ICU normalization (ICUFoldingFilterFactory) will at least handle "ß" -> "ss" (IIRC) and some other language-general variants that might get you close. There are, of course, language specific analyzers (https://wiki.apache.org/solr/LanguageAnalysis#German) , but I don't think they'll get you Foto->photo.
You might experiment with DoubleMetaphone encoding (DoubleMetaphoneFilterFactory) or, worst case, back off to synonym lists (SynonymFilterFactory) for your domain. -----Original Message----- From: Rainer Gnan [mailto:rainer.g...@bsb-muenchen.de] Sent: Wednesday, August 10, 2016 10:21 AM To: solr-user@lucene.apache.org Subject: Solr 6.1 :: language specific analysis Hello, I wonder if solr offers a feature (class) to handle different orthogaphy versions? For the German language for example ... in order to find the same documents when searching after "Foto" or "Photo". I appreachiate any help! Rainer -------------------------------------------- Rainer Gnan Bayerische Staatsbibliothek BibliotheksVerbund Bayern Verbundnahe Dienste 80539 München Tel.: +49(0)89/28638-2445 Fax: +49(0)89/28638-2665 E-Mail: rainer.g...@bsb-muenchen.de --------------------------------------------
