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machine-learningcluster-analysisk-means
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Reputation: 1

Can K-means do dimensionality reduction？

My question is if we have 10 columns continuous variable, can we do k-means to shrink 10 columns to 1 with corresponding cluster labels and then do decision tree or logistic regression?

if a new data comes in, use k-mean result to determine its label and go to the machine learning model.

Upvotes: 0

Views: 40

Answers (1)

Mohammad hp
Mohammad hp

Reputation: 526

K-means is absolutely not a dimensionality reduction technique. Dimensionality reduction algorithms map the input space to a lower dimensional input space, while what you are proposing is mapping the input space directly to the output space which consists of the set of all integer labels.

Upvotes: 1

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