Create a data set that contains only the following asymmetric binary at- tributes: (Weather = Bad, Driver’s condition = Alcohol-impaired, Traffic violation = Yes, Seat Belt = No, Crash Severity = Major). For Traffic violation, only None has a value of 0. The rest of the attribute values are assigned to 1. Assuming that support threshold is 30%, how many candidate and frequent itemsets will be generated?
onsider the traffic accident data set shown in Table 7.1.
The binarized data is shown in Table 7.3.
The number of candidate itemsets from size 1 to size 3 is 5+10+0 = 15.
The number of frequent itemsets from size 1 to size 3 is 5 + 3 + 0 = 8.
Computer Science & Information Technology
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