mahout-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Sean Owen (JIRA)" <>
Subject [jira] Commented: (MAHOUT-559) Compare Recommender output by order of recommendations.
Date Tue, 07 Dec 2010 10:30:09 GMT


Sean Owen commented on MAHOUT-559:

Sounds good, let me review and perhaps tweak a few things (copyright headers, formatting,
etc.) and commit

> Compare Recommender output by order of recommendations.
> -------------------------------------------------------
>                 Key: MAHOUT-559
>                 URL:
>             Project: Mahout
>          Issue Type: New Feature
>          Components: Collaborative Filtering
>            Reporter: Lance Norskog
>         Attachments: OrderBasedRecommenderEvaluator.patch
> The existing RecommenderEvaluator (
has a very limited API. It evaluates a Recommender's performance on a training v.s. test scenario.
It does not allow comparing the outputs of different recommenders against the same data model.
Also, I could not figure out how its comparison criteria.
> OrderBasedRecommenderEvaluator compares the output of two recommenders. It only checks
the order of the items in the recommendations, ignoring the returned preference values. 

This message is automatically generated by JIRA.
You can reply to this email to add a comment to the issue online.

View raw message