Hi,
in the Solr-admin in the "Query-View" I execute the following query:
*Request-Handler (qt): /select*
*q: {!item f=CompanyName}muller*
In the response I found the contacts with "Müller" and "Mueller".
In my C# program I use the SolrNet library and create the following query:
[image: image.png]
Why is only "Mueller" returned and not "Müller"?
Do I have to change my query?
Thanks,
Christian
Am Mo., 19. Juli 2021 um 17:01 Uhr schrieb Thomas Corthals <
tho...@klascement.net>:
> Hi Christian
>
> German is not my native language, but I believe Mayr vs. Meier is better
> suited for Phonetic Matching. You could make a SpellChecker lenient enough
> to catch it, but that's probably not the best choice.
>
> There's a specific GermanNormalizationFilter too. It's used for the text_de
> fieldType in the techproducts example.
>
>
> https://lucene.apache.org/core/8_9_0/analyzers-common/org/apache/lucene/analysis/de/GermanNormalizationFilterFactory.html
>
> Thomas
>
> Op ma 19 jul. 2021 om 16:24 schreef Christian Havel <
> christian.ha...@gmail.com>:
>
> > Hi everyone,
> >
> > thank you all very much for your help !!!!
> > From the customer I have some more examples.
> > Do I interpret yours feedback correctly, that all the examples should be
> > resolvable by using the SpellChecker or by the ASCII folder?
> >
> > Mayr vs. Meier,
> > Moét vs. Moet,
> > Cuvée vs. Cuvee,
> > Strasse vs. Straße,
> > Kudne vs. Kunde
> >
> > Sorry for my stupid questions.
> > Christian
> >
> > Am Mo., 19. Juli 2021 um 10:14 Uhr schrieb Thomas Corthals <
> > tho...@klascement.net>:
> >
> > > If you need support for "typewriter umlauts" as well, look into Unicode
> > > normalization.
> > >
> > >
> > >
> >
> https://solr.apache.org/guide/8_9/filter-descriptions.html#icu-folding-filter
> > >
> > > Thomas
> > >
> > > Op zo 18 jul. 2021 om 19:04 schreef Walter Underwood <
> > > wun...@wunderwood.org
> > > >:
> > >
> > > > For the André/Andre case, the ASCII folding filter will do the job.
> > > >
> > > >
> > > >
> > >
> >
> https://solr.apache.org/guide/8_9/filter-descriptions.html#ascii-folding-filter
> > > > <
> > > >
> > >
> >
> https://solr.apache.org/guide/8_9/filter-descriptions.html#ascii-folding-filter
> > > > >
> > > >
> > > > It does not do a conversion for “typewriter umlauts”, so you might
> > want a
> > > > character
> > > > replacement filter for those. That would convert ä to ae, ö to oe,
> and
> > ü
> > > > to ue.
> > > >
> > > > wunder
> > > > Walter Underwood
> > > > wun...@wunderwood.org
> > > > http://observer.wunderwood.org/ (my blog)
> > > >
> > > > > On Jul 18, 2021, at 9:14 AM, Jörn Franke <jornfra...@gmail.com>
> > wrote:
> > > > >
> > > > > Hi Christian,
> > > > >
> > > > > the examples you gave are not the target use case of phonetic
> > matching.
> > > > > What you want is the SpellChecker
> > > > > https://solr.apache.org/guide/8_4/spell-checking.html.
> > > > >
> > > > > While the problem of phonetic matching partially may serve you it
> is
> > > more
> > > > > for queries that want to have results that SOUND like what you have
> > > > typed.
> > > > > So it would not find Testkudne (sounds completely different from
> > > > Testkunde.
> > > > >
> > > > > Best regards
> > > > >
> > > > > On Sun, Jul 18, 2021 at 2:43 PM Christian Havel <
> > > > christian.ha...@gmail.com>
> > > > > wrote:
> > > > >
> > > > >> Hi,
> > > > >>
> > > > >> I found how to add PhoneticSearch to my field definition.
> > > > >> Well, that is ok. But how can I configure this one?
> > > > >> For example if I search for "Testkudne" that a document is found
> > that
> > > > has
> > > > >> the value "Testkunde" or if I search for "Andre" that "André“ is
> > > found,
> > > > >> too?
> > > > >> The following is my definition that is used for index and query:
> > > > >>
> > > > >>
> > > > >>
> > > > >>
> > > > >> * <dynamicField name="*_txt_de" type="text_de" indexed="true"
> > > > >> stored="true"/> <fieldType name="text_de"
> class="solr.TextField"
> > > > >> positionIncrementGap="100"> <analyzer>*
> > > > >> <tokenizer class="solr.StandardTokenizerFactory"/>
> > > > >> <filter class="solr.LowerCaseFilterFactory"/>
> > > > >> <filter class="solr.StopFilterFactory" ignoreCase="true"
> > > > >> words="lang/stopwords_de.txt" format="snowball" />
> > > > >> <filter class="solr.GermanNormalizationFilterFactory"/>
> > > > >>
> > > > >> *<filter class="solr.BeiderMorseFilterFactory" nameType="GENERIC"
> > > > >> ruleType="APPROX" concat="true" languageSet="auto" />*
> > > > >>
> > > > >> Christian
> > > > >>
> > > >
> > > >
> > >
> >
>
