From CASRAI dictionary
|Extended definition||n/a +|
|Meta title||csr:Data standardization +|
|Research Data Domain||true +|
In the context of data analysis and data m …
In the context of data analysis and data mining: Where "V" represents the value of the variable in the original datasets: Transformation of data to have zero mean and unit variance. Techniques used include: (a) Data normalization; (b) z-score scaling; (c) Dividing each value by the range: recalculates each variable as V /(max V - min V). In this case, the means, variances, and ranges of the variables are still different, but at least the ranges are likely to be more similar; and, (d) Dividing each value by the standard deviation. This method produces a set of transformed variables with variances of 1, but different means and ranges. RELATED TERM. Data normalization; Data z-score normalizationnormalization; Data z-score normalization +
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|Data standardization + , Data standardization + , Data standardization + , Data standardization + , Data standardization +|
|Categories||Terms , Drafts , Research Data Domain|
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|12 August 2015 06:21:47 +|
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