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Questions tagged [clusters]

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20
votes
4answers
16k views

Is it necessary to standardize your data before clustering?

Is it necessary to standardize your data before cluster? In the example from scikit learn about DBSCAN, here they do this in the line: ...
6
votes
2answers
3k views

For which real world data sets does DBSCAN surpass K-means.?

For clustering, DBSCAN surpass k-means in terms of handling arbitrary shape data sets. In the most published papers about density based clustering, the experiments are performed with synthetic data ...