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Practical Applications of Data Mining
book

Practical Applications of Data Mining

by Sang C. Suh
January 2011
Intermediate to advanced
420 pages
12h 32m
English
Jones & Bartlett Learning
Content preview from Practical Applications of Data Mining
3.3 separate-and-Conquer approaCh 97
After trimming off the third to the last term “age is presbyopic,” the P, T,
p, t values and the probability (Pr) measure are as follows:
T = 24, P = 15, t = 12, p = 3
Pr = 1.00
As seen in the example above, the original rule has the lowest probability
value. Therefore, we abandon the trimmed rules and keep the original one.
The same principle can be applied to rules 3 and 4. No conditional terms are
pruned off from these rules. Therefore, the rule list remains the same.
3.3.3 REP, IREP, RIPPER
The preceding procedure for generating rules leads to over-fitted rules
since it uses the same dataset to generate and evaluate the rules ([Pagallo
1990], [Brunk 1991], and [Cohen 1995]). Reduced ...
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Publisher Resources

ISBN: 9780763785871