Because "my" is the 7th suggestion down the list, it is going to need more than 30 tries to figure out the one that can give some hits. You can increase "maxCollationTries" if you're willing to endure the performance penalty of trying so many replacement queries. This case actually highlights why DirecrSpellChecker by default doesn't even bother with short words like this.
Rather than letting the spellchecker check words this small, possibly you can just scan the user's input and make any words <4 characters long to be optional? Or even just use a mm below 100%? (65% ?) I realize this will give you a small loss of precision but the recall will be better and you'll have to rely less on spellcheck. James Dyer Ingram Content Group (615) 213-4311 -----Original Message----- From: Corey Gerhardt [mailto:corey.gerha...@directwest.com] Sent: Friday, August 15, 2014 3:21 PM To: Solr User List Subject: Spellchecking suggestions won't collate It must be Friday. I can't figure out why there is no collation value: { "responseHeader":{ "status":0, "QTime":31, "params":{ "spellcheck":"on", "spellcheck.collateParam.qf":"BUS_BUSINESS_NAME", "spellcheck.maxResultsForSuggest":"5", "spellcheck.maxCollations":"3", "spellcheck.maxCollationTries":"30", "qf":"BUS_BUSINESS_NAME_PHRASE", "q.alt":"*:*", "spellcheck.collate":"true", "spellcheck.onlyMorePopular":"false", "defType":"edismax", "debugQuery":"true", "echoParams":"all", "spellcheck.count":"10", "spellcheck.alternativeTermCount":"10", "indent":"true", "q":"Mi Next Promo", "wt":"json"}}, "response":{"numFound":0,"start":0,"maxScore":0.0,"docs":[] }, "spellcheck":{ "suggestions":[ "mi",{ "numFound":10, "startOffset":0, "endOffset":2, "suggestion":["mr", "mp", "mid", "mix", "mb", "mj", "my", "md", "mc", "ma"]}, "next",{ "numFound":3, "startOffset":3, "endOffset":7, "suggestion":["nest", "news", "neil"]}, "promo",{ "numFound":4, "startOffset":8, "endOffset":13, "suggestion":["photo", "prime", "pronto", "prof"]}]}, The actual business name is "My Next Promo" which I'm hoping would be the collation value. Thanks, Corey