Optimization of the input space for deep learning data analysis in HEP.Andrei Chernoded, Lev Dudko, Georgi Vorotnikov, Petr Volkov, Dmitri Ovchinnikov, Maxim Perfilov and Artem ShporinEPJ Web Conf., 222 (2019) 02016DOI: https://doi.org/10.1051/epjconf/201922202016