Naomi - this again is more legacy schema information. We had implemented the termvectors when VuFind used the MLT query. I found that a custom query did a better job and so the MLT query handler is not longer used. We should probably remove the termVectors from the schema - but I left it in just in case things were going to change.
Andrew
> -----Original Message-----
> From:
[hidden email] [mailto:vufind-tech-
>
[hidden email]] On Behalf Of Naomi Dushay
> Sent: Thursday, July 31, 2008 1:17 PM
> To:
[hidden email]
> Subject: [VuFind-Tech] vufind fields, termvectors and GetMoreLikeThis
>
> I read that termVectors improve performance of "getMoreLikeThis"
> queries
>
> "MoreLikeThis constructs a lucene query based on terms within a
> document. For best results, use stored TermVectors in the schema.xml
> for fields you will use for similarity. ... If termVectors are not
> stored, MoreLikeThis will generate terms from stored fields."
> (
http://wiki.apache.org/solr/MoreLikeThis> )
>
> BUT:
>
> The VuFInd code doesn't appear to use the SOLR MoreLikeThis
> requestHandler ... so is the above relevant?
>
> In any case, does it make sense to have termVectors on string fields?
> There's only one term in a string field ...
>
> The following are the VuFind string fields that also have termVectors
>
> format
> language
> (langcode)
> publishDate
> callnumber-a
> topicStr
> genreStr
> geographicStr
> era
>
>
> Naomi Dushay
>
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>
>
>
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