ETM in ProM Vs in repository

bendalmas

Hi !
I imported the ETM algorithm into Eclipse via the repository. I've executed it on and very simple event log and compared the resulting tree with the one I get with the ETM via ProM and I do not have the same results. Have the ETM plugin been improved in ProM ? (the resulting tree from ProM is better than the one from the eclipse implementation)

JBuijs

Dear Benjamin,

Thank you for testing the ETM

With 'ProM V' do you mean ProM 5.2? If so, then in ProM 5.2 there was no ETM so you are comparing it with another algorithm, probably the genetic miner.

If you mean ProM 6.5(.1) then the reason lies probably in the fact that the ETM is an evolutionary algorithm so no two runs of the ETM are the same. When run long enough the end result wil be the same, but differences do occur.
Another explanation could be a differences in the parameter settings used.
Or of course a difference in the implementation, which actually degraded performance.

I hope this helps!

bendalmas

Dear Joos, 

I'm testing it on ProM 6.5. It's weird since I've not changed anything in the source code, just launched the ETM as it is in the repository. 
Even with 5000 generations, I do not get results as good as the ones I get with only 1000 generation in ProM, not matter how many time I try. The other parameters are the same for both executions.
Maybe I should try to increase even more the number of generations. I'll keep you informed !

Thanks for your help