Adding control-flow and data-flow edges to abstract syntax trees helps some graph neural networks but not others, and the best model (GMN) works well even on plain syntax trees.
Improving cross- language code clone detection via code representation learning and graph neural networks,
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AST-Enhanced or AST-Overloaded? The Surprising Impact of Hybrid Graph Representations on Code Clone Detection
Adding control-flow and data-flow edges to abstract syntax trees helps some graph neural networks but not others, and the best model (GMN) works well even on plain syntax trees.