Classification and Regression Trees

Capa
Routledge, 19 de out. de 2017 - 368 páginas
The methodology used to construct tree structured rules is the focus of this monograph. Unlike many other statistical procedures, which moved from pencil and paper to calculators, this text's use of trees was unthinkable before computers. Both the practical and theoretical sides have been developed in the authors' study of tree methods. Classification and Regression Trees reflects these two sides, covering the use of trees as a data analysis method, and in a more mathematical framework, proving some of their fundamental properties.
 

Conteúdo

MASS SPECTRA CLASSIFICATION
203
72 Generalized Tree Construction
205
REGRESSION TREES
216
82 An Example
217
83 Least Squares Regression
221
84 Tree Structured Regression
228
85 Pruning and Estimating
232
86 A Simulated Example
237

23 Construction of the Tree Classifier
23
24 Initial Tree Growing Methodology
27
25 Methodological Development
36
26 Two Running Examples
43
27 The Advantages of the Tree Structured Approach
55
RIGHT SIZED TREES AND HONEST ESTIMATES
59
32 Getting Ready to Prune
63
33 Minimal CostComplexity Pruning
66
An Estimation Problem
72
35 Some Examples
81
Appendix
87
SPLITTING RULES
93
41 Reducing Misclassification Cost
94
42 The TwoClass Problem
98
Unit Costs
103
44 Priors and Variable Misclassification Costs
112
45 Two Examples
115
46 Class Probability Trees Via Gini
121
Appendix
126
STRENGTHENING AND INTERPRETING
130
52 Variable Combinations
131
53 Surrogate Splits and Their Uses
140
54 Estimating WithinNode Cost
150
55 Interpretation and Exploration
155
56 Computational Efficiency
163
57 Comparison of Accuracy with Other Methods
168
Appendix
171
MEDICAL DIAGNOSIS AND PROGNOSIS
174
61 Prognosis After Heart Attack
175
62 Diagnosing Heart Attacks
182
63 Immunosuppression and the Diagnosis of Cancer
189
64 Gait Analysis and the Detection of Outliers
194
65 Related Work on ComputerAided Diagnosis
201
87 Two CrossValidation Issues
241
88 Standard Structure Trees
247
89 Using Surrogate Splits
248
810 Interpretation
251
811 Least Absolute Deviation Regression
255
812 Overall Conclusions
264
BAYES RULES AND PARTITIONS
266
92 Bayes Rule for a Partition
269
93 Risk Reduction Splitting Rule
272
94 Categorical Splits
274
OPTIMAL PRUNING
279
102 Optimally Pruned Subtrees
284
103 An Explicit Optimal Pruning Algorithm
293
CONSTRUCTION OF TREES FROM A LEARNING SAMPLE
297
111 Estimated Bayes Rule for a Partition
298
112 Empirical Risk Reduction Splitting Rule
300
113 Optimal Pruning
302
114 Test Samples
303
115 CrossValidation
306
116 Final Tree Selection
309
117 Bootstrap Estimate of Overall Risk
311
118 EndCut Preference
313
CONSISTENCY
318
121 Empirical Distributions
319
122 Regression
321
123 Classification
324
124 Proofs for Selection 121
327
125 Proofs for Selection 122
332
126 Proofs for Selection 123
337
Bibliography
342
Notation Index
347
Subject Index
354
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