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Message-ID: <440C17B0.6000101@cs.put.poznan.pl>
Date: Mon, 06 Mar 2006 12:06:24 +0100
From: Dawid Weiss <dawid.weiss@cs.put.poznan.pl>
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To: java-user@lucene.apache.org
Subject: Re: carrot2 vs. vivisimo
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Hello,

> my team has been working for the last couple of days on integrating
> carrot2 into our project as a sort of src (search result clustering)
> solution.

Great to hear this; is there a public URL or something?

> i was rather impressed with the results, until i checked out
> vivisimo's demo and saw a bit of a difference quality wise,

Well, we're not exactly a multi-million company, so quality might not be 
identical, you know ;)

> has anyone thoroughly compared the two? algorithm wise and quality

Undoable. Vivivismo is a commercial company, noone knows what they're 
using. Quality is hard to define either as clustering is usually 
ambiguous. Carrot2 also has a commercial spin off and the commercial 
algorithm is faster and gives slightly better results, so you might want 
to check out that option -- www.carrotsearch.com

We're also tuning the open source algorithms and installations. Let us 
know if you need it (it's a consulting service and we charge for that).

Dawid
www.carrot2.org

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