Categorical Encoding Techniques
Many machine learning algorithm only accept numberic values, thus we have to encode categorical values into numberic value.
- One hot vector encoding
- Hashing
- Learn Enbedding if vocabulary size is big
Last active
March 5, 2019 02:08
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Categorical Encoding
- Categoical data - a fixed list of values, eg: gender, country/market/language, age group
- Ordinal data - order is important. Exmaple: ranking, datetime
- Numeric data
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