Question: What are the major data mining processes? Why do you think the early phases ( understanding of the business and understanding of the data )

What are the major data mining processes?
Why do you think the early phases (understanding of the business and understanding of the data) take the longest in data mining projects?
List and briefly define the phases in the CRISP-DM process.
What are the main data preprocessing steps? Briefly describe each step and provide relevant examples.
How does CRISP-DM differ from SEMMA?

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