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Table 2 Information of the Amazon Reviews dataset

From: A semi-supervised short text sentiment classification method based on improved Bert model from unlabelled data

Corpus

Instance

Average word

Total word

Partition

Chrome Reviews training

5800

6.445

37,379

Training (5800)

Chrome Reviews verification

720

7.168

5161

Verification (720)

Chrome Reviews testing

720

6.051

4139

Testing (720)