A Multi-agent Approach for Graph Classification Topics: Applications: Image Processing and Artificial Vision, Pattern Recognition, Decision Making, Industrial and Real World Applications, Financial Applications, Neural Prostheses and Medical Applications, Neural Based Data Mining and Complex Information Process; Learning Paradigms and Algorithms; Stochastic Learning and Statistical Algorithms In Proceedings of the 13th International Joint Conference on Computational Intelligence - Volume 1: NCTA, 334-343, 2021