under the Department fest of Metallurgy - Composit
https://www.kaggle.com/dansbecker/using-categorical-data-with-one-hot-encoding
http://scikit-learn.org/stable/modules/generated/sklearn.preprocessing.OneHotEncoder.html
https://www.analyticsvidhya.com/blog/2015/11/8-ways-deal-continuous-variables-predictive-modeling/
https://www.researchgate.net/post/When_and_why_do_we_need_data_normalization