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Practical Data Analysis - Second Edition by Dr. Sampath Kumar, Hector Cuesta

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Data reduction methods

Many data scientists use large data size in volume for analysis, which takes a long time, though it is very difficult to analyze the data sometimes. In data analytics applications, if you use a large amount of data, it may produce redundant results. In order to overcome such difficulties, we can use data reduction methods.

Data reduction is the transformation of numerical or alphabetical digital information derived empirically or experimentally into a corrected, ordered, and simplified form. Reduced data size is very small in volume and comparatively original, hence, the storage efficiency will increase and at the same time we can minimize the data handling costs and will minimize the analysis time also.

We can use several ...

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