Thanx Erick, Your blog article was the perfect answer to my problem.
Rgds, Roland 2015-07-03 18:57 GMT+02:00 Erick Erickson <erickerick...@gmail.com>: > OK, I think you took a wrong turn at the bakery.... > > The FST-based suggesters are intended to look at the > beginnings of fields. It is totally unnecessary to use > ngrams, the FST that gets built does that _for_ you. > Actually it builds an internal FST structure that does > this "en passant". > > For getting whole fields that are anywhere in the input > field, you probably want to think about > AnalyzingInfixSuggester or FreeTextSuggester. > > The important bit here is that you shouldn't have to do > so much work... > > This might help: > > http://lucidworks.com/blog/solr-suggester/ > > Best, > Erick > > On Fri, Jul 3, 2015 at 4:40 AM, Roland Szűcs > <roland.sz...@bookandwalk.com> wrote: > > I tried to setup an autosuggest feature with multiple dictionaries for > > title , author and publisher fields. > > > > I used the solr.EdgeNGramFilterFactory to optimize the performance of the > > auto suggest. > > > > I have a document in the index with title: Romana. > > > > When I test the text analysis for auto suggest (on filed of > > title_suggest_ngram): > > ENGTF > > textraw_bytesstartendpositionLengthtypeposition > > rom[72 6f 6d]061word1roma[72 6f 6d 61]061word1roman[72 6f 6d 61 > 6e]061word1 > > romana[72 6f 6d 61 6e 61]061word1 > > If I try to run http://localhost:8983/solr/bandw/suggest?q=Roma, I get: > > <response> > > <lst name="responseHeader"> > > <int name="status">0</int> > > <int name="QTime">1</int> > > </lst> > > <lst name="suggest"> > > <lst name="suggest_publisher"> > > <lst name="Roma"> > > <int name="numFound">0</int> > > <arr name="suggestions"/> > > </lst> > > </lst> > > <lst name="suggest_title"> > > <lst name="Roma"> > > <int name="numFound">0</int> > > <arr name="suggestions"/> > > </lst> > > </lst> > > <lst name="suggest_author"> > > <lst name="Roma"> > > <int name="numFound">0</int> > > <arr name="suggestions"/> > > </lst> > > </lst> > > </lst> > > </response> > > > > my relevant field definitions: > > <field name="id" type="string" indexed="true" stored="true" > required="true" > > multiValued="false" omitNorms="true" /> > > <field name="author" type="text_hu" indexed="true" stored="true" > > multiValued="true"/> > > <field name="title" type="text_hu" indexed="true" stored="true" > > multiValued="false"/> > > <field name="subtitle" type="text_hu" indexed="true" stored="true" > > multiValued="false"/> > > <field name="publisher" type="text_hu" indexed="true" stored="true" > > multiValued="false"/> > > <field name="title_suggest_ngram" type="text_hu_suggest_ngram" > > indexed="true" stored="false" multiValued="false" omitNorms="true"/> > > <field name="author_suggest_ngram" type="text_hu_suggest_ngram" > > indexed="true" stored="false" multiValued="false" omitNorms="true"/> > > <field name="publisher_suggest_ngram" type="text_hu_suggest_ngram" > > indexed="true" stored="false" multiValued="false" omitNorms="true"/> > > <copyField source="title" dest="title_suggest_ngram"/> > > <copyField source="author" dest="author_suggest_ngram"/> > > <copyField source="publisher" dest="publisher_suggest_ngram"/> > > > > My EdgeNGram related field type definition: > > <fieldType name="text_hu_suggest_ngram" class="solr.TextField" > > positionIncrementGap="100"> > > <analyzer type="index"> > > <tokenizer class="solr.StandardTokenizerFactory"/> > > <filter class="solr.StopFilterFactory" > > ignoreCase="true" > > words="stopwords_hu.txt" > > /> > > <filter class="solr.LowerCaseFilterFactory"/> > > <filter class="solr.EdgeNGramFilterFactory" minGramSize="3" > > maxGramSize="8"/> > > </analyzer> > > <analyzer type="query"> > > <tokenizer class="solr.StandardTokenizerFactory"/> > > <filter class="solr.StopFilterFactory" > > ignoreCase="true" > > words="stopwords_hu.txt" > > /> > > <filter class="solr.LowerCaseFilterFactory"/> > > </analyzer> > > </fieldType> > > > > My requesthandler for suggest: > > <requestHandler name="/suggest" class="solr.SearchHandler" > startup="lazy"> > > <lst name="defaults"> > > <str name="suggest">true</str> > > <str name="suggest.count">5</str> > > <str name="suggest.dictionary">suggest_author</str> > > <str name="suggest.dictionary">suggest_title</str> > > <str name="suggest.dictionary">suggest_publisher</str> > > </lst> > > <arr name="components"> > > <str>suggest</str> > > </arr> > > </requestHandler> > > > > And finally my searchcomponent: > > <searchComponent name="suggest" class="solr.SuggestComponent"> > > <lst name="suggester"> > > <str name="name">suggest_title</str> > > <str name="lookupImpl">FSTLookupFactory</str> > > <str name="dictionaryImpl">DocumentDictionaryFactory</str> > > <str name="field">title_suggest_ngram</str> > > <str name="wightField">price</str> > > <str name="builOnStartup">true</str> > > <str name="buildOnCommit">true</str> > > </lst> > > <lst name="suggester"> > > <str name="name">suggest_author</str> > > <str name="lookupImpl">FSTLookupFactory</str> > > <str name="dictionaryImpl">DocumentDictionaryFactory</str> > > <str name="field">author_suggest_ngram</str> > > <str name="wightField">price</str> > > <str name="builOnStartup">true</str> > > <str name="buildOnCommit">true</str> > > </lst> > > <lst name="suggester"> > > <str name="name">suggest_publisher</str> > > <str name="lookupImpl">FSTLookupFactory</str> > > <str name="dictionaryImpl">DocumentDictionaryFactory</str> > > <str name="field">publisher_suggest_ngram</str> > > <str name="wightField">price</str> > > <str name="buildOnCommit">true</str> > > </lst> > > </searchComponent> > > If I change the search component definition to use title field instead of > > title_suggest_ngram tahn I manage to get suggest results only if my title > > field starts with the string specified in q parameter. > > As a filed level autosuggester I would suggest also those matches which > are > > not the first term of the title but any of them. > > What shall I make to use autosuggest correctly? > > > > -- > > <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu>Roland > Szűcs > > <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu>Connect > with > > me on Linkedin <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24 > > > > <https://bookandwalk.hu/>CEOPhone: +36 1 210 81 13Bookandwalk.hu > > <https://bokandwalk.hu/> > -- <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu>Szűcs Roland <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu>Ismerkedjünk meg a Linkedin <https://www.linkedin.com/pub/roland-sz%C5%B1cs/28/226/24/hu> -en <https://bookandwalk.hu/>ÜgyvezetőTelefon: +36 1 210 81 13Bookandwalk.hu <https://bokandwalk.hu/>
