PREDNASAJUCI / LECTURER : Andrii Maliuk (1) Astronomical Institute, Slovak Academy of Sciences, 059 60 Tatranská Lomnica NAZOV / TITLE : Estimation of contact binaries parameters with machine learning ABSTRAKT / ABSTRACT : In this study, we used various machine learning methods to predict the parameters of binary stars using a training dataset containing 11,894 objects. The input data consists of 11 coefficients from the synthetic light curves decomposition into sines, while the target variables include the mass ratio q, the fill out factor f, the inclination angle i (converted to sin⁡(i)), and the third light contribution l_3. Our results validate the choice of XGBoost method as an effective tool for predicting the parameters of binary star systems.