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Different results on diff. Computers with exactly same Setup and same Data

User: "Fred12"
Fred12
New Altair Community Member
Updated by Jocelyn

hi,

I was using Bagging with Rotation FOrests with J48graft base learner... I used same parameter setups and same training/testing data.. however I run the process on differen PC's, on my home PC with better Processor but less RAM, and on another with small Ghz Processor but huge RAM...

I got 93.4 % on the second PC with more RAM, but on my home PC I got a result with 97.4%--- how can that be?

I noticed the size of the grafted J48 trees was much bigger, about the double the size... e.g about 1200 Trees, and on the other PC they had only about 600-800 on average size of tree...

 

why is that? I don't want to make my results dependable on the Computer that I use.. how is that even possible? 

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    User: "Thomas_Ott"
    Thomas_Ott
    New Altair Community Member

    Did you set them to the same seed?

    User: "Fred12"
    Fred12
    New Altair Community Member
    OP

    yes, I used same seed in Bagging (1992) and default Seed 1 for Rotation Forest, however, I could not set a seed for W-J48graft because there was no option for that.. maybe thats a reason? I wonder the results are still so different...

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