**8. Conclusions**

This paper introduces a novel concept of QSVBNS. Some set theoretic operations and several similarity measures have been stated. Also, a real life example of QSVBNS is presented for brief understanding. Decision making problem has been considered in a QSVBN environment and dealt with successfully.

BNS has been a successful tool for decision maker as bipolarity often occurs as a common phenomenon in human thinking. QSVBNS comes handy in situations where a person is unsure about the truth, false, both true and false or neither of them while handling a bipolar information system. The introduction of QSVBNS will help the cause of decision making problems and open new branch of neutrosophy. Future work may involve study of aggregation operators involving QSVBNS while dealing with decision making problems.

**Author Contributions:** Created and conceptualized ideas, S.R. and J.-G.L.; writing—original draft preparation, S.R.; writing—review and editing, A.P. and S.K.S.; funding acquisition, J.-G.L. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was partially supported by a Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2018R1D1A1B07049321).

**Conflicts of Interest:** The authors declare no conflict of interest.
