We consider the problem of learning efficient and inductive graph convolutional networks for text classification with a large number of examples and features. Existing state-of-the-art graph embedding based methods such as predictive text embedding (PTE) and TextGCN have shortcomings in terms of predictive performance, scalability and inductive capability. To address these limitations, we propose a heterogeneous graph convolutional network (HeteGCN) modeling approach that unites the best aspects of PTE and TextGCN together. The main idea is to learn feature embeddings and derive document embeddings using a HeteGCN architecture with different graphs used across layers. We simplify TextGCN by dissecting into several HeteGCN models which (a) helps to study the usefulness of individual models and (b) offers flexibility in fusing learned embeddings from different models. In effect, the number of model parameters is reduced significantly, enabling faster training and improving performance in small labeled training set scenario. Our detailed experimental studies demonstrate the efficacy of the proposed approach.

本文提出了一种异构图卷积网络建模方法HeteGCN，结合了predictive text embedding (PTE) 和 TextGCN的优点用于文本分类，以解决现有方法预测能力、可扩展性和归纳能力的局限性。通过使用不同的图层在一个HeteGCN架构中学习特征嵌入并派生文档嵌入，将TextGCN简化为几个HeteGCN模型，从而简化了模型参数，以提高性能和训练速度。实验结果表明所提出的方法在小的标注训练集方案下有效。

HeteGCN：面向文本分类的异构图卷积网络