THX! -----Ursprüngliche Nachricht----- Von: Neil Bacon [mailto:neil.ba...@nicta.com.au] Gesendet: Freitag, 13. Juni 2014 01:48 An: java-user@lucene.apache.org Betreff: Re: AW: Analyzing suggester for many fields
Hi Clemens, Goutham's code is at: https://github.com/gtholpadi/MyLucene I'm doing something similar, adding weighting as some function of doc freq (and using Scala). Cheers, Neil On 13/06/14 00:19, Clemens Wyss DEV wrote: > enter InputIteratorWrapper ;) i.e. new InputIteratorWrapper(tfit ) > > -----Ursprüngliche Nachricht----- > Von: Clemens Wyss DEV [mailto:clemens...@mysign.ch] > Gesendet: Donnerstag, 12. Juni 2014 16:01 > An: java-user@lucene.apache.org > Betreff: AW: Analyzing suggester for many fields > > trying to re-build the multi-field TermFreqIterator based on the > Goutham's initial code > > TermFreqIteratorWrapper tfit = null; > for (AtomicReaderContext readerc : readercs) > { > Fields fields = readerc.reader().fields(); > for (String field : fields) > { > TermsEnum termsEnum = fields.terms( field > ).iterator(null); > tfit = new TermFreqIteratorWrapper(termsEnum); // > OVERWRITE! > } > } > AnalyzingSuggester suggr = new AnalyzingSuggester( > IndexManager.getIndexingAnalyzer( locale ) ); > suggr.build( tfit ); > > BUT AnalyzingSuggester#build requires an InputIterator and not > TermFreqIteratorWrapper/BytesRefIterator. Did this change from 4.4 to 4.7.2? > > -----Ursprüngliche Nachricht----- > Von: Clemens Wyss DEV [mailto:clemens...@mysign.ch] > Gesendet: Mittwoch, 11. Juni 2014 12:57 > An: java-user@lucene.apache.org > Betreff: AW: Analyzing suggester for many fields > > Unfortunately the link provided by Goutham is no more valid. Anybody still > got the code? > > -----Ursprüngliche Nachricht----- > Von: Goutham Tholpadi [mailto:gtholp...@gmail.com] > Gesendet: Donnerstag, 29. August 2013 06:21 > An: java-user@lucene.apache.org > Betreff: Re: Analyzing suggester for many fields > > I implemented a simple TermFreqIterator for wrapping Iterator-s from multiple > fields, or from multiple AtomicReaders under an IndexReader. > It seems to work for me. In case anyone else wants to use a quick-fix, here > it is: http://pastebin.com/Hm2zW9xR . > > Goutham Tholpadi > https://sites.google.com/site/gtholpadi/ > > > On Tue, Aug 27, 2013 at 10:05 PM, Goutham Tholpadi <gtholp...@gmail.com> > wrote: >> Field-specific suggestions is a good idea that I had not thought >> about. Thanks Mike, for the answer, and the suggestion! :) >> >> Goutham Tholpadi >> https://sites.google.com/site/gtholpadi/ >> >> >> On Tue, Aug 27, 2013 at 9:28 PM, Michael McCandless >> <luc...@mikemccandless.com> wrote: >>> I think you should just implement your own TermFreqIterator, that >>> wraps/delegates each of the N fields in turn? >>> >>> But, at suggestion time, do you need per-field suggestions? If so, >>> maybe you should build a separate suggester for each field... >>> >>> Mike McCandless >>> >>> http://blog.mikemccandless.com >>> >>> >>> On Tue, Aug 27, 2013 at 9:19 AM, Goutham Tholpadi <gtholp...@gmail.com> >>> wrote: >>>> Lucene Version : 4.4.0 >>>> >>>> SITUATION : >>>> >>>> I need to suggest terms to the user based on a query prefix typed >>>> in a textbox. The terms suggested should exist in the index that >>>> will be searched. I want to suggest terms from more than one field >>>> in the index. >>>> >>>> I am trying to use >>>> org.apache.lucene.search.suggest.analyzing.AnalyzingSuggester for >>>> this. >>>> >>>> PROBLEM : >>>> >>>> Given the path to the index directory, I proceed as follows. >>>> --------------------------------------------------------------- >>>> IndexReader ireader = DirectoryReader.open(FSDirectory.open(new >>>> File(indexPath))); >>>> List<AtomicReaderContext> readercs = ireader.leaves(); for >>>> (AtomicReaderContext readerc : readercs) { >>>> Fields fields = readerc.reader().fields(); >>>> for (String field : fields) { >>>> TermsEnum termsEnum = fields.terms(field).iterator(null); >>>> tfit = new TermFreqIteratorWrapper(termsEnum); // OVERWRITE! >>>> } >>>> } >>>> AnalyzingSuggester suggr = new AnalyzingSuggester(analyzer); >>>> suggr.build(tfit); >>>> --------------------------------------------------------------- >>>> >>>> In the line marked "OVERWRITE!", I am overwriting the term list >>>> from one field with the term list from the next field. I want to >>>> aggregate term lists obtained from different fields. >>>> >>>> I could not find a way to instantiate TermFreqIterator without a >>>> BytesRefIterator. The only way to get a BytesRefIterator seems to >>>> be in the form of TermsEnum. Neither can be changed (i.e. appended >>>> to) after instantiation. >>>> >>>> How can I aggregate the TermsEnum lists from different fields so >>>> that I can pass them together in one shot to build()? >>>> Alternatively, is there a way to add term lists to the suggester >>>> after calling >>>> build() once? >>>> >>>> Thanks! >>>> >>>> ------------------------------------------------------------------- >>>> - >>>> - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>>> >>> -------------------------------------------------------------------- >>> - To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org >>> For additional commands, e-mail: java-user-h...@lucene.apache.org >>> > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org > For additional commands, e-mail: java-user-h...@lucene.apache.org > > B KKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKKK > KCB [ X ܚX KK[XZ[ ] K]\ \ ][ X ܚX P X [ K \X K ܙ B ܈Y > ][ۘ[ [X[ K[XZ[ ] K]\ \ Z[ X [ K \X K ܙ B B --------------------------------------------------------------------- To unsubscribe, e-mail: java-user-unsubscr...@lucene.apache.org For additional commands, e-mail: java-user-h...@lucene.apache.org
