Table 3.
The influence of different similarity measurements on performance.
| Model | Precision1 | Precision2 | Recall | F11 | F12 | 
|---|---|---|---|---|---|
| Jaccard similarity | –32.54% | -12.35% | +43.31% | +9.21% | +27.53% | 
| TF-IDF | –10.39% | –4.75% | +5.94% | +0.854% | +3.69% | 
| Semantic similarity | –42.93% | –16.09% | +85.06% | +13.98% | +49.83% |