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 Summary1 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