Data Mining: Concepts and Techniques
6.15.2 ROC Curves 372 6.16 Summary 373 Exercises 375 Bibliographic Notes 378 Chapter 7 Cluster Analysis 383 7.1 What Is Cluster Analysis? 383 7.2 Types of Data in Cluster Analysis 386 7.2.1 Interval-Scaled Variables 387 7.2.2 Binary Variables 389 7.2.3 Categorical, Ordinal, and Ratio-Scaled Variables 392 7.2.4 Variables of Mixed Types 395 7.2.5 ...
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Data Mining: Concepts and Techniques
hanj.cs.illinois.edu2.4 Data Integration and Transformation 67 2.4.1 Data Integration 67 2.4.2 Data Transformation 70 2.5 Data Reduction 72 2.5.1 Data Cube Aggregation 73 2.5.2 Attribute Subset Selection 75 2.5.3 Dimensionality Reduction 77 2.5.4 Numerosity Reduction 80 2.6 Data Discretization and Concept Hierarchy Generation 86
2.4.8 Kullback-Leibler Divergence
hanj.cs.illinois.edufrom an observed frequency distribution, as illustrate in the following example. Example 2.24. Computing the KL Divergence by Smoothing. Sup-pose there are two sample distributions P and Q as follows: P: (a: 3/5,b:
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