ZHANG, Ruda October 25, 2019:  Notes on machine learning. [6e74cb4]
ZHANG, Ruda October 14, 2017:  Merge computational and statistical learning. [a493a55]
Ruda Zhang August 07, 2016:  Replace tab with two spaces. [adaa87b]
Ruda Zhang June 26, 2016:  add category tag to wiki pages [a9b356c]
Ruda Zhang June 26, 2016:  use canonical filename and no internal H1 [eeca8ff]