CNN模型:
https://ithelp.ithome.com.tw/articles/10192028
https://hackmd.io/@allen108108/rkn-oVGA4
https://faculty.csie.ntust.edu.tw/~kychen/courses/2018_Spring_DLNLP/2018-03-28%20Introduction%20to%20Keras.pdf
R2_score
https://ppfocus.com/0/ed83770cb.html
RMSE
https://help.sap.com/docs/SAP_ANALYTICS_CLOUD/00f68c2e08b941f081002fd3691d86a7/12cda9ce48b049a8adda7a6f3c240fa4.html
