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HM, Heuristics nets to Petri nets and Conformance Checker
I think I'm having some problems understanding the result of the conversion from Heuristic net to Petri net. The converted Petri net contains some invisible tasks (black box). From some papers of W.M.P. van der Aalst and A.J.M.M. Weijters, I learned that invisible tasks is used for ROUTING purposes. Still, I couldn't understand the mechanism of conversion from Heuristic net to Petri net, when and why I should use invisible tasks in the conversion. Can you please tell me where I can find information or some papers telling more details about this conversion.
I'm using ProM 5.2 to discover process model. I used Heuristics Miner to mine the model. Heuristics Miner requires lot of parameters. Parameters of the algorithm are thresholds on:
There're some problems with parameters. I'm not sure those parameters are independent or dependent. What is the relationship between them? If I increase or decrease each of these parameters, what is the noticeable effects to the final model? And I really want to find out the techniques for setting those parameters to get the best model. I couldn't also find any papers mentioning about these issues.
After using Heuristics Miner to get the model, I convert the Heuristic net to Petri net to use Conformance Checker plugin. So I need to ensure the new model in Petri net notation represents the same process.
My final purpose is to check the conformance between a model and an event logs contain noise. I choose Heuristics Miner for the reason of noise but when using Conformance Checker, I have to convert to Petri net. I'm not sure is there anything impact on the accuracy of the model after conversion
Thank you in advance for your interest. Any help will be appreciated.
An Le, undergraduate student.
Department of Information Systems, Vietnam National University.