Nguyen, N.H.V., Pham, M., Do, P., Pham, C. and Tachibana, K. 2020. Human action recognition method based on conformal geometric algebra and recurrent neural network. Information and Control Systems. 5 (Oct. 2020), 2-11. DOI:https://doi.org/10.31799/1684-8853-2020-5-2-11.