Unsupervised Paraphrasing without Translation
Table 2: Paraphrasing for Data Augmentation: Accuracy and F1-scores of a Naive Bayes-SVM classifier on sentiment (SST-2) and question (TREC) classification.
['[EMPTY]', 'SST-2 Acc.', 'SST-2 F1', 'TREC Acc', 'TREC F1']
TREC question classification is better with supervised translation augmentation. Unfortunately, our monolingual training set LM1B does not contain many question sentences. Future work will revisit monolingual training on larger, more diverse resources.