Levytska, T. and Kotykhova , L. 2025. Graph neural networks and PageRank algorithms in the problems of predicting the popularity of hashtags in social networks. Reporter of the Priazovskyi State Technical University. Section: Technical sciences. 51 (Oct. 2025), 50–56. DOI:https://doi.org/10.31498/2225-6733.51.2025.344600.