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Flexible Heuristics Miner - Inconsistent frequencies
I am currently analyzing process logs in course of my master's thesis, where I use the plug-in "Mine for a Heuristic Net using Heuristics Miner" in ProM SilvR.
using the plug-in, I noticed that when I compare the Input and Output
Summary for each activity with the actual arcs in the model, the numbers
are often quite different. This holds true over different threshhold configurations.
In addition, the occurences of input- and
output activities that from my understanding should be the same are also
different, for example when an activity is connected to itself.
I used the plugin on the ExampleLog, giving this exemplary graph:On the model (not depicted here) it can be seen that the activity is 102-times
followed by itself (the arc indicating a length-one-loop is marked with
the number 102), however, input shows 108 and the output shows 100.
Shouldnt they all be the same? And are those differences an issue of the plug-in itself, or do they emerge from the design of the algorithm?
Thank you very much for your inconvenience.