[jira] Updated: (MAHOUT-415) Lucene filter for Collocations

["Drew Farris (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAHOUT-415?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Drew Farris updated MAHOUT-415:
-------------------------------

    Attachment: MAHOUT-415.patch

Here's a start: the Lucene TokenFilter implementation that takes a o.a.hadoop.util.bloom.Filter (BloomFilter) class and optionally keeps or tosses tokens that are members of the filter.

I doubt the package name is appropriate or even if something like this belongs in mahout, but I didn't spot it elsewhere.

> Lucene filter for Collocations
> ------------------------------
>
>                 Key: MAHOUT-415
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-415
>             Project: Mahout
>          Issue Type: New Feature
>    Affects Versions: 0.3
>            Reporter: Drew Farris
>            Assignee: Drew Farris
>         Attachments: MAHOUT-415.patch
>
>
> Collocations generated using Mahout could be used to form a whitelist of terms to index into a Lucene index. This patch will provide a way to generate a serialized BloomFilter from CollocationsOutput and a Lucene filter that will take a BloomFilter and emit tokens that are members of that filter. This would allow a set of interesting collocations to be pre-computed for a corpus and then allow the documents to be indexed using only those collocations.

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