Table 9 Ablation study on aspect-focused attention.
From: Multilingual sentiment analysis in restaurant reviews using aspect focused learning
Attention Mechanism | Accuracy (%) | Precision (%) | Recall (%) | F1-score (%) |
|---|---|---|---|---|
No Attention | 88.2 | 87.6 | 87.8 | 87.7 |
Simple Attention | 89.5 | 89.0 | 89.3 | 89.1 |
Single-Head Aspect-Focused | 90.4 | 89.9 | 90.1 | 90.0 |
Multi-Head (2 heads) | 91.0 | 90.5 | 90.7 | 90.6 |
Multi-Head (4 heads) | 91.9 | 91.3 | 91.7 | 91.5 |
Multi-Head (6 heads) | 91.4 | 90.9 | 91.2 | 91.1 |
Multi-Head (8 heads) | 91.2 | 90.7 | 91.0 | 90.8 |
