Notes on Intuitionistic Fuzzy Sets

Aims & Scope

Having started in 1995, Notes on Intuitionistic Fuzzy Sets is the first and one of the leading scientific journals, exclusively publishing research in this field of science, as defined by the strict journal's scope and Editorial policy.

Created in 1983 in Bulgaria by Prof.

Krassimir Atanassov, the area of intuitionistic fuzzy sets has gained worldwide popularity and today it is being investigated by many international research groups from universities and research centres in Australia, Belgium, China, Greece, India, Morocco, Poland, Portugal, Romania, Slovakia, Spain, Turkey, United Kingdom, and other countries.

Metrics & Ranking

Abstracting & Indexing

Journal is indexed in leading academic databases, ensuring global visibility and accessibility of our peer-reviewed research.

• Scopus
• Google Scholar
• Directory of Open Access Journals (DOAJ)

Subjects & Keywords

Journal’s research areas, covering key disciplines and specialized sub-topics in Computer Science, Decision Sciences, Engineering and Mathematics, designed to support cutting-edge academic discovery.

Licensing & Copyright

This journal operates under an Open Access model. Articles are freely accessible to the public immediately upon publication. The content is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0), allowing users to share and adapt the work with proper attribution.

Copyright remains with the author(s), and no permission is required for non-commercial use, provided the original source is cited.

Policy Links

This section provides access to essential policy documents, guidelines, and resources related to the journal’s publication and submission processes.

• Aims scope
• Homepage
• Oa statement
• Author instructions
• License terms
• Review url
• Board url
• Copyright url
• Plagiarism url
• Apc url
• License

Plagiarism Policy

This journal follows a plagiarism policy. All submitted manuscripts are screened using reliable plagiarism detection software to ensure originality and academic integrity. Authors are responsible for proper citation and acknowledgment of all sources, and any form of plagiarism, including self-plagiarism, will not be tolerated.

For more details, please refer to our official: Plagiarism Policy.

Most Cited Articles

The Most Cited Articles section features the journal's most impactful research, based on citation counts. These articles have been referenced frequently by other researchers, indicating their significant contribution to their respective fields.

• Circular intuitionistic fuzzy TOPSIS method with vague membership functions: Supplier selection application context

  Citation: 69

  Authors: Cengiz, NurÅŸah

• Intuitionistic fuzzy modal operators of second type over interval-valued intuitionistic fuzzy sets. Part 2

  Citation: 55

  Authors: Krassimir T.

• Computational complexity and influence of numerical precision on the results of intercriteria analysis in the decision making process

  Citation: 15

  Authors: Vassia, Olympia

• The Cauchy problem for intuitionistic fuzzy differential equations

  Citation: 12

  Authors: Bouchra, Said, Lalla Saadia

• Knowledge discovery from data: InterCriteria Analysis of mutation rate influence

  Citation: 10

  Authors: Olympia, Dafina

• Solution of n-th order intuitionistic fuzzy differential equation by variational iteration method

  Citation: 10

  Authors: S., H., B., L. S.

• Improved intuitionistic fuzzy composite relation and its application to medical diagnostic process

  Citation: 9

  Authors: P. A., B. O.

• On interval-valued intuitionistic fuzzy modal operators

  Citation: 9

  Authors: Krassimir

• Interval-valued intuitionistic fuzzy graphs

  Citation: 8

  Authors: Krassimir

• System of intuitionistic fuzzy differential equations with intuitionistic fuzzy initial values

  Citation: 7

  Authors: Ömer, Selami