BertGCN: Transductive Text Classification by Combining GNN and BERT

In this work, we propose BertGCN, a model that combines large scale pretraining and transductive learning for text classification. Bert-GCN constructs a heterogeneous graph over the dataset and represents documents as nodes using BERT representations. By jointly training the BERT and GCN modules within Bert-GCN, the proposed model is able to leverage the advantages of both worlds: large-scale pretraining which takes the advantage of the massive amount of raw data and transductive learning which jointly learns representations for both training data and unlabeled test data by propagating label influence through graph convolution. Experiments show that BertGCN achieves SOTA performances on a wide range of text classification datasets.