1. Abadi M, Agarwal A, Barham P, Brevdo E, Chen Z, Citro C, Corrado GS, Davis A, Dean J, Devin M, Ghemawat S, Goodfellow I, Harp A, Irving G, Isard M, Jia Y, Jozefowicz R, Kaiser L, Kudlur M, Levenberg J, Mané D, Monga R, Moore S, Murray D, Olah C, Schuster M, Shlens J, Steiner B, Sutskever I, Talwar K, Tucker P, Vanhoucke V, Vasudevan V, Viégas F, Vinyals O, Warden P, Wattenberg M, Wicke M, Yu Y, Zheng X (2015) TensorFlow: large-scale machine learning on heterogeneous systems. Software available from tensorflow.org
2. Arevalillo-Herraez M, Arnau D, Ferri FJ, Santos OC (2017) Gui-driven intelligent tutoring system with affective support to help learning the algebraic method. In: 2017 IEEE international conference on systems, man, and cybernetics (SMC), IEEE, pp 2867–2872
3. Bergstra J, Bengio Y (2012) Random search for hyper-parameter optimization. J Mach Learn Res 13:281–305
4. Bhakre SK, Bang A (2016) Emotion recognition on the basis of audio signal using Naive Bayes classifier. In: 2016 international conference on advances in computing, communications and informatics (ICACCI), IEEE, pp 2363–2367
5. Bradski G (2000) The OpenCV Library. Dr. Dobb’s J Softw Tools 120:122–125