Any improvements that are not entangled with a learning objective, i.e., pure pre-processing, usually arising from clues found in the node features and graph structure.
Graph Representational Learning (GRL) have come at the cost of significant computational resource requirements for training, e.g., for calculating gradients
In dynamical systems, the states of an agent are affected by the interactions, and the states are usually recorded as a set of continuous variables, which make it difficult to uncover the interactions based on the similarity between the agents.