# Alexey Ivakhnenko **Domain:** Cybernetics / Machine Learning / Systems Identification **Doc Type:** Person Node **Maturity:** Historical ## Definition **Alexey Grigorevich Ivakhnenko** was a Ukrainian Soviet scientist whose work on cybernetic prediction and self-organizing multilayer models established the [[wiki/Group Method of Data Handling|Group Method of Data Handling]]. ## Technical Context His 1971 polynomial theory used successively composed candidate models, parameter estimation from data and performance on a separate testing set to retain or discard elements. This joined multilayer learning with [[wiki/Held-Out Validation|held-out validation]]. ## Sources / Provenance - A. G. Ivakhnenko, “Heuristic Self-Organization in Problems of Engineering Cybernetics,” 1970. - A. G. Ivakhnenko, “Polynomial Theory of Complex Systems,” 1971. - [[articles/Modern Artificial Intelligence in the 1970s|Modern Artificial Intelligence in the 1970s]].