Graph Neural Networks, Deep Learning, Machine Learning, Artificial Intelligence, Gnn.
eigenvalues 0, 1, 3, 3, 4, 5. The eigenvector u1 for eigenvalue 0 is the constant vector. Eigenvectors u5 and u6 oscillate most rapidly as they have the highest frequencies of 4 and 5. Now suppose we have a smooth low-frequency signal f = [0, 0.1, 0.2, 0.3, 0.4, 0.5] on this graph. Its graph