Simple minded autosuggest can just not tokenize the phrases at all and so the wildcards just complete whatever the user has typed so far including spaces. Upon encountering a space though, autosuggest should wait to make more suggestions until the user has typed at least a couple of letters of the next word. That is the way I did it last time using a different search engine. It'd sure be kewl if this became a core feature of solr!
I like the idea of the tree approach, sounds much faster. The root is the least letters to start suggestions and the leaves are the full phrases? -----Original Message----- From: Jason Rutherglen [mailto:jason.rutherg...@gmail.com] Sent: Wednesday, July 29, 2009 12:09 PM To: solr-user@lucene.apache.org Subject: Re: search suggest Autosuggest is something that would be very useful to build into Solr as many search projects require it. I'd recommend indexing relevant terms/phrases into a Ternary Search Tree which is compact and performant. Using a wildcard query will likely not be as fast as a Ternary Tree, and I'm not sure how phrases would be handled? http://lucene.apache.org/java/2_4_0/api/org/apache/lucene/analysi It would be good to separate out the TernaryTree from analysis/compound and into Lucene core, or into it's own contrib. Also see http://issues.apache.org/jira/browse/LUCENE-625 which improves relevancy using click through rates. I'll open an issue in Solr to get this one going. On Wed, Jul 29, 2009 at 9:12 AM, Robert Petersen<rober...@buy.com> wrote: > To do a proper search suggest feature you have to index all the queries > your system gets and search it with wildcards for matches on what the > user has typed so far for each user keystroke in the search box... > Usually with some timer logic to wait for a small hesitation in their > typing. > > > > -----Original Message----- > From: Jack Bates [mailto:ms...@freezone.co.uk] > Sent: Tuesday, July 28, 2009 10:54 AM > To: solr-user@lucene.apache.org > Subject: search suggest > > how can i use solr to make search suggestions? i'm thinking google-style > suggestions, which suggests more refined queries - vs. freebase-style > suggestions, which suggests top hits. > > i've been looking at the query params, > http://wiki.apache.org/solr/StandardRequestHandler > > - and searching for "solr suggest" - but haven't figured out how to get > search suggestions from solr >
