Any updates on this? It certainly would be quite interesting to see how well carrot2 clustering can be integrated with solr, I suppose it's a fairly similar concept to simple faceting (maybe another candidate for SOLR-281 component?).
One concern I have is that the additional processing required at query time would make the whole operation significant slower (which is something I'd like to avoid). I've been wondering if it might be possible to calculate (and store) clustering information at index time however since carrot2 seems to use the query term & result set to create clustering info this doesn't appear to be a practical approach. In a similar vein, I'm also looking at methods of term extraction and automatic keyword generation from indexed documents. I've been experimenting with MoreLikeThis and values returned by the " mlt.interestingTerms" parameter, which has potential but needs a bit of refinement before it can be truely useful. Has anybody else discovered clever or useful methods of term extraction using solr? Piete On 02/08/07, Burkamp, Christian <[EMAIL PROTECTED]> wrote: > > Hi, > > In my opinion the results from carrot2 clustering could be used in the > same way that facet results are used. > That's the way I'm planning to use them. > The user of the search application can narrow the search by selecting one > of the facets presented in the search result presentation. These facets > could come from metadata (classic facets) or from dynamically computed > categories which are results from carrot2. > > From this point of view it would be most convenient to have the > integration for carrot2 directly in the StandardRequestHandler. This leaves > questions open like "how should filters for categories from carrot2 be > formulated". > > Is anybody already using carrot2 with solr? > > -- Christian > > -----Ursprüngliche Nachricht----- > Von: [EMAIL PROTECTED] [mailto: [EMAIL PROTECTED] Im Auftrag von > Stanislaw Osinski > Gesendet: Mittwoch, 1. August 2007 14:01 > An: solr-user@lucene.apache.org > Betreff: Re: solr + carrot2 > > > > > > Has anyone looked into using carrot2 clustering with solr? > > > > I know this is integrated with nutch: > > > > http://lucene.apache.org/nutch/apidocs/org/apache/nutch/clustering/car > > rot2/Clusterer.html > > > > It looks like carrot has support to read results from a solr index: > > > > http://demo.carrot2.org/head/api/org/carrot2/input/solr/package-summar > > y.html > > > > But I'm hoping for something that returns clustered results from solr. > > > > Carrot also has something to read lucene indexes: > > > > http://demo.carrot2.org/head/api/org/carrot2/input/lucene/package-summ > > ary.html > > > > Any pointers or experience before I (may) delve into this? > > > > First of all, apologies for a delayed response. I'm one of Carrot2 > developers and indeed we did some Solr integration, but from Carrot2's > perspective, which I guess will not be directly useful in this case. If you > have any ideas for integration, questions or requests for changes/patches, > feel free to post on Carrot2 mailing list or file an issue for us. > > Thanks, > > Staszek >
