240 Event Mining: Algorithms and Applications
establishing whether an incoming ticket is re al or false, with the appropriate
recommender used accordingly. The division method works as follows: it first
uses a type predictor to predict whether the incoming ticket is real or false.
If it is real, then it recommends the tickets from the real historic tickets; if it
is false, it recommends the tickets from the false historic tickets. The historic
tickets a re already processed by the system administrator, s o their types are
known and we do not have to predict them.
The division method is simple, but relies heavily on the precision of the
ticket type predictor, which cannot be perfect. If the ticket type predictio n
is correc t, there will be no penalt ...