I'm trying to use scikit-learn's LabelEncoder to encode a pandas DataFrame of string labels. As the dataframe has many (50+) columns, I want to avoid creating a ... ... <看更多>

Label Encoding - encoding a nominal variable with arbitrary numeric labels. Ordinal Encoding - encoding an ordinal variable with numeric ... ... <看更多>

Currently LightGBM use an approach which is more flexible than label encoding. The labels in label encoding are replaced with gradients, ... ... <看更多>

Label encoding doesn't work well at all with non-ordinal categorical features. One-hot encoding leads to a humongous number of added ... ... <看更多>