Thursday, February 10, 2011

RapidMiner question and Correction

Earlier, I posted a how-to guide for RapidMiner, the leading open-source data mining and analysis tool. I received a question for a reader regarding the optimization process, and it seems I did leave an important detail out. Here is the process : 

Speeding Rapid Miner up:

1) Close all process you DONT need with task manager. Use common sense with this. Keep core processes and programs running but end everything unnecessary. (Example: Close things like limewire.exe or itunes.exe, but keep things like windows.exe and rapid-i.exe open!)

2) Find out how much RAM your system has. You can accomplish this by right clicking "My Computer" and clicking properties.

3) Go into your C: drive and then the program files folder. After that, find Rapid-I folder and open it up.  For windows, open up the rapidminerGUI file Right click the file, and hit edit. It will bring up a script in notepad.

4) Go down to where you see the line about JAVA MEMORY Max. Change it to something compatible for the amount of RAM your system has (remember to leave 1.5 - 2gb of ram for your OS.) For example, if you have a 2gb laptop, changing the amount to 1024 should be fine, although not preferable. It is a very powerful program and needs adequate resources to run.

This should get your RapidMiner working at full power.

What I failed to mention is that once you edit the code, in the RapideMinerGUI, and you save it, you need to run RapidMiner by just double-clicking the same file you just edited. (rapidminerGUI)

Then you are done! Hope this helps!

Also, below is a video tutorial which shows how to use RapidMiner for data modeling. Enjoy!

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