It has to be noted that the Indo-European dating studies (Bouckaert et al., 2012;Chang et al., 2015;Rama, 2016) employ human expert cognacy judgments for inferring phylogeny and internal dates of a well-studied language family.
there is a need for developing automated cognate identification methods that can be applied to those families of the world that are not as well-studied as Indo-European language family.