Message passing is a graph-computation technique in which neighboring nodes exchange information so graph neural networks can update node representations and capture dependence relationships. section 11.5 section 11.7
Message passing supports graph-based learning tasks involving relational structure:
- Modeling social networks, where relationships between nodes carry predictive information. section 11.5
- Predicting protein structure, where graph representations encode relationships among components. section 11.5
- Building graph neural network variants such as graph convolutional, graph attention, and graph recurrent networks. section 11.5 section 11.7








