BookmarkSubscribeRSS Feed
jhw_
Calcite | Level 5

Hi I'm using recommendation action sets.

There is ratioinfo option in recomAls and recomKnnTrain action . well I can't find information about why ratioinfo affects model I made.

is it for considering bias of user?

please help me!  

 

proc cas;
recommend.recomKnnTrain result=r /
  table='ratings_by_user'
  label='knn3'
  system='movieRecommend'
  similarity='similar_items'                              
  k=20                                                                                                           
  hold='holdout_users'
  rateinfo='avg_user'                                   
  user=False;                                                      
run;

print r;
run;



proc cas;
recommend.recomAls result = r /
    tableU="ratings_by_user"                     
    tableI="ratings_by_item"                  
    system="movieRecommend"
    label="als1"
    casOutU={name="als_u1" replace=true}
    casOutI={name="als_i1" replace=true}
    rateinfo="avg_user"
    maxIter=20                                                   
    hold = "holdout_users"                  
    seed = 1234
    details = True                      
    k=50                                                                        
    /*fconv=1e-6 */
    stagnation = 10                         
    threshold = 0.1 ;                     
run;  
1 REPLY 1
joeFurbee
Community Manager

Hi @jhw_

Do you mean rateinfo vs ratioinfo? If so, you can find more info in SAS Documentation for recomAls Action. rateinfo has the following definition: 

rateInfo={castable}

specifies the in-memory table that contains the rating summary information. Typically, the table contains the average rating for an item or the average rating by a user. The recomRateinfo action can be used to create these tables.

 

Moreover recomRateInfo action has the following:

Summarizes rating information.

 

Hope this is what you were looking for.


Join us for SAS Community Trivia

SAS-Bowl-LII-SAS-Viya-SDK-for-JavaScript
Wednesday, June 18, 2025 at 10 am.

hackathon24-white-horiz.png

The 2025 SAS Hackathon Kicks Off on June 11!

Watch the live Hackathon Kickoff to get all the essential information about the SAS Hackathon—including how to join, how to participate, and expert tips for success.

YouTube LinkedIn

How to Concatenate Values

Learn how use the CAT functions in SAS to join values from multiple variables into a single value.

Find more tutorials on the SAS Users YouTube channel.

SAS Training: Just a Click Away

 Ready to level-up your skills? Choose your own adventure.

Browse our catalog!

Discussion stats
  • 1 reply
  • 1103 views
  • 0 likes
  • 2 in conversation