivation of edges in a switch graph makes its applicability wider in fields like computer science and engineerings. In this sense, some aggregation-based operations (union, intersection, Cartesian product and extension) for RFSGs are proposed. Such operations enable to understand the algebraic structure of RFSGs and allow to generate new models of systems from the previous one. 

This work also provides the relationship between RFSGs and fuzzy graphs, a logic to verify properties of the modelled system and closes with applications. The author is willing to investigate the logical invariance of the aggregation-based operations presented, define homomorfisms between RFSGs as the resulting category and establish the notion of RFSGs with fuzzy interval-valued. 
 
[1] Santiago, R.H., Martins,A.M., Figueiredo, D.: Introducing fuzzy reactive graphs: a simple application on Biology. Soft Computing (2020).  

BANKING MEMBERS:
Presidente - 1345816 - REGIVAN HUGO NUNES SANTIAGO
Interno - 2212166 - BENJAMIN RENE CALLEJAS BEDREGAL
Externo à Instituição - JORGE PETRUCIO VIANA - UFF
Notícia cadastrada em: 07/10/2021 10:49
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