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Operator order run using Multiply affects validation accuracy?

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Learner II thinhakapete
Learner II

Operator order run using Multiply affects validation accuracy?

Hi guys,

I am trying to learn Validation and Performance Measurement in Foundations Course.
One observation I have found that my Performance accuracy of my process is slightly different from the Solution file. What I also find out is the order of operator run will make 2 validation accuracy change despite I did use Multiply operator (which is described 2 datas won't affect each other).

What is the reason for this? Is it a bug or something else?

 

Compare.jpgOperator Order in Multiply affects Validation accuracy?

 

2 REPLIES
RM Staff RM Staff
RM Staff
Solution

Re: Operator order run using Multiply affects validation accuracy?

Hi,

 

it's fairly simple. The measurement of performance depends on the random seed. Thus you also have this (large) standard deviation. Just fix the local random seed and you will get the same results in every execution.

 

Best,

Martin

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Head of Data Science Services at RapidMiner
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Community Manager Community Manager
Community Manager

Re: Operator order run using Multiply affects validation accuracy?

tagging @Knut-RM

 

 

Scott Genzer
Senior Community Manager
RapidMiner, Inc.