Al-fraiji, S.S. and Al-Shammary, D. 2021. EEG Signals Classification based on mathematical selection and cosine similarity. Journal of Al-Qadisiyah for Computer Science and Mathematics. 13, 3 (Aug. 2021), Comp Page 57 – 67. DOI:https://doi.org/10.29304/jqcm.2021.13.3.837.