Explainable detection of adverse drug reaction with imbalanced data distribution
Table 3
Results comparison of different context encoders w/ and w/o weighted mechanism for ADR detection tasks.
The proposed weighted CRF significantly outperformed several baselines on both the Twitter and PubMed datasets. In addition, the weighting strategy on both softmax and CRF can alleviate the imbalanced data distribution, and they thus outperformed their conventional versions by about 1.1% and 1.8% on average across the two ADR tasks.