Open Call for Papers:
29
th
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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11:40, 7 October 2025
NIFS-29-1-030-045.pdf
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263 KB
Vassia Atanassova
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corrected ISSN
2
11:38, 7 October 2025
NIFS-29-1-056-064.pdf
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714 KB
Vassia Atanassova
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corrected ISSN
2
11:33, 7 October 2025
NIFS-29-1-001-029.pdf
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715 KB
Vassia Atanassova
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corrected issn
2
22:14, 10 September 2025
NIFS-31-3-346-357.pdf
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223 KB
Vassia Atanassova
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updated orcids
2
14:02, 22 August 2025
NIFS-31-3-332-345.pdf
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350 KB
Vassia Atanassova
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== Summary == {{upload | description =
Evaluation and forecasting of technical conditions in complex systems using intuitionistic fuzzy logics
| author =
Toncho Ivanov Boyukov
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 3
, pages 332-345 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0...
1
12:02, 22 August 2025
NIFS-31-3-320-331.pdf
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234 KB
Vassia Atanassova
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== Summary == {{upload | description =
On the degree of intuitionistic fuzzy functions and its various classification degrees
| author =
Ümit Deniz
and
Neslihan Yılmaz
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 3
, pages 320-331 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | other-version =...
1
09:37, 14 August 2025
NIFS-31-3-305-319.pdf
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293 KB
Vassia Atanassova
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== Summary == {{upload | description =
On the (min,max)-transitivity of some intuitionistic fuzzy binary relations associated with probability distributions on pre-orders
| author =
Landry Ngibasona
,
Bertrand Mbama Engoulou
,
Louis Aimé Fono
| source = [[Notes on Intuitionistic Fuzzy Sets/31/3|Notes on Intuitionistic Fuzzy Sets, Volume 31...
1
07:58, 7 August 2025
DOAJ-logo.png
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5 KB
Vassia Atanassova
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{{upload | description = [https://doaj.org/ Logo of DOAJ - Directory of Open Access Journals] | author = Directory of Open Access Journals | source = https://commons.wikimedia.org/wiki/File:DOAJ_logo-colour.svg | date = 2021 | license = Public domain / trademarked | other-version = }}
1
12:03, 29 July 2025
NIFS-31-2-139-153.pdf
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268 KB
Vassia Atanassova
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corrected ISSN
2
11:59, 29 July 2025
NIFS-31-2-127-138.pdf
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265 KB
Vassia Atanassova
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corrected ISSN
2
11:56, 29 July 2025
NIFS-31-1-111-126.pdf
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375 KB
Vassia Atanassova
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corrected ISSN
3
11:53, 29 July 2025
NIFS-31-1-099-110.pdf
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195 KB
Vassia Atanassova
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corrected ISSN
2
11:51, 29 July 2025
NIFS-31-1-080-098.pdf
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245 KB
Vassia Atanassova
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corrected ISSN
2
11:48, 29 July 2025
NIFS-31-1-064-079.pdf
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231 KB
Vassia Atanassova
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corrected ISSN
2
11:45, 29 July 2025
NIFS-31-1-039-047.pdf
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192 KB
Vassia Atanassova
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corrected ISSN
3
11:41, 29 July 2025
NIFS-31-1-015-038.pdf
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247 KB
Vassia Atanassova
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corrected ISSN
3
11:39, 29 July 2025
NIFS-31-1-009-014.pdf
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178 KB
Vassia Atanassova
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corrected ISSN
3
11:36, 29 July 2025
NIFS-31-1-001-008.pdf
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213 KB
Vassia Atanassova
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corrected ISSN
3
08:27, 24 July 2025
NIFS-31-3-290-304.pdf
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255 KB
Vassia Atanassova
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== Summary == {{upload | description =
''R''<sub>1</sub> and level ''R''<sub>1</sub> separation axioms on intuitionistic fuzzy pairwise topological spaces using intuitionistic fuzzy open sets
| author =
Saikh Shahjahan Miah
,
Md. Hridoy Hasan
,
Ruhul Amin
,
Nigar Sultana
| source = [[Notes on Intuitionistic Fuzzy Sets/31/3|Notes on Intuitionistic...
1
17:01, 19 July 2025
NIFS-31-3-267-289.pdf
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375 KB
Vassia Atanassova
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== Summary == {{upload | description =
Intuitionistic fuzzy Laplace Adomian decomposition method for solving intuitionistic fuzzy differential equations of higher order
| author =
Razika Ettoussi
,
Said Melliani
and
Lalla Saadia Chadli
| source = [[Notes on Intuitionistic Fuzzy Sets/31/3|Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025),...
