Call alignment-based conformance checking plugin programmatically

aprendi

Hi all,

I am developing a plugin that will automate the execution of discovery algorithms and conformance checking on multiple event logs for my master thesis. I would like to know how to call the conformance checking plugin, for example the Petri Net Replayer by Adriansyah. I am aware that I need to pass two inputs, namely the log and the Petri Net, as well as set the configuration parameters, but I cannot find any examples on what are the correct methods to call that will return the trace fitness and the other global statistics and how exactly I would call them. 

Thank you, 
Nina

hverbeek

Hi Nina,

Perhaps it is worthwhile for you to have a look at https://svn.win.tue.nl/trac/prom/browser/Packages/LogAlignment/Trunk/src/org/processmining/logalignment/algorithms/ReplayEventLogArrayOnAcceptingPetriNetArrayAlgorithm.java. This algorithm takes an array of event logs and an array (of same length) accepting Petri nets and calls the replayer on every logs[i] and nets[i]. (An accepting Petri net is just a container for the Petri net, its initial marking, and its collection of final markings.) The main issue here is the creation of the correct cost mappings: if you forget to add something to these mappings, the replayer may throw a null pointer exception later on.

Fitness information is stored in the getInfo() object of the replay result. See https://svn.win.tue.nl/trac/prom/browser/Packages/PNetReplayer/Trunk/src/org/processmining/plugins/petrinet/replayresult/PNRepResult.java for some of the information that is stored here.

Kind regards,

Eric.

aprendi

Hi Eric, 

Thank you for your answer. I cannot use the LogAlignment package as it does not fit my requirements, but it was helpful nonetheless. 

Best regards,
Nina