International Journal of Neutrosophic Science IJNS 2690-6805 2692-6148 10.54216/IJNS https://www.americaspg.com/journals/show/2534 2020 2020 Department of Mathematics, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai-602105, India admin admin Department of CDC, College of Engineering and Technology, SRM Institute of Science and Technology, Kattankulathur, 603203,Tamilnadu, India G. Manikandan Department of Mathematics, St. Joseph’s Institute of Technology, OMR, Chennai-600119, India T. T. Raman Department of Mathematics, Bharath Institute of Higher Education and Research, Chennai-600073, India K. Arulmozhi Fuzzy Algebras and Decision-Making Problems Research Unit, Department of Mathematics, School of Science, University of Phayao, 19 Moo 2, Tambon Mae Ka, Amphur Mueang, Phayao 56000, Thailand Aiyared Iampan In this study, the theory of the Type-II q-rung neutrosophic interval valued soft set (Type-II q-rung NIVS) is introduced. We also define a few operations based on the Type-II q-rung NIVS set. Type-II q-rung NIVS sets are formed by extending neutrosophic interval valued soft (NIVS) sets and q-rung fuzzy soft sets. Type-II q-rung NIVS sets and their similarity measures. An illustrative example illustrates how they can be used to successfully address uncertainty-related problems. 2024 2024 318 328 10.54216/IJNS.230326 https://www.americaspg.com/articleinfo/21/show/2534