Re: ALS predictALL not completing

2015-06-17 Thread Nick Pentreath
So to be clear, you're trying to use the recommendProducts method of
MatrixFactorizationModel? I don't see predictAll in 1.3.1

1.4.0 has a more efficient method to recommend products for all users (or
vice versa):
https://github.com/apache/spark/blob/v1.4.0/mllib/src/main/scala/org/apache/spark/mllib/recommendation/MatrixFactorizationModel.scala#L152



On Tue, Jun 16, 2015 at 4:30 PM, Ayman Farahat ayman.fara...@yahoo.com
wrote:

 This is 1.3.1

 Ayman Farahat
 --
 View my research on my SSRN Author page:
 http://ssrn.com/author=1594571

   --
  *From:* Nick Pentreath nick.pentre...@gmail.com
 *To:* user@spark.apache.org user@spark.apache.org
 *Sent:* Tuesday, June 16, 2015 4:23 AM
 *Subject:* Re: ALS predictALL not completing

 Which version of Spark are you using?

 On Tue, Jun 16, 2015 at 6:20 AM, afarahat ayman.fara...@yahoo.com wrote:

 Hello;
 I have a data set of about 80 Million users and 12,000 items (very sparse
 ).
 I can get the training part working no problem. (model has 20 factors),
 However, when i try using Predict all for 80 Million x 10 items , the jib
 does not complete.
 When i use a smaller data set say 500k or a million it completes.
 Any ideas suggestions ?
 Thanks
 Ayman



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Re: ALS predictALL not completing

2015-06-16 Thread Ayman Farahat
This is 1.3.1 Ayman Farahat 
-- 
View my research on my SSRN Author page: 
http://ssrn.com/author=1594571 

  From: Nick Pentreath nick.pentre...@gmail.com
 To: user@spark.apache.org user@spark.apache.org 
 Sent: Tuesday, June 16, 2015 4:23 AM
 Subject: Re: ALS predictALL not completing
   
Which version of Spark are you using? 
On Tue, Jun 16, 2015 at 6:20 AM, afarahat ayman.fara...@yahoo.com wrote:

Hello;
I have a data set of about 80 Million users and 12,000 items (very sparse ).
I can get the training part working no problem. (model has 20 factors),
However, when i try using Predict all for 80 Million x 10 items , the jib
does not complete.
When i use a smaller data set say 500k or a million it completes.
Any ideas suggestions ?
Thanks
Ayman



--
View this message in context: 
http://apache-spark-user-list.1001560.n3.nabble.com/ALS-predictALL-not-completing-tp23327.html
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Re: ALS predictALL not completing

2015-06-16 Thread Nick Pentreath
Which version of Spark are you using?

On Tue, Jun 16, 2015 at 6:20 AM, afarahat ayman.fara...@yahoo.com wrote:

 Hello;
 I have a data set of about 80 Million users and 12,000 items (very sparse
 ).
 I can get the training part working no problem. (model has 20 factors),
 However, when i try using Predict all for 80 Million x 10 items , the jib
 does not complete.
 When i use a smaller data set say 500k or a million it completes.
 Any ideas suggestions ?
 Thanks
 Ayman



 --
 View this message in context:
 http://apache-spark-user-list.1001560.n3.nabble.com/ALS-predictALL-not-completing-tp23327.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-mail: user-h...@spark.apache.org




ALS predictALL not completing

2015-06-15 Thread afarahat
Hello; 
I have a data set of about 80 Million users and 12,000 items (very sparse ). 
I can get the training part working no problem. (model has 20 factors), 
However, when i try using Predict all for 80 Million x 10 items , the jib
does not complete. 
When i use a smaller data set say 500k or a million it completes. 
Any ideas suggestions ?
Thanks
Ayman



--
View this message in context: 
http://apache-spark-user-list.1001560.n3.nabble.com/ALS-predictALL-not-completing-tp23327.html
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