Abstract
As a powerful extension to fuzzy set, hesitant fuzzy set (HFS) attracted many scholars in the recent times. The HFS had the ability to accept multiple membership values for a specific instance, which helped in handling uncertainty to a certain extent. However, the previous studies on the hesitant fuzzy theory consider only single occurring probability value for each element which is problematic for decision-makers (DMs) to associate an accurate occurring probability with each element. To alleviate this issue, in this paper, a new concept called interval-valued probabilistic hesitant fuzzy set (IVPHFS) is proposed. Some desirable properties of IVPHFS are also investigated. Further, a new aggregation operator called simple interval-valued probabilistic hesitant fuzzy weighted geometry (SIVPHFWG) is presented and some interesting properties are discussed. Following this, a new extension of statistical variance (SV) is put forward under IVPHFS for calculating the weights of each criterion. A new extension to the popular VIKOR (VlseKriterijumskaOptimizacijaKompromisnoResenje) method is also presented under IVPHFS for ranking objects. The practicality of the proposed decision framework is analyzed by presenting two illustrative examples, viz., supplier selection problem and smartphone selection problem. Finally, the strength and weakness of the proposed decision framework are realized by comparison with other methods.
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Acknowledgements
The first author would like to thank University Grants Commission for their financial aid from Rajiv Gandhi National Fellowship with Grant No. F./2015-17/RGNF-2015-17-TAM-83, and the second author would like to thank Department of Science and Technology, Ministry of Science and Technology, Government of India, for their cloud infrastructure under the FIST programme with Grant No. SR/FST/ETI-349/2013. The authors also thank the editor and the anonymous reviewer(s) for their insightful comments which improved the quality of the paper.
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Krishankumar, R., Ravichandran, K.S., Kar, S. et al. Interval-valued probabilistic hesitant fuzzy set for multi-criteria group decision-making. Soft Comput 23, 10853–10879 (2019). https://doi.org/10.1007/s00500-018-3638-3
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DOI: https://doi.org/10.1007/s00500-018-3638-3