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From peelman <>
Subject Re: TermVector (TF-IDF Scores) or MoreLikeThis From Subset of Documents
Date Thu, 29 Oct 2009 02:56:36 GMT

peelman wrote:
> I have an index of about 3 million documents, and specific list of
> document ids that belong in that 3 million (somewhere around 20-50
> documents on average).  With my filtered list of documents I want to be
> able to get TF-IDF scores or run a MoreLikeThis query against ONE
> particular document but calculated based on only that small subset,
> instead of the scores from the entire 3 million document index.
> Is there an easy way to do this using a filtered/subquery, or via any
> other means?
> Presently I am testing by creating a new index out of the subset of
> documents to get the TF-IDF scores, but obviously that is not going to
> work or scale in a finished implementation.
> Thanks in advance.

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