Chapter 3: Data Preprocessing Data Preprocessing: An Overview Data Quality Major I asks in Data Preprocessing Data Cleaning a Data Integration Data reduction Data transformation and data discretization I Summary2 Chapter 3: Data Preprocessing ◼ Data Preprocessing: An Overview ◼ Data Quality ◼ Major Tasks in Data Preprocessing ◼ Data Cleaning ◼ Data Integration ◼ Data Reduction ◼ Data Transformation and Data Discretization ◼ Summary