Cross-Lingual Syntactic Transfer with Limited Resources
Table 12: Precision, recall and f-score of unlabeled dependency attachment for different POS tags as head for three groups of languages for the universal dependencies experiments in Table 9: G1 (languages with UAS≥80), G2 (languages with 70≤UAS<80), G3 (languages with UAS<70). The rows are sorted by frequency in the G1 languages.
['POS', 'G1 freq%', 'G1 prec.', 'G1 rec.', 'G1 f1', 'G2 freq%', 'G2 prec.', 'G2 rec.', 'G2 f1', 'G3 freq%', 'G3 prec.', 'G3 rec.', 'G3 f1']
By far the most frequent head POS tags are NOUN, VERB, and PROPN (accounting for 85% of all dependencies). The table also shows that for all language groups G1, G2, and G3, the f1 scores for NOUN, VERB and PROPN are generally higher than the f1 scores for other head POS tags.