Graph Neural Networks, Deep Learning, Machine Learning, Artificial Intelligence, Gnn.
The set {ul} forms a complete basis to represent any signal on G. Every f has a unique GFT. Energy preservation: Parseval’s theorem holds ‖f‖2 = ‖ˆf‖2. Signal energy is preserved in the spectral domain. Frequency ordering: Eigenvalues λl indicate the frequency of ul. Smooth, slowly varying ul have