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2086747
Data preprocessing
Description
Mind Map on Data preprocessing, created by microbiologysiva on 21/02/2015.
Mind Map by
microbiologysiva
, updated more than 1 year ago
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Created by
microbiologysiva
about 9 years ago
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Resource summary
Data pre-processing
Annotations:
Data pre-processing is a data mining technique that involves transforming raw data into an understandable format
Data cleaning
Annotations:
Data is cleansed through processes such as filling in missing values, smoothing the noisy data, or resolving the inconsistencies in the data.
Missing values
Noisy data
Data cleaning as a process
Data integration and transformation
Data reduction
Annotations:
This step aims to present a reduced representation of the data in a data warehouse.
Data cube aggregation
Attributes subset selection
Dimensionality reduction
Numerosity reduction
Data discretization and concept hierarchy generation
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