September 2001
Intermediate to advanced
182 pages
4h 16m
English
Content preview from Mining Your Own Business in Telecoms Using DB2 Intelligent Miner for Data
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Chapter 7. Can you determine the characteristics of known and unknown fraudulent behavior? 141
This cluster contains only one connection, where the premium number has a lot
of callers. Again the details view of the field, number of callers (“NO_CLRS”), in
Figure 7-9, you find the same high minimum and maximum value; here the value
is 217.
Figure 7-9 Cluster 34 (“Phone addiction”): NO_CLRS details
In our example, one of them (CALLER_ ID=9294866312) calls the premium
number excessively (NO_CALLS); the whole duration of all his calls (SUM_DUR)
as well as the costs (SUM_COST) are very high. A conspiratorial relation
between the frequent caller and ...
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