The International Journal of Fuzzy Systems (IJFS) is an official journal of Taiwan Fuzzy Systems Association (TFSA) and is published semi-quarterly. IJFS will consider high quality papers that deal with the theory, design, and application of fuzzy systems, soft computing systems, grey systems, and extension theory systems ranging from hardware to software. Survey and expository submissions are also welcome.
  • Official journal of Taiwan Fuzzy Systems Association (TFSA)
  • Serves as a popular forum for researchers interested in all kinds of fuzzy related research
  • Publishes regular paper, review, survey, and expository essay

Journal information

Editor-in-Chief
  • Shun-Feng Su
Publishing model
Hybrid. Open Access options available

Journal metrics

4.406 (2019)
Impact factor
3.679 (2019)
Five year impact factor
53 days
Submission to first decision
213 days
Submission to acceptance
59,461 (2019)
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This journal has 12 open access articles

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About this journal

Electronic ISSN
2199-3211
Print ISSN
1562-2479
Abstracted and indexed in
  1. CNKI
  2. Dimensions
  3. EBSCO Discovery Service
  4. EI Compendex
  5. Google Scholar
  6. INSPEC
  7. Institute of Scientific and Technical Information of China
  8. Japanese Science and Technology Agency (JST)
  9. Journal Citation Reports/Science Edition
  10. Mathematical Reviews
  11. Naver
  12. OCLC WorldCat Discovery Service
  13. ProQuest Central
  14. ProQuest Engineering
  15. ProQuest Materials Science and Engineering Database
  16. ProQuest SciTech Premium Collection
  17. ProQuest Technology Collection
  18. ProQuest-ExLibris Primo
  19. ProQuest-ExLibris Summon
  20. SCImago
  21. SCOPUS
  22. Science Citation Index Expanded (SciSearch)
  23. UGC-CARE List (India)
  24. WTI Frankfurt eG
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