Clustering algorithms
Question
How to cluster unsupervised data where all the attributes and its values are categorical?
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Machine Learning
4 years
1 Answer
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Answer ( 1 )
Machine Learning model doesnot understand categories or letters. It only truly understand numbers. To group the categorical data, they are encoded. Mostly label encoding is done and after label encoding one-hot encoding is needed so that the data importance wont dissappear.
From one-hot encoding, the dimensions of data gets increases so we need to reduce dimension afterwards.