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Posted to issues@spark.apache.org by "Debasish Das (JIRA)" <ji...@apache.org> on 2015/05/03 01:31:06 UTC
[jira] [Updated] (SPARK-4231) Add RankingMetrics to
examples.MovieLensALS
[ https://issues.apache.org/jira/browse/SPARK-4231?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Debasish Das updated SPARK-4231:
--------------------------------
Affects Version/s: (was: 1.2.0)
1.4.0
> Add RankingMetrics to examples.MovieLensALS
> -------------------------------------------
>
> Key: SPARK-4231
> URL: https://issues.apache.org/jira/browse/SPARK-4231
> Project: Spark
> Issue Type: Improvement
> Components: Examples
> Affects Versions: 1.4.0
> Reporter: Debasish Das
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> examples.MovieLensALS computes RMSE for movielens dataset but after addition of RankingMetrics and enhancements to ALS, it is critical to look at not only the RMSE but also measures like prec@k and MAP.
> In this JIRA we added RMSE and MAP computation for examples.MovieLensALS and also added a flag that takes an input whether user/product recommendation is being validated.
>
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