Open Call for Papers: 29th International Conference on Intuitionistic Fuzzy Sets • 6–7 November 2026 • Sofia, Bulgaria / Online
NEW EXTENDED deadline for submissions: 15 AUGUST 2026.

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16:10, 17 May 2017 NIFS-23-1-21-30.pdf (file) 170 KB Peter Vassilev (talk | contribs) {{upload | description = On separation axioms in temporal intuitionistic fuzzy Šostak topology | author = Fatih Kutlu | source = [[Notes on Intuitionistic Fuzzy S... 1
16:09, 17 May 2017 NIFS-23-1-14-20.pdf (file) 126 KB Peter Vassilev (talk | contribs) {{upload | description = Intuitionistic fuzzy implication →<sub>189</sub> | author = Lilija Atanassova | source = Notes on Intuitionistic Fuzzy Sets/23/1 | date = 2107 | license = | oth... 1
16:08, 17 May 2017 NIFS-23-1-06-13.pdf (file) 146 KB Peter Vassilev (talk | contribs) {{upload | description = Intuitionistic fuzzy implication →<sub>188</sub> | author = Krassimir Atanassov, Eulalia Szmidt and Janusz Kacprzyk | source = [[Notes on Intuitionistic Fuzzy... 1
16:07, 17 May 2017 NIFS-23-1-01-05.pdf (file) 161 KB Peter Vassilev (talk | contribs) {{upload | description = Universal algebra in intuitionistic fuzzy set theory | author = Gökhan Çuvalcioğlu and Sinem Tarsuslu (Yilmaz) | source = [[Notes on Intuitionistic Fuzzy Se... 1
13:20, 10 April 2017 Intuitionistic-fuzzy-logics-2017-cover.jpg (file) 14 KB Vassia Atanassova (talk | contribs) {{upload | description = Book cover of Intuitionistic Fuzzy Logics | author = Krassimir Atanassov | source = Springer | date = 2017 | license = | other-version = }} Category:Book covers 1
19:03, 2 March 2017 NIFS-12-3-30-34.pdf (file) 4.07 MB Vassia Atanassova (talk | contribs) {{upload | description = Online consultations system with intuitionistic fuzzy estimations |author = Daniela Orozova, Teodor Tzhechev | source = [[Notes on Intuitio... 2
19:02, 2 March 2017 NIFS-12-3-41-45.pdf (file) 2.24 MB Vassia Atanassova (talk | contribs) {{upload | description = [[Issue:Generalized net modelling of the process of introducing new product то the market and intuitionistic fuzzy estimating its effectiveness|Generalized net modelling of the process of introducing new product то the mar... 1
19:00, 2 March 2017 NIFS-12-3-46-54.pdf (file) 5.22 MB Vassia Atanassova (talk | contribs) {{upload | description = Issue:The cubes' magic and their application in different fields of science | author = Ivanka Valova | source = Notes on Intuitionistic Fuzzy Sets/12/3 | date = 2006 | license = | other-version = }} [[Cate... 1
18:59, 2 March 2017 NIFS-12-3-60-68.pdf (file) 6.06 MB Vassia Atanassova (talk | contribs) {{upload | description = Issue:System for electronic student-teacher interactions with intuitionistic fuzzy estimations | author = Anthony Shannon, Desislava Peneva, Elia El-Darzi, Krassimir Atanassov, Panagiotis Chountas, [[... 1
16:04, 1 March 2017 NIFS-online-availability-pie-2017-02.png (file) 9 KB Vassia Atanassova (talk | contribs)   2
16:01, 1 March 2017 NIFS-online-availability-2017-02.png (file) 16 KB Vassia Atanassova (talk | contribs) Category: Notes on IFS performance graphs 1
15:47, 1 March 2017 NIFS-outreach-SCOPUS-2017-02.png (file) 20 KB Vassia Atanassova (talk | contribs) Category:Notes on IFS performance graphs 1
11:06, 28 February 2017 NIFS-13-2-088-100.pdf (file) 8.73 MB Vassia Atanassova (talk | contribs) {{upload | description = Intuitionistic fuzzy knowledge-based OLAP | author = Ermir Rogova, Panagiotis Chountas, Boyan Kolev | source = Notes on Intuitionistic Fuzzy Sets/13/2 | da... 1
11:05, 28 February 2017 NIFS-13-2-081-087.pdf (file) 4.12 MB Vassia Atanassova (talk | contribs) {{upload | description = System for electronic student-teacher interactions with intuitionistic fuzzy estimations | author = Anthony Shannon, [[Dan... 1
11:04, 28 February 2017 NIFS-13-2-071-080.pdf (file) 6.18 MB Vassia Atanassova (talk | contribs) {{upload | description = [[Issue:Generalized net modelling of workflow in tasks processing and tracking systems using intuitionistic fuzzy estimations|Generalized net modelling of workflow in tasks processing and tracking systems using intuitionistic... 1
11:03, 28 February 2017 NIFS-13-2-061-070.pdf (file) 4.78 MB Vassia Atanassova (talk | contribs) {{upload | description = Generalized net model of algorithm for intuitionistic fuzzy estimations | author = Peter Georgiev, Lyudmila Todorova, [[Peter Vassilev]... 1
