Re: Movie Recommendation tutorial

2015-02-24 Thread Sean Owen
It's something like the average error in rating, but a bit different -- it's the square root of average squared error. But if you think of the ratings as 'stars' you could kind of think of 0.86 as 'generally off by 0.86' stars and that would be somewhat right. Whether that's good depends on what

Re: Movie Recommendation tutorial

2015-02-24 Thread Krishna Sankar
used the medium one (1 million). -Xiangrui On Mon, Feb 23, 2015 at 8:36 AM, poiuytrez guilla...@databerries.com wrote: What do you mean? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Movie-Recommendation-tutorial-tp21769p21771.html

Movie Recommendation tutorial

2015-02-23 Thread poiuytrez
-list.1001560.n3.nabble.com/Movie-Recommendation-tutorial-tp21769.html Sent from the Apache Spark User List mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional commands, e

Re: Movie Recommendation tutorial

2015-02-23 Thread poiuytrez
What do you mean? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Movie-Recommendation-tutorial-tp21769p21771.html Sent from the Apache Spark User List mailing list archive at Nabble.com

Re: Movie Recommendation tutorial

2015-02-23 Thread Xiangrui Meng
-list.1001560.n3.nabble.com/Movie-Recommendation-tutorial-tp21769p21771.html Sent from the Apache Spark User List mailing list archive at Nabble.com. - To unsubscribe, e-mail: user-unsubscr...@spark.apache.org For additional

Re: Movie Recommendation tutorial

2015-02-23 Thread Krishna Sankar
). -Xiangrui On Mon, Feb 23, 2015 at 8:36 AM, poiuytrez guilla...@databerries.com wrote: What do you mean? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Movie-Recommendation-tutorial-tp21769p21771.html Sent from the Apache Spark User List mailing list

Re: Movie Recommendation tutorial

2015-02-23 Thread Xiangrui Meng
million). -Xiangrui On Mon, Feb 23, 2015 at 8:36 AM, poiuytrez guilla...@databerries.com wrote: What do you mean? -- View this message in context: http://apache-spark-user-list.1001560.n3.nabble.com/Movie-Recommendation-tutorial-tp21769p21771.html Sent from the Apache Spark User