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The Shortform

Data Preprocessing Terms

For Data Mining & Machine Learning

Photo by Tim Gouw on Unsplash

Data Preprocessing is making data suitable for Data Mining. The approaches:

Aggregation — Combining multiple attributes/objects into one.

Sampling — Selection of a representative data subset to be analyzed. Types:
- Simple Random,
- Sampling with(out) replacement
- Stratified
- Progressive

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Tarun Gupta

Tarun Gupta

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