11:02, 28 February 2017 NIFS-13-2-048-053.pdf (file) 3.21 MB Vassia Atanassova (talk | contribs) Reverted to version as of 09:00, 28 February 2017 2
11:01, 28 February 2017 NIFS-13-2-054-060.pdf (file) 4.2 MB Vassia Atanassova (talk | contribs) {{upload | description = [[Issue:Generalized net for control and optimization of real processes through neural networks using intuitionistic fuzzy estimations|Generalized net for control and optimization of real processes through neural networks using... 1
16:27, 23 February 2017 NIFS-13-2-039-041.pdf (file) 1.04 MB Vassia Atanassova (talk | contribs) {{upload | description = On exponential and logarithmic functions on IF sets | author = Ivana Hollá | source = Notes on Intuitionistic Fuzzy Sets/13/2 | date = 2007 | license =... 1
16:23, 23 February 2017 NIFS-13-2-036-038.pdf (file) 1.09 MB Vassia Atanassova (talk | contribs) {{upload | description = On probabilities on IF-sets and MV-algebras | author = Vladislav Biba | source = Notes on Intuitionistic Fuzzy Sets/13/2 | date = 2007 | license = | other-ver... 1
16:20, 23 February 2017 NIFS-13-2-030-035.pdf (file) 2.55 MB Vassia Atanassova (talk | contribs) {{upload | description = Laws of large numbers for M-observables | author = Petra Mazureková | source = Notes on Intuitionistic Fuzzy Sets/13/2 | date = 2007 | license = | other-version... 1
16:13, 23 February 2017 NIFS-13-2-023-029.pdf (file) 2.74 MB Vassia Atanassova (talk | contribs) {{upload | description = [[Issue:On the probability theory of IF-events |On the probability theory of IF-events ]] | author = Beloslav Riečan | source = Notes on Intuitionistic Fuzzy Sets/13/2 | date = 2007 | license = | other-version =... 1
23:17, 12 February 2017 Issues-12 139-149.pdf (file) 1,009 KB Vassia Atanassova (talk | contribs)   2
18:37, 3 February 2017 Issues-12 150-155.pdf (file) 175 KB Vassia Atanassova (talk | contribs) {{upload |description = Generalized Net Model of the Microcontroller Operation |author = Lenko Erbakanov, Sotir Sotirov, Wolfram Hardt | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} [[Categ... 1
18:36, 3 February 2017 Issues-12 129-138.pdf (file) 403 KB Vassia Atanassova (talk | contribs) {{upload |description = Generalized Net Model for Information Encryption by Chua and Neural Networks |author = Stanimir Surchev, Sotir Sotirov, Maciej Krawczak | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12... 1
18:36, 3 February 2017 Issues-12 114-128.pdf (file) 178 KB Vassia Atanassova (talk | contribs) {{upload |description = Generalized Net Model for the Diagnosis of Asymptomatic Osteoporosis |author = Velin Andonov, Simeon Ribagin | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} [[Category:PDF... 1
18:35, 3 February 2017 Issues-12 93-113.pdf (file) 199 KB Vassia Atanassova (talk | contribs) {{upload |description = Generalized Net API |author = Nora Angelova, Dimitar Dimitrov | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} Category:PDF files 1
18:35, 3 February 2017 Issues-12 80-92.pdf (file) 218 KB Vassia Atanassova (talk | contribs) {{upload |description = Implementation of the Reducing Operators over Generalized Nets in GN IDE |author = Nora Angelova, Dafina Zoteva | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} [[Category... 1
18:35, 3 February 2017 Issues-12 68-79.pdf (file) 245 KB Vassia Atanassova (talk | contribs) {{upload |description = Project-Based Learning Modelled with a Generalized Net |author = Daniela Orozova, Maciej Krawczak | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} Category:PDF files 1
18:34, 3 February 2017 Issues-12 61-67.pdf (file) 159 KB Vassia Atanassova (talk | contribs) {{upload |description = Remark on Dworniczak’s Intuitionistic Fuzzy Implications. Part 2 |author = Lilija Atanassova | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} Category:PDF files 1
18:34, 3 February 2017 Issues-12 53-60.pdf (file) 123 KB Vassia Atanassova (talk | contribs) {{upload |description = On Intuitionistic Fuzzy Negations, Law for Excluded Middle and De Morgan’s Laws |author = Krassimir Atanassov, Nora Angelova | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 20... 1
18:34, 3 February 2017 Issues-12 39-52.pdf (file) 479 KB Vassia Atanassova (talk | contribs) {{upload |description = InterCriteria Analysis in Structural and Parameter Identification of L-lysine Production Model |author = Tatiana Ilkova, Olympia Roeva, Peter Vassilev, Mitko Petrov | source = [[Issues in Intuitionistic Fuzz... 1
