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From "Andrew Musselman (JIRA)" <>
Subject [jira] [Commented] (MAHOUT-1518) Preprocessing for collaborative filtering with the Scala DSL
Date Tue, 22 Apr 2014 22:48:15 GMT


Andrew Musselman commented on MAHOUT-1518:

I've been unable to follow this thread diligently though I care about this issue; would this
be a good time to have a checkpoint and summarize the work done now, including some example
code/commands, and then summarize future plans?

> Preprocessing for collaborative filtering with the Scala DSL
> ------------------------------------------------------------
>                 Key: MAHOUT-1518
>                 URL:
>             Project: Mahout
>          Issue Type: New Feature
>          Components: Collaborative Filtering
>            Reporter: Sebastian Schelter
>            Assignee: Sebastian Schelter
>             Fix For: 1.0
>         Attachments: MAHOUT-1518.patch
> The aim here is to provide some easy-to-use machinery to enable the usage of the new
Cooccurrence Analysis code from MAHOUT-1464 with datasets represented as follows in a CSV
file with the schema _timestamp, userId, itemId, action_, e.g.
> {code}
> timestamp1, userIdString1, itemIdString1, “view"
> timestamp2, userIdString2, itemIdString1, “like"
> {code}

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