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11:24, 17 July 2025
NIFS-31-2-242-252.pdf
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178 KB
Vassia Atanassova
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KP-06-N72/8
2
05:40, 17 July 2025
NIFS-31-2-253-266.pdf
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746 KB
Vassia Atanassova
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== Summary == {{upload | description =
Issue:Some new extension principles for intuitionistic fuzzy sets
| author =
Mohammad Kamrul Hasan
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2
, pages 253-266 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | other-version = }}
Category:PDF files
1
09:36, 1 July 2025
NIFS-31-2-227-241.pdf
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253 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Issue:Issue:Triangular norm-based intuitionistic fuzzy BE-algebras and filters
| author =
Sinem Tarsuslu
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2
, pages 227-241 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | other-version = }}
Category:PDF files
1
17:33, 26 June 2025
NIFS-31-2-195-206.pdf
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788 KB
Vassia Atanassova
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contribs
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== Summary == {{upload | description =
(α,β)-Interval-valued intuitionistic fuzzy subgroups
| author =
Gökhan Çuvalcıoğlu
and
Arif Bal
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2
, pages 195-206 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | other-version = }}
Category:PDF files
1
15:55, 25 June 2025
NIFS-31-2-217-226.pdf
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202 KB
Vassia Atanassova
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contribs
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== Summary == {{upload | description =
Issue:Solving second order intuitionistic fuzzy differential equation by intuitionistic fuzzy Sumudu transform method
| author =
Razika Ettoussi
,
Said Melliani
and
Lalla Saadia Chadli
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2
, pages 217-226 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | other-version = }}
Category:PDF files
1
13:29, 25 June 2025
NIFS-31-2-207-216.pdf
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196 KB
Vassia Atanassova
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== Summary == {{upload | description =
Cartesian product of intuitionistic fuzzy subgroups
| author =
Saman Abdurrahman
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2
, pages 207-216 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | other-version = }}
Category:PDF files
1
14:07, 27 May 2025
NIFS-31-2-154-171.pdf
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file
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1.16 MB
Vassia Atanassova
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contribs
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== Summary == {{upload | description =
Issue:An extended framework for autocratic multi-parameter group decision making using interval-valued intuitionistic fuzzy numbers
| author =
Mousumi Akter
,
Sahadat Hossain
,
Fazlul Hoque
,
Rafiqul Islam
, nd
Nasimul Karim
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 31 (2025), Number 2
, pages 154-171 | date = 2025 | license = Creative Commons Attribution (CC BY 4.0) | othe...
1
21:51, 6 March 2025
NIFS-TeX-template-2025.zip
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file
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132 KB
Vassia Atanassova
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talk
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contribs
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Category:Notes on IFS
1
21:51, 6 March 2025
NIFS-Word-template-2025.zip
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file
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53 KB
Vassia Atanassova
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contribs
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Category:Notes on IFS
1
17:35, 6 March 2025
NIFS-31-1-048-063.pdf
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file
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1,013 KB
Vassia Atanassova
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contribs
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2
15:07, 6 March 2025
ORCID iD.svg.png
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1 KB
Vassia Atanassova
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contribs
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1
11:17, 18 December 2024
NIFS-30-4-368-373.pdf
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284 KB
Vassia Atanassova
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contribs
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2
20:58, 16 December 2024
NIFS-26-1-23-27.pdf
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file
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133 KB
Vassia Atanassova
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contribs
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Corrected typo in title (intitionistic > intuitionistic)
2
16:36, 16 December 2024
NIFS-30-4-323-332.pdf
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228 KB
Vassia Atanassova
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contribs
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1
14:58, 16 December 2024
NIFS-30-4-285-296.pdf
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file
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240 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Issue:Intuitionistic fuzzy temporal operators and temporal topological structures
| author =
Krassimir Atanassov
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 4
, pages 285-296 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
23:46, 13 December 2024
NIFS-30-4-349-367.pdf
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file
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302 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Issue:Solvability of an intuitionistic fuzzy fractional differential equation of second type
| author =
Hamid Sadiki
,
Khadija Oufkir
,
Aziz El Ghazouani
,
M'hamed Elomari
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 4
, pages 349-367 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
23:32, 13 December 2024
NIFS-30-4-309-322.pdf
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file
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229 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Issue:Intuitionistic fuzzy Nakayama’s Lemma
| author =
S. Achik
,
I. Bakhadach
,
M. Oukessou
,
S. Melliani
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 4
, pages 309-322 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
23:29, 13 December 2024
NIFS-30-4-333-348.pdf
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file
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229 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Issue:Comparison study based on the divergence measures between intuitionistic fuzzy sets and some applications
| author =
Vladimír Kobza
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 4
, pages 333-348 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
14:03, 13 December 2024
NIFS-30-4-297-308.pdf
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file
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291 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
On intuitionistic fuzzy chained modules
| author =
P. K. Sharma
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 4
, pages 297-308 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
13:40, 25 November 2024
NIFS-30-1-092-100.pdf
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file
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331 KB
Vassia Atanassova
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talk
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contribs
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correction on page 99
2
10:38, 27 October 2024
NIFS-30-3-260-284.pdf
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file
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251 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
A general approach to modal topological structures illustrated by intuitionistic fuzzy objects
| author =
Krassimir Atanassov
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 3
, pages 260-284 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
17:29, 19 October 2024
NIFS-30-3-242-259.pdf
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file
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2.35 MB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Analysis of hub parameters in fuzzy hypergraphs extending to intuitionistic fuzzy threshold hypergraphs: Applications in designing transport networks in amusement parks using hub hyperpaths
| author =
K. K. Myithili
,
C. Nandhini
| source = [[Notes...