18:33, 3 February 2017 Issues-12 20-38.pdf (file) 1.08 MB Vassia Atanassova (talk | contribs) {{upload |description = InterCriteria Analysis of Ant Colony Optimization Application to GPS Surveying Problems |author = Stefka Fidanova, Olympia Roeva, Marcin Paprzycki | source = [[Issues in Intuitionistic Fuzzy Sets and Generalized... 1
18:32, 3 February 2017 Issues-12 1-19.pdf (file) 169 KB Vassia Atanassova (talk | contribs) {{upload |description = On Intuitionistic Fuzzy Implications |author = Krassimir Atanassov | source = Issues in Intuitionistic Fuzzy Sets and Generalized Nets/12 | date = 2016 }} Category:PDF files 1
11:48, 17 January 2017 NIFS-22-5-12-18.pdf (file) 134 KB Vassia Atanassova (talk | contribs)   2
17:45, 16 January 2017 NIFS-22-5-111-121.pdf (file) 170 KB Peter Vassilev (talk | contribs) {{upload | description = Extended temporal intuitionistic fuzzy index matrices | author = Krassimir Atanassov | source = Notes on Intuitionistic Fuzzy Sets/22/5 | date = 2016 | li... 1
17:42, 16 January 2017 NIFS-22-5-84-97.pdf (file) 150 KB Peter Vassilev (talk | contribs) {{upload | description = An introduction to intuitionistic L-fuzzy semi-primary ideals | author = P. Veerammal and M. Palanivelrajan | source = [[Notes on Intuitionistic Fuzzy S... 1
17:41, 16 January 2017 NIFS-22-5-72-83.pdf (file) 176 KB Peter Vassilev (talk | contribs) {{upload | description = Norms over intuitionistic fuzzy subrings and ideals of a ring | author = Rasul Rasuli | source = Notes on Intuitionistic Fuzzy Sets/22/5 | date = 2... 1
17:39, 16 January 2017 NIFS-22-5-63-71.pdf (file) 114 KB Peter Vassilev (talk | contribs) {{upload | description = Regular weakly generalized locally closed sets in intuitionistic fuzzy topological spaces | author = L. Senthil Kumar | sour... 1
17:37, 16 January 2017 NIFS-22-5-46-62.pdf (file) 255 KB Peter Vassilev (talk | contribs) {{upload | description = On compactness in temporal intuitionistic fuzzy Šostak topology | author = F. Kutlu, A. A. Ramadan and T. Bilgin | source = [[Notes on Intuitionisti... 1
17:36, 16 January 2017 NIFS-22-5-43-45.pdf (file) 111 KB Peter Vassilev (talk | contribs) {{upload | description = On the embedding of continuous states | author = Beloslav Riečan and Jaroslav Považan | source = Notes on Intuitionistic Fuzzy Sets/22/5 | date = 2016 | license = | ot... 1
17:34, 16 January 2017 NIFS-22-5-37-42.pdf (file) 194 KB Peter Vassilev (talk | contribs) {{upload | description = Some relationships between new intuitionistic fuzzy modal operators | author = Sinem Tarsuslu (Yilmaz), Vassia Atanassova, Krassimir Atanassov and... 1
17:32, 16 January 2017 NIFS-22-5-27-36.pdf (file) 154 KB Peter Vassilev (talk | contribs) {{upload | description = On intuitionistic fuzzy modal operators | author = Sinem Yilmaz and Gökhan Çuvalcioğlu | source = Notes on Intuitionistic Fuzzy Sets/22/5 | date = 2016 | license =... 1
17:30, 16 January 2017 NIFS-22-5-19-26.pdf (file) 174 KB Peter Vassilev (talk | contribs) {{upload | description = Defuzzification of intuitionistic fuzzy sets | author = C. Radhika and R. Parvathi | source = Notes on Intuitionistic Fuzzy Sets/22/5 | date = 2016 | license = |... 1
17:26, 16 January 2017 NIFS-22-5-01-11.pdf (file) 136 KB Peter Vassilev (talk | contribs) {{upload | description = Intuitionistic fuzzy logic is not always equivalent to interval-valued one | author = Christian Servin and Vladik Kreinovich | source = [[... 1
12:26, 12 January 2017 NIFS-22-3-091-105.pdf (file) 142 KB Vassia Atanassova (talk | contribs)   2
11:57, 3 January 2017 21-ICIFS-2017-1CFP.pdf (file) 47 KB Vassia Atanassova (talk | contribs)   1
19:08, 30 December 2016 NIFS-22-4-75-79.pdf (file) 123 KB Vassia Atanassova (talk | contribs)   2
18:51, 30 December 2016 NIFS-22-4-80-88.pdf (file) 203 KB Vassia Atanassova (talk | contribs) {{upload | description = Isomorphism theorems for intuitionistic fuzzy submodules of G-modules | author = P. K. Sharma | source = [[Notes on Intuitionistic Fuzzy Set... 1
18:50, 30 December 2016 NIFS-22-4-64-74.pdf (file) 277 KB Vassia Atanassova (talk | contribs) {{upload | description = Fractional differential equations with intuitionistic fuzzy data | author = R. Ettoussi and L.S. Chadli | source = [[Notes on Intuitionistic... 1
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