System | Methodology | F1 score (%) |
---|
Our system | CRF |
 Base line | 71.09 |
 Word2vec | 72.82 |
 Glove | 72.74 |
 CCA | 72.73 |
RNN |
 Jordan | 60.75 |
 Elman | 58.80 |
Zhou and Su [54] | HMM, SVM | 72.55 |
Song et al. [9] | SVM, CRF | 66.28 |
Ponomareva et al. [55] | HMM | 65.7 |
Saha et al. [29] | Maximum entropy | 67.41 |