Machine Learning Group at University of Waikato.

Errata (Last Printing of the 1st Edition)

This page lists known errors in the latest, fourth printing (October 2001) of the book "Data Mining: Practical Machine Learning Tools and Techniques with Java Implementations" by Ian H. Witten and Eibe Frank (1st edition).

A list of (additional) errors in the first printing can be found here.

Chapter 1

Page 17
    Line -6: "17 disease categories" should be "19 disease categories"
    (reported by Michael Schmitt, Fakultaet fuer Mathematik, Ruhr-Universitaet Bochum, February 2004)
Page 29
    Line 5 : "for weather" should be "for windy"
    (reported by Quan Qiu, October 2005)

Chapter 2

Page 47
    Line 11: "3684" should be "3884"
    (reported by Quan Qiu, May 2005)

Chapter 4

Page 96
    Table 4.7: "gain ratio: 0.029/1.362" should be "gain ratio: 0.029/1.557" and "0.021" should be "0.019"
    (reported by Chiung-Wei Huang, Department of Electronic Engineering, Ching-Yun Institute of Technology, December 2002)
Page 103
    Line -3: "third line from" should be "line at"
    (reported by Lin Dong, September 2005)
Page 105
    Line -11 : "first row" should be "first two rows", and "shows" should be "show"
    (reported by Lin Dong, September 2005)
Page 105
    Line -9 : "mild" should be "hot"
    (reported by Lin Dong, September 2005)
Page 107
    Line 8: "4/12" should be "4/14"
    (reported by Xie Xuanyang, Department of Computer Science, University of Science and Technology of China, December 2004)
Page 108
    Line -5: "minumum" should be "minimum"
    (reported by Michael Schmitt, Fakultaet fuer Mathematik, Ruhr-Universitaet Bochum, February 2004)

Chapter 5

Page 125
    Line 9: "0.0.881" should be "0.881"

Chapter 6

Page 181
    Line -6 : "building it incrementally by adding conjunctions" should be "pruning a rule incrementally by removing conjunctions"
    (reported by Lin Dong, July 2005)
Page 182
    Lines -4--5 : "However, if during backtracking a node is encountered all of whose children are not leaves" should be "However, if during backtracking a node is encountered not all of whose children expanded so far are leaves"
    (reported by Lin Dong, July 2005)
Page 188
    Line 2: "krantz" should be "kranz"
    (reported by Johannes Fürnkranz, December 2005)
Page 189
    Line 16 : "eight weights" should be "ten weights"
    (reported by Lin Dong, May 2005)
Page 193
    Lines 16-17 : "no hidden layers" should be "one hidden layer"
Page 218
    Line 13 : the exponent is missing a minus sign before the fraction (reported by Lin Dong, January 2006)
Page 219
    Lines 5-6 : "minimum" should be "maximum".
    (reported by Lin Dong, July 2005)

Chapter 7

Page 239
    Lines -17 and -18: ", and true otherwise" should be deleted and "are set to false" should be "are set to true"
    (reported by Lin Dong, August 2005)
Page 263
    Line -8: "the X^2 test" should be "the $\chi^2$ test"
    (reported by Michael Schmitt, Fakultaet fuer Mathematik, Ruhr-Universitaet Bochum, February 2004)

Chapter 8

Page 286
    Line 37: "weka.classifiers.bagging" should be "weka.classifiers.Bagging"

References

Page 343
    Line -8: "krantz" should be "kranz"
    (reported by Johannes Fürnkranz, December 2005)

Index

Page 365
    "resubstitution error 129" should be "resubstitution error 121, 129"
    (reported by Michael Schmitt, Fakultaet fuer Mathematik, Ruhr-Universitaet Bochum, February 2004)