Re: [EXTERNAL] - Re: Spark ML / ALS question

2020-12-03 Thread Steve Pruitt 
Thanks, I confused myself.  I was looking at 
org.apache.spark.ml.recommendation.ALS Javadoc.  Not sure why it shows up.   I 
didn't notice the Developer API tag, so "fit" it is!

-S

From: Sean Owen 
Sent: Wednesday, December 2, 2020 3:51 PM
To: Steve Pruitt 
Cc: user@spark.apache.org 
Subject: [EXTERNAL] - Re: Spark ML / ALS question

There is only a fit() method in 
spark.ml<https://urldefense.com/v3/__http://spark.ml__;!!Obbck6kTJA!LtadpPpSINZQ3q4vJOXQw0UmOzZShpk98OlNRZWI2LNAXfqDlnNvNbbKRr3kOTt7$>'s
 ALS
http://spark.apache.org/docs/latest/api/scala/org/apache/spark/ml/recommendation/ALS.html<https://urldefense.com/v3/__http://spark.apache.org/docs/latest/api/scala/org/apache/spark/ml/recommendation/ALS.html__;!!Obbck6kTJA!LtadpPpSINZQ3q4vJOXQw0UmOzZShpk98OlNRZWI2LNAXfqDlnNvNbbKRgVXjH-W$>

The older spark.mllib interface has a train() method. You'd generally use the 
spark.ml<https://urldefense.com/v3/__http://spark.ml__;!!Obbck6kTJA!LtadpPpSINZQ3q4vJOXQw0UmOzZShpk98OlNRZWI2LNAXfqDlnNvNbbKRr3kOTt7$>
 version.

On Wed, Dec 2, 2020 at 2:13 PM Steve Pruitt  
wrote:
I am having a little difficulty finding information on the ALS train(…) method 
in 
spark.ml<https://urldefense.com/v3/__http://spark.ml__;!!Obbck6kTJA!LtadpPpSINZQ3q4vJOXQw0UmOzZShpk98OlNRZWI2LNAXfqDlnNvNbbKRr3kOTt7$>.
  Its unclear when to use it.  In the java doc, the parameters are undocumented.

What is difference between train(..) and fit(..).  When would do you use one or 
the other?


-S

Re: Spark ML / ALS question

2020-12-02 Thread Sean Owen 
There is only a fit() method in spark.ml's ALS
http://spark.apache.org/docs/latest/api/scala/org/apache/spark/ml/recommendation/ALS.html

The older spark.mllib interface has a train() method. You'd generally use
the spark.ml version.

On Wed, Dec 2, 2020 at 2:13 PM Steve Pruitt 
wrote:

> I am having a little difficulty finding information on the ALS train(…)
> method in spark.ml.  Its unclear when to use it.  In the java doc, the
> parameters are undocumented.
>
> What is difference between train(..) and fit(..).  When would do you use
> one or the other?
>
>
> -S
>
>

Spark ML / ALS question

2020-12-02 Thread Steve Pruitt 
I am having a little difficulty finding information on the ALS train(…) method 
in spark.ml.  Its unclear when to use it.  In the java doc, the parameters are 
undocumented.

What is difference between train(..) and fit(..).  When would do you use one or 
the other?


-S