Hierarchical Multi-Label Dialog Act Recognition on Spanish Data
Table 16: Results achieved on the combination of Levels 1 and 2.
['[BOLD] Approach', '[BOLD] MR  [ITALIC] m', '[BOLD] MR  [ITALIC] s']
Using the hierarchical approach we achieved an average of 94.28% exact match ratio, which is already above the 93.40% reported by Martínez-Hinarejos et al. (p≈3.0e−8) and in line with the 94.08% reported by Gambäck et al. (p≈0.20). By approaching the task as a single-label classification problem we achieved 96.24%, which is almost two percentage points above the result achieved using the hierarchical approach (p≈7.0e−43). This confirms that this view on the problem is actually a simplification.