1
15:13, 18 October 2024
NIFS-30-3-230-241.pdf
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file
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230 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Intuitionistic fuzzy normal bi-topological space-approach of intuitionistic fuzzy open sets
| author =
Saikh Shahjahan Miah
,
Jewel Miah
,
Ruhul Amin
,
Nigar Sultana
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 3
, pages 230-241 | date = 2024 | license = | other-ver...
1
17:55, 11 October 2024
NIFS-30-3-215-229.pdf
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file
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264 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Intuitionistic fuzzy evolution problem with nonlocal conditions
| author =
Hamid Sadiki
,
Khadija Oufkir
,
Said Melliani
,
M'hamed El Omari
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 3
, pages 215-229 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
16:46, 10 October 2024
NIFS-30-3-203-214.pdf
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file
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241 KB
Vassia Atanassova
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talk
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contribs
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== Summary == {{upload | description =
Issue:Zariski topology on the spectrum of intuitionistic fuzzy classical primary submodules
| author =
P. K. Sharma
| source =
Notes on Intuitionistic Fuzzy Sets, Volume 30 (2024), Number 3
, pages 203-214 | date = 2024 | license = CC-BY 4.0 | other-version = }}
Category:PDF files
1
15:31, 29 August 2024
NIFS-09-4-102-108.pdf
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file
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3.36 MB
Vassia Atanassova
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talk
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contribs
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{{upload | description =
A generalized net model of the process of face recognition with elements of intuitionistic fuzziness
| author =
Anthony Shannon
,
Georgi Gluhchev
,
Vasil Vasilev
,
Krassimir Atanassov
,
Stefan Hadjitodorov
| source =
"Notes on Intuitionistic Fuzzy Sets", Volume 9, Number 4
, Pages 102-108 | date =...
1
15:22, 29 August 2024
NIFS-09-4-114-122.pdf
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file
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5.04 MB
Vassia Atanassova
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talk
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contribs
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{{upload | description =
Temporal aspects of web log analysis
| author =
Ilias Petrounias
,
Ahmed Aburodes Assaid Elkilany
,
Panagiotis Chountas
,
Boyan Kolev
| source =
"Notes on Intuitionistic Fuzzy Sets", Volume 9, Number 4
, Pages 114-122 | date = 2003 | license = | other-version = }}
Category:PDF files
1
15:09, 29 August 2024
NIFS-09-4-123-128.pdf
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file
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3.62 MB
Vassia Atanassova
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talk
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contribs
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{{upload | description =
Generalized net model of the intranet in a university, using intuitionistic fuzzy estimations
| author =
Anthony Shannon
,
Daniela Orozova
,
Dimitar Sasselov
,
Evdokia Sotirova
,
Ilias Petrounias
,
Krassimir Atanassov
,
Maciej Krawczak
,
Pedro Melo-Pinto
,
Seog-Hoon Rim
,
Taekyun Kim
| source = [[Notes on Intuitionistic Fuzzy Sets/0...
1
15:01, 29 August 2024
NIFS-09-4-140-150.pdf
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file
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5.31 MB
Vassia Atanassova
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talk
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contribs
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{{upload | description =
Intuitionistic fuzzy generalized net models of the elements of a system for softened water production
| author =
Joanna Alexieva
,
Boyan Kolev
| source =
"Notes on Intuitionistic Fuzzy Sets", Volume 9, Number 4
, Pages 140-150 | date = 2003 | license = | other-version = }}
Category:PDF files
1
14:50, 29 August 2024
NIFS-09-4-077-082.pdf
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file
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3.27 MB
Vassia Atanassova
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talk
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contribs
)
{{upload | description =
A note on intuitionistic fuzzy routing
| author =
Channappa Akki
,
Ranjit Biswas
| source =
"Notes on Intuitionistic Fuzzy Sets", Volume 9, Number 4
, Pages 77-82 | date = 2003 | license = | other-version = }}
Category:PDF files
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