CT-LRP backpropagates relevance scores through a GNN and text embedding to produce class-specific token-level explanations for rumour detection, adding a contrastive step that filters tokens shared with other classes.
Rumors detection, verification and controlling mechanisms in online social networks: A survey,
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Contrastive Token-level Explanations for Graph-based Rumour Detection
CT-LRP backpropagates relevance scores through a GNN and text embedding to produce class-specific token-level explanations for rumour detection, adding a contrastive step that filters tokens shared with other classes.