[jira] Commented: (MAHOUT-126) Prepare document vectors from the text

["David Hall (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAHOUT-126?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12714348#action_12714348 ] 

David Hall commented on MAHOUT-126:
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I actually need something like this as well for LDA, except that I would prefer to be able to have the vectors not TF-IDF weighted. Could I get you to add some way of configuring that?

> Prepare document vectors from the text
> --------------------------------------
>
>                 Key: MAHOUT-126
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-126
>             Project: Mahout
>          Issue Type: New Feature
>            Reporter: Shashikant Kore
>
> Clustering algorithms presently take the document vectors as input.  Generating these document vectors from the text can be broken in two tasks. 
> 1. Create lucene index of the input  plain-text documents 
> 2. From the index, generate the document vectors (sparse) with weights as TF-IDF values of the term. With lucene index, this value can be calculated very easily. 
> Presently, I have created two separate utilities, which could possibly be invoked from another class. 

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