Data Mining&nbsp;Which of the following steps are done before data modeling? SELECT ONE&nbsp;Data cleaning&nbsp;Data reduction&nbsp;Data transformation&nbsp;All of the above

Question

Data Mining&amp;nbsp;Which of the following steps are done before data modeling? SELECT ONE&amp;nbsp;Data cleaning&amp;nbsp;Data reduction&amp;nbsp;Data transformation&amp;nbsp;All of the above

fumanchuecf · Accepted Answer

The following major steps are involved in data mining.  1. Define the problem.  2. Identify the required data  3. Data pre processing  4. Data modelling.  5. Train and test the model.  6. Verify and deploy.

enveradapb · Accepted Answer

Before the the data modelling steps there is a data preprocessing step.  In data mining data preprocessing involve the following steps or techniques.  1. Data cleaning.  2. Data integration.  3. Data transformation.  4. Data reduction.  5. Discretization.  Hence before data modelling in the data preprocessing steps Data cleaning, Data reduction, Data transformation are done.  Therefore,  The option All of the above is correct.