Correlation coefficients of single valued neutrosophic hesitant fuzzy sets and their applications in decision making

As a combination of the hesitant fuzzy set (HFS) and the single valued neutrosophic set (SVNS), the
single valued neutrosophic hesitant fuzzy set (SVNHFS) is an important concept to handle uncertain
and vague information existing in real-life, which consists of three membership functions including
hesitancy, as the truth-hesitancy membership function, the indeterminacy-hesitancy membership
function and the falsity-hesitancy membership function, and encompass the fuzzy set (FS),
intuitionistic fuzzy set (IFS), hesitant fuzzy set (HFS), dual hesitant fuzzy set (DHFS) and singlevalued
neutrosophic set (SVNS).