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From "Marian Steinbach" <mar...@sendung.de>
Subject Certain form of autocomplete (like Google Suggest)
Date Fri, 04 Jul 2008 08:58:27 GMT
Hi all!

I just startet evaluating Solr a few days ago and I'm quite happy with
the way it works. The test project I am using on is a product search
for a wine shop with 2500 articles and about 20 fields, with faceted
search.

Now I'd like to know what would be the best way to implement a search
term autocompletion in the way of Google Suggest
(http://www.google.com/webhp?complete=1&hl=en).

Most autocomplete implementations aim to display search result entries
during input. What Suggest does, and what I'd like to accomplish, is
an automatic suggestion of relevant index terms. This would help users
to prevent spelling problems, which are a huge issue in the domain of
wine, where almost every other term is french.

Szenario:

1) The user types "sa" into a query input field.
2) The system searches for the 10 most frequent index terms starting
with "sa" and displays the result in a menu.
3) The user adds a 3rd character => input is now "sau"
4) The system searches for the 10 most frequent index terms starting
with "sa" and displays the result in a menu.
5) The user clicks on "sauvignon" in the menu and the term in the
input field is completed to "sauvignon".

So, what I need technically is the (web service) query that delivers
all index terms (for specific index fields) starting with a certain
prefix. The result should be ordered by frequency and limited to a
certain amount of entries.

Is this functionality already available in the Solr core?

It seems as if "Schema Browser" functionality of the luke webapp (part
of the nightly build) does something similar, but I can't find out how
to limit the term lists to match the requirements above.

I have to mention that I'm not an experienced Java developer. :)

Thanks for your help!

Marian

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