GitHub

a strange bug in sklearn.preprocessing.OneHotEncoder() when transform unknown string with handle_unknown='ignore'

Using sklearn.preprocessing.OneHotEncoder() with parameter handle_unknown='ignore' will get a wrong output, when I manually set categories_ && all objects are of string type && an unknown category is ...
GitHub

one-hot-encoding-for-machine-learning-with-python-and-scikit-learn.md

Machine Learning models work with numbers. That is, they are mathematical models which improve themselves by performing mathematical optimization. It possibly makes the hype a little bit less ...