Dataset-independent features are measures of the similarity between a pair of languages based on phylogenetic or typological properties established by linguistic study.
we leverage six different linguistic distances queried from the URIEL Typological Database (Littell et al., 2017): The orthodromic distance between the languages on the surface of the earth, divided by the antipodal distance, based primarily on language location descriptions in Glottolog (Hammarström et al., 2018).