Re: RMSRecommenderEvaluator RMSE

2013-01-15 Thread Sean Owen
You have the definition there already, what are you asking? On Jan 15, 2013 5:58 PM, Zia mel ziad.kame...@gmail.com wrote: Hi again , When evaluting preferences in recommenders and using RMSRecommenderEvaluator, is it RMSE/RMSD http://en.wikipedia.org/wiki/Root_mean_square_deviation If we

Re: RMSRecommenderEvaluator RMSE

2013-01-15 Thread Zia mel
the RMSE will vary depending on the range of data. For example if the range of ratings is 0-1 it will be different when it is 1-10 . So my question is that is there a way to say that the predicting rate is X% instead of saying that the RMSE is 1 or 2 ? So I suggested diving the RMSE/range to get