Table 2.
Comparison of classification accuracy (%).
| Algo. & Features | RT | Yelp | IMDB | |
|---|---|---|---|---|
| unigram | Linear SVM | 76.2 * | 91.87 | 87.8 † |
| Logistic | 76.9 | 91.90 | 88.19 | |
| NBSVM | 78.1 * | 92.13 | 88.29 * | |
| MTSA | 78.0 | 92.20 | 88.57 | |
| MTSA(fixed negation) | 78.3 | 92.20 | 88.48 | |
| MTSA(NB) | 78.3 | 92.52 | 88.81 | |
| MTSA(shifter) | 78.4 | 92.78 | 88.82 | |
| MTSA(NB + shifter) | 78.8 | 93.08 | 88.97 | |
| bigram | Linear SVM | 77.7 * | 91.93 | 89.16 * |
| Logistic | 78.1 | 92.99 | 89.18 | |
| NBSVM | 79.4 * | 93.99 | 91.22 * | |
| MTSA(NB + shifter)‡ | 81.3 | 94.07 | 90.44 | |