Read Model operator is deprecated from RapidMiner 7.2 and alternative ?

phivu

Hi RapidMiner,

 

I'm using RapidMiner 7.2 now (upgraded from 7.1), may I know what are the operators that have been removed from version 7.2 (e.g. Read Model, Write Model, etc.) and what are the alternative operators for those? Thank you very much for your help!

 

Best Regards,

Phi Vu

MartinLiebig

There are actually not just two options, but three. But i think only Store/Retrieve fits here.

 

1. Store/Retrieve

This stores anything which runs through a connection in the repository. This means that the file is physically written to disc or the underlying SQL DB of the Rm Server.

 

2. Remember/Recall

With Remember you store the object running thorugh a wire in a "process variable". Thus the object is still in memory and not written to disc. If you don't do anything with it the data will be lost after running the process and the garbage collection things it can delete it.

 

3. Publish to App/Recall from App

This works pretty similar to Remember/Recall, but is session wide. So you can Recall App objects also from other processes within the same session.  That way you have a storage which is not deleted after the process. It is only deleted if you you close studio or delete it manually. It is sometimes a very elegant way to have an in-memory state or memory if you are doing things on server, but it also works locally. of course this is a "creative missuse of operators".

 

~Martin