Romanian Journal of Information Science and Technology (ROMJIST)

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ROMJIST is a publication of Romanian Academy,
Section for Information Science and Technology

Editor – in – Chief:
Academician Dan Dascalu

Secretariate (office):
Adriana Neagu
Adress for correspondence: romjist@nano-link.net (after 1st of January, 2019)

Editing of the printed version: Mihaela Marian (Publishing House of the Romanian Academy, Bucharest)

Editing of the on-line version: Lucian Milea (University POLITEHNICA of Bucharest)

Sponsors:
• National Institute for R & D
in Microtechnologies
(IMT Bucharest), www.imt.ro
• Association for Generic
and Industrial Technologies (ASTEGI), www.astegi.ro

ROMJIST Volume 21, No. 4, 2018, pp. 328-343, Paper no. 605/2018
 

Kexing ZHAO, Xianjiu HUANG
An extension of ELECTRE to multi-criteria decision making problems with extended hesitant fuzzy sets

ABSTRACT: Extended hesitant fuzzy sets (EHFSs), which are an extension of hesitant fuzzy sets, consider possible value-groups for the membership of X into the set A and increase the richness of numerical representation based on the value-groups. Extended hesitant fuzzy set is a very useful tool in handling decision making problems, due to it can identify different decision makers (DMs) in decision making. Some extended hesitant fuzzy elements (EHFEs) aggregation operators are proposed. In this paper, the dominance relation and opposition relation for EHFEs which based on traditional ELECTRE methods are introduced and the method for comparing EHFEs is proposed. To extend EHFSs to multi-criteria decision making, we proposed an outranking approach which is similar to ELECTRE III, and the data of outranking approach is in the form of EHFEs. Then, we combine the propose method with the proposed outranking approach to ranking alternatives in multi-criteria decision making. Finally, an example is given to illustrate the developed approach.

KEYWORDS: Extended hesitant fuzzy set, extended hesitant fuzzy elements, ELECTRE III, outranking approach, multi-criteria decision making

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