Of course with the fields Eoghan mentioned you have the option of modifying your search to not include the stemmed fields.

I know however that when we designed our search specs we had to sit down with all the Librarians and map out exactly what all the competing expectations of the result set were. Having non-stemmed results come back before stemmed results is usually the balance most people want, but YMMV, and there may be seemingly unrelated requests that interact (like some testing I did on phonetic filters also showed they were stemming).

Ta,
Greg

2010/9/29 Markus Fischer <info@flyingfischer.ch>
Thanks both of you for the answers!

If I can trust my own notes we use r2606. So first thing to try will be
upgrading on a non-production server to check out the new standard
behaviour of Vufind.

Since we use a special default sorting (firts year desc, then journal
issue desc) overriding relevance, I probably have still to try with
other stemmers too...

Thanks!
Markus

Am 28.09.2010 18:42, schrieb Eoghan Ó Carragáin:
> Also, depending on the version of VuFind you are using, it may not be a
> problem. Since r2942, some fields (title and topic) are also indexed
> without stemming & weighted above stemmed versions by default so that
> the user gets what they entered first, & only then is presented with
> stemmed versions. See http://vufind.org/jira/browse/VUFIND-259
> Eoghan
>
> On 28 September 2010 17:35, Demian Katz <demian.katz@villanova.edu
> <mailto:demian.katz@villanova.edu>> wrote:
>
>     VuFind uses the SnowballPorterFilterFactory for word stemming by
>     default.  I'm sure this is what is causing the issue you describe --
>     in many cases, stemming is helpful for retrieval of all relevant
>     results, but there are always special situations where it causes
>     confusing and misleading responses.  To avoid these situations, your
>     most obvious options are to choose a different stemmer or disable
>     stemming entirely.
>
>     To disable stemming, just remove the SnowballPorterFilterFactory
>     lines from solr/biblio/conf/schema.xml under your VuFind
>     installation, then reindex everything.
>
>     To find a different stemmer, see
>     http://wiki.apache.org/solr/AnalyzersTokenizersTokenFilters/#Stemming.
>
>     Unfortunately, there is not currently a mechanism in the
>     SnowballPorterFilterFactory for blacklisting certain words to avoid
>     stemming (ignore the protected attribute in the configuration file
>     -- this doesn't actually work and is probably a relic from an
>     earlier configuration using a different stemmer).  The good news is
>     that a generic stemming exclusion mechanism is coming in a future
>     version of Solr; the bad news is, I'm not sure which version, or when.
>
>     Does this help?
>
>     - Demian
>
>
>      > -----Original Message-----
>      > From: Markus Fischer [mailto:info@flyingfischer.ch
>     <mailto:info@flyingfischer.ch>]
>      > Sent: Tuesday, September 28, 2010 11:55 AM
>      > To: vufind-general@lists.sourceforge.net
>     <mailto:vufind-general@lists.sourceforge.net>
>      > Subject: [VuFind-General] Searches ending on -ing get autotruncated
>      >
>      > I noticed a strange search behaviour in Vufind:
>      >
>      > care brings also careing and vice versa
>      >
>      > It seems as the verbform on -ing is always treated in the same way as
>      > the noun with add autotruncation...
>      >
>      > This is strange because, in the case of careing the later is not
>     really
>      > the verbform, but also a separate technical term in health care.
>      >
>      > Is there a way to disable this behaviour?
>      >
>      > Thanks Markus
>      >
>      >
>      >
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