In this study. we investigate a novel conception called complex interval-valued hesitant fuzzy set (CIvHFS) as the modification of some prevailing conceptions such as interval-valued complex fuzzy set (IvCFS) and interval-valued hesitant fuzzy set (IvHFS). to tickle the data or information which have intricate and haziness in the genuine life dilemmas. The CIvHFS carries the membershi... https://www.nacrack.com/