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DATA PRE-PROCESSING - Coggle Diagram
DATA PRE-PROCESSING
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Data Transformation
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A function that maps the entire set of values of a given attribute to a new set of replacement values (each old value can be identified with one of the new values)
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Data Integration
sources may include multiple database, data cubes or flat files
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Clustering
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Partition data set into clusters, and one can store cluster representation only
Sampling
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Allow a mining algorithm to run in complexity that is potentially sub-linear to the size of the data
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