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From "Andrzej Bialecki (JIRA)" <>
Subject [jira] Updated: (SOLR-1316) Create autosuggest component
Date Sat, 19 Sep 2009 18:41:16 GMT


Andrzej Bialecki  updated SOLR-1316:

    Attachment: suggest.patch

This is a very much work in progress, to get review before proceeding.

Highlights of this patch:

* created a set of interfaces in o.a.s.spelling.suggest to hide implementation details of
various autocomplete mechanisms.

* imported sources of RadixTree, Jaspell TST and Ankul's TST. Wrapped each implementation
so that it works with the same interface. (Ankul: I couldn't figure out how to actually retrieve
suggested keys from your TST?)

* extended HighFrequencyDictionary to return TermFreqIterator, which gives not only words
but also their frequencies. Implemented a similar iterator for file-based term-freq lists.

> Create autosuggest component
> ----------------------------
>                 Key: SOLR-1316
>                 URL:
>             Project: Solr
>          Issue Type: New Feature
>          Components: search
>    Affects Versions: 1.4
>            Reporter: Jason Rutherglen
>            Priority: Minor
>             Fix For: 1.5
>         Attachments: suggest.patch, TernarySearchTree.tar.gz
>   Original Estimate: 96h
>  Remaining Estimate: 96h
> Autosuggest is a common search function that can be integrated
> into Solr as a SearchComponent. Our first implementation will
> use the TernaryTree found in Lucene contrib. 
> * Enable creation of the dictionary from the index or via Solr's
> RPC mechanism
> * What types of parameters and settings are desirable?
> * Hopefully in the future we can include user click through
> rates to boost those terms/phrases higher

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