Re: [Exist-open] ngram index with mixed content

[Christian W. <cwi...@gm...>]

Dear Joe,

Thank you for your help.  The bug was between my ears, eXist-db works as 
expected :-)

All the best,

Christian

On 03/12/2020 04.01, Joe Wicentowski wrote:
> Hi Christian,
>
> Could you please try:
>
>   //tei:p[ngram:contains(., "CD.EF")]
>
> Instead of:
>
>   //ngram:contains(., "CD.EF")
>
> Joe
>
> On Wed, Dec 2, 2020 at 4:41 AM Christian Wittern <cwi...@gm... 
> <mailto:cwi...@gm...>> wrote:
>
>     Dear eXist users,
>
>     I am trying to improve search recall for my application, which
>     contains
>     premodern Chinese text.  My documents are set up to have <tei:seg>
>     elements for every phrase, which are in turn contained by tei:p
>     elements. At the moment, I am simple defining a ngram index on
>     tei:seg,
>     but that of course limits the matches to the contents of one tei:seg
>     element.  To overcome this limitation, I am defining a ngram index on
>     tei:p as well, in the expectation that the ngrams will be
>     constructed by
>     concating the tei:seg elements that make up a paragraph.  So for
>     example:
>
>     <tei:p><tei:seg>ABCD.</tei:seg><tei:seg>EFGH</tei:seg></tei:p>
>
>     With such a text, I would expect to be able to search for "CD.EF" and
>     find one match. However there is no match for
>
>     //ngram:contains(., "CD.EF"), also not with
>     //ngram:wildcard-contains(.,
>     "CD.EF")
>
>     The reason for this assumption is that the documentation for the
>     ngram
>     module says:
>
>     "Note: a ngram match on mixed content may span multiple nodes. "
>     (this
>     is in the documentation for the ngram:filter-matches function).
>
>     Since there are no parameters when setting up an ngram index, I would
>     expect that elements with mixed content like the tei:p element
>     would be
>     able to find a term across tei:seg elements.
>
>     Is this a bug or am I missing something?  Any help appreciated,
>
>     Christian
>
>
>
>
>     _______________________________________________
>     Exist-open mailing list
>     Exi...@li...
>     <mailto:Exi...@li...>
>     https://lists.sourceforge.net/lists/listinfo/exist-open
>     <https://lists.sourceforge.net/lists/listinfo/exist-open>
>