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00:00 Introduction
00:13 What is Categorical Data
00:32 Nominal Categorical type
00:54 Ordinal Categorical Type
01:32 What is Categorical Encoding
03:03 Understanding Data
03:58 Identifying Categorical data
04:54 Converting object type to category type
06:49 Train Test Split
07:13 Label Encoding in Machine Learning
10:26 Ordinal encoding in Machine Learning
14:58 One Hot Encoding in Machine Learning
21:48 Sparse Matrix
25:08 Categorical Encoding on Unseen data
27:08 Handle Unknown values

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