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Artem Lukanin commented on LUCENE-5030: --------------------------------------- OK, I will add a new option UNICODE_AWARE = 4, which will switch conversion ON. > FuzzySuggester has to operate FSTs of Unicode-letters, not UTF-8, to work > correctly for 1-byte (like English) and multi-byte (non-Latin) letters > ------------------------------------------------------------------------------------------------------------------------------------------------ > > Key: LUCENE-5030 > URL: https://issues.apache.org/jira/browse/LUCENE-5030 > Project: Lucene - Core > Issue Type: Bug > Affects Versions: 4.3 > Reporter: Artem Lukanin > Attachments: benchmark-INFO_SEP.txt, benchmark-old.txt, > benchmark-wo_convertion.txt, nonlatin_fuzzySuggester1.patch, > nonlatin_fuzzySuggester2.patch, nonlatin_fuzzySuggester3.patch, > nonlatin_fuzzySuggester4.patch, nonlatin_fuzzySuggester.patch, > nonlatin_fuzzySuggester.patch, nonlatin_fuzzySuggester.patch, > run-suggest-benchmark.patch > > > There is a limitation in the current FuzzySuggester implementation: it > computes edits in UTF-8 space instead of Unicode character (code point) > space. > This should be fixable: we'd need to fix TokenStreamToAutomaton to work in > Unicode character space, then fix FuzzySuggester to do the same steps that > FuzzyQuery does: do the LevN expansion in Unicode character space, then > convert that automaton to UTF-8, then intersect with the suggest FST. > See the discussion here: > http://lucene.472066.n3.nabble.com/minFuzzyLength-in-FuzzySuggester-behaves-differently-for-English-and-Russian-td4067018.html#none -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org