Before revision:  We propose a novel fake news detection framework, namely Hierarchical Graph Attention Network(HGAT) which employs a novel hierarchical attention mechanism to detect fake news by classifying news article nodes in the HIN.
After revision:  We propose a novel fake news detection framework, namely Hierarchical Graph Attention Network(HGAT) which employs a novel hierarchical attention mechanism to perform node representation learning in HIN, and then detects fake news by classifying news article nodes in the HIN.