Web Reference: Chapter 2. Data Preprocessing Note. first step of CRISP-DM is is the Business/Research Under-standing Phase. The second and thi d phases are the Data Understanding Phase and the Date Preparat on Phase. We begin exploring the details of these phases in this chapter. Chapter 3 (“Explorato y Data Analy is”) presents more detail on t e Dat Unde cse634 Data Mining Preprocessing Lecture Notes (chapter 2) Professor Anita Wasilewska Moreover, while doing any operation with data, it is mandatory to clean it and put in a formatted way.Therefore, for this, we use data pre-processing task. Data pre-processing is a process of preparing the raw data and making it suitable for a machine-learning model.
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