8-9 October 2020 • Burgas, Bulgaria

Submission: 15 May 2020 • Notification: 31 May 2020 • Final Version: 15 June 2020


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17th International Conference on Intuitionistic Fuzzy Sets
November 1—2, 2013, Sofia, Bulgaria


Important dates

15 August 2013 — Submission of the draft versions of the papers
15 September 20123 — Notification of acceptance
15 October 2013 — Submission of registration form and the final versions
1 November 2013 — Registration at the Institute of Biophysics and Biomedical Engineering of the Bulgarian Academy of Sciences, Sofia

Aim and scope

The aim of the International Conference on Intuitionistic Fuzzy Sets is to gather specialists interested in intuitionistic fuzziness and to give them floor for discussions on theoretical and practical aspects of this relatively new area of fuzzy set theory.

All theoretical and applied results related to intuitionistic fuzziness are welcome.

Download the Call for papers.

Conference Chairs and Committee

Conference Chairs
Program Committee
Organizing Committee

Instructions to the authors

Papers should not exceed 8 A4 pages, one column, single spaced, margins: 160mm x 230mm, typeface Times New Roman, 12 pt. On the first page the authors should indicate their address and e-mail; an abstract, keywords and AMS Classification.

All papers accepted for presentation at ICIFS'2013 will be included in a special issue of the journal "Notes on Intuitionistic Fuzzy Sets". The special issue will be available at the registration.

Please send submissions or any correspondence related to the conference to:

Institute of Biophysics and Biomedical Engineering
Bulgarian Academy of Sciences
Bulgaria, Sofia-1113, P.O.Box 12, Krassimir Atanassov
E-mail: kratAt sign.pngbas.bg, k.t.atanassovAt sign.pnggmail.com


Registration fee: 200 Euro. The registration fee includes a copy of the proceedings, beverages at the coffee breaks, a conference dinner and a trip outside Sofia. The fee can be collected in cash at the registration.

Detailed information about the hotels, social programme, transportation as well as the participants in the previous conferences is to be given later.

Please register for the conference at your earliest convenience by sending back the completed registration form.


In October 2013, ICIFS was approved as an EUSFLAT-endorsed event. Other EUSFLAT-endorsed events are available here.

Programme and presentations

09:00 – 09:20 Krassimir Atanassov, Eulalia Szmidt, Janusz Kacprzyk
On intuitionistic fuzzy pairs
Download-icon.png PDF (342 Kb, Info) Download-icon.png
09:20 – 09:40 Beloslav Riečan
On the law of large numbers for IF-events
Download-icon.png PDF (175 Kb, Info) Download-icon.png
09:40 – 10:00 Peter Vassilev
On intuitionistic fuzzy subsets with diminishing hesitancy values
Download-icon.png PDF (191 Kb, Info) Download-icon.png
10:00 – 10:20 Alzbeta Michalíková
Taylor's theorem for functions, defined on Atanassov IF-sets
Download-icon.png PDF (194 Kb, Info) Download-icon.png
10:20 – 10:40 Coffee break
10:40 – 11:00 Vassia Atanassova
From fuzzy to intuitionistic fuzzy: Easy and lazy
Download-icon.png PPT (1091 Kb, Info) Download-icon.png
11:00 – 11:20 Evgeniy Marinov
On the operators and partial orderings of intuitionistic fuzzy sets
Download-icon.png PDF (321 Kb, Info) Download-icon.png
11:20 – 11:40 Roland Schütze
Intuitionistic fuzzy component failure impact analysis (IFCFIA)
Download-icon.png PDF (2018 Kb, Info) Download-icon.png
11:40 – 12:00 Beloslav Riečan, Adrian Ban, Krassimir Atanassov
Modifications of the weight-center operator, defined over intuitionistic fuzzy sets. Part 3
Download-icon.png PDF (243 Kb, Info) Download-icon.png
12:00 – 14:00 Lunch
14:00 – 14:20 Evdokia Sotirova, Veselina Bureva, Emilia Velizarova, Stefka Fidanova, Pencho Marinov, Anthony Shannon, Krassimir Atanassov
Hexagonal Game Method model of forest fire spread with intuitionistic fuzzy estimations
Download-icon.png PPT (1272 Kb, Info) Download-icon.png
14:20 – 14:40 Sotir Sotirov, Ivelina Vardeva, Maciej Krawczak
Intuitionistic fuzzy Multilayer Perceptron as a part of integrated systems for early forest-fire detection
Download-icon.png PDF (651 Kb, Info) Download-icon.png
14:40 – 15:00 Velin Andonov
Intuitionistic fuzzy generalized nets with characteristics of the places of Types 1 and 3
Download-icon.png PDF (251 Kb, Info) Download-icon.png
15:00 – 15:20 Lyubka Doukovska, George Shahpazov
Generalized net model of internal financial structural unit’s functionality with intuitionistic fuzzy estimations
15:20 – 15:40 Coffee break
15:40 – 16:30 Discussions on the establishment of an international Working Group on IFS and Related Topics to EUSFLAT