The International Journal of Fuzzy Systems (IJFS) is an official journal of Taiwan Fuzzy Systems Association (TFSA) and is published 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.

國際模糊系統雜志（iJFS）是臺灣模糊系統協會（TFSA）的官方刊物，每季度出版一期。iJFS將考慮處理模糊系統、軟計算系統、灰色系統和從硬件到軟件的擴展理論系統的理論、設計和應用的高質量論文。也歡迎提交調查和說明材料。