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From dan sutton <danbsut...@gmail.com>
Subject Re: Auto Suggest
Date Fri, 03 Sep 2010 15:33:02 GMT
I set this up a few years ago with something like the following:

<fieldType name="autocomplete" class="solr.TextField">
                <analyzer type="index">
                        <tokenizer class="solr.KeywordTokenizerFactory"/>
                        <filter class="solr.LowerCaseFilterFactory" />
                        <filter class="solr.PatternReplaceFilterFactory"
pattern="([^a-z0-9])" replacement="" replace="all" />
                        <filter class="solr.EdgeNGramFilterFactory"
maxGramSize="20" minGramSize="1" />
                </analyzer>
                <analyzer type="query">
                        <tokenizer class="solr.KeywordTokenizerFactory"/>
                        <filter class="solr.LowerCaseFilterFactory" />
                        <filter class="solr.PatternReplaceFilterFactory"
pattern="([^a-z0-9])" replacement="" replace="all" />
                </analyzer>
    </fieldType>

<filter class="solr.PatternReplaceFilterFactory" pattern="([^a-z0-9])"
replacement="" replace="all" /> is the bit missing i think here

This way the search is agnostic to case and any non-alphanum chars, this was
to facilitate a location autocomplete for searching

So is was a basic search, returning the top N results along with additional
info to show in the autocomplete to our mod_perl servers, Results were
cached in the mod_perl servers.

Regards,
Dan

On Thu, Sep 2, 2010 at 1:53 PM, Jason Rutherglen <jason.rutherglen@gmail.com
> wrote:

> I'm having a different issue with the EdgeNGram technique described
> here:
> http://www.lucidimagination.com/blog/2009/09/08/auto-suggest-from-popular-queries-using-edgengrams/
>
> That is one word queries q=app on the query_text field, work fine
> however "q=app mou" do not.  Why would this be or is there a
> configuration that could be missing?
>
> On Wed, Sep 1, 2010 at 3:53 PM, Eric Grobler <impalaherd@googlemail.com>
> wrote:
> > Thanks for your feedback Robert,
> >
> > I will try that and see how Solr performs on my data - I think I will
> create
> > a field that contains only important key/product terms from the text.
> >
> > Regards
> > Johan
> >
> > On Wed, Sep 1, 2010 at 9:12 PM, Robert Petersen <robertpe@buy.com>
> wrote:
> >
> >> We don't have that many, just a hundred thousand, and solr response
> >> times (since the index's docs are small and not complex) are logged as
> >> typically 1 ms if not 0 ms.  It's funny but sometimes it is so fast no
> >> milliseconds have elapsed.  Incredible if you ask me...  :)
> >>
> >> Once you get SOLR to consider the whole phrase as just one big term, the
> >> wildcard is very fast.
> >>
> >> -----Original Message-----
> >> From: Eric Grobler [mailto:impalaherd@googlemail.com]
> >> Sent: Wednesday, September 01, 2010 12:35 PM
> >> To: solr-user@lucene.apache.org
> >> Subject: Re: Auto Suggest
> >>
> >> Hi Robert,
> >>
> >> Interesting approach, how many documents do you have in Solr?
> >> I have about 2 million and I just wonder if it might be a bit slow.
> >>
> >> Regards
> >> Johan
> >>
> >> On Wed, Sep 1, 2010 at 7:38 PM, Robert Petersen <robertpe@buy.com>
> >> wrote:
> >>
> >> > I do this by replacing the spaces with a '%' in a separate search
> >> field
> >> > which is not parsed nor tokenized and then you can wildcard across the
> >> > whole phrase like you want and the spaces don't mess you up.  Just
> >> store
> >> > the original phrase with spaces in a separate field for returning to
> >> the
> >> > front end for display.
> >> >
> >> > -----Original Message-----
> >> > From: Jazz Globe [mailto:jazzglobe@hotmail.com]
> >> > Sent: Wednesday, September 01, 2010 7:33 AM
> >> > To: solr-user@lucene.apache.org
> >> > Subject: Auto Suggest
> >> >
> >> >
> >> > Hallo
> >> >
> >> > How would one implement a multiple term auto-suggest feature in Solr
> >> > that is filter sensitive?
> >> > For example, a user enters :
> >> > "mp3"
> >> >  and solr might suggest:
> >> >  ->   "mp3 player"
> >> >  ->   "mp3 nano"
> >> >  ->   "mp3 sony"
> >> > and then the user starts the second word :
> >> > "mp3 n"
> >> > and that narrows it down to:
> >> >  -> "mp3 nano"
> >> >
> >> > I had a quick look at the Terms Component.
> >> > I suppose it just returns term totals for the entire index and cannot
> >> be
> >> > used with a filter or query?
> >> >
> >> > Thanks
> >> > Johan
> >> >
> >> >
> >> >
> >>
> >
>

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