1. CS490D: Introduction to Data Mining Chris Clifton January 23, 2004 Data Preparation 2. Data Preprocessing Why preprocess the data? Data cleaningData integration and transformation…

1. Data Preprocessing . 2. Why Data Preprocessing? Data in the real world is dirty incomplete: missing attribute values, lack of certain attributes of interest, or containing…

1. Chapter 2: Data Preprocessing Why preprocess the data? Descriptive data summarization Data cleaningData integration and transformation Data reduction Discretization and…

1. Data Mining: Concepts and Techniques — Chapter 2 —Jiawei Han Department of Computer Science University of Illinois at Urbana-Champaign www.cs.uiuc.edu/~hanj ©2006…

1. Data Processing 1. Objectives....................................................................................2 2. Why Is Data Dirty?......................................................................2…

Slide 1 Data Preprocessing Why preprocess the data? Data cleaning Data integration and transformation Data reduction Discretization Summary Why Data Preprocessing? Data in…

Data Preprocessing . Why Data Preprocessing? Data in the real world is dirty incomplete: missing attribute values, lack of certain attributes of interest, or containing only…

1 June 7, 2014 Data Mining: Concepts and Techniques 1 Data Mining: Concepts and Techniques — Chapter 2 — Jiawei Han Department of Computer Science University of Illinois…

* Data Mining: Concepts and Techniques * Data Mining: Concepts and Techniques — Chapter 2 — Jiawei Han Department of Computer Science University of Illinois at Urbana-Champaign…

Slide 1 Chapter 4 Data Preprocessing To make data more suitable for data mining. To improve the data mining analysis with respect to time, cost and quality. Slide 2 Why Data…