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From Dawid Weiss <>
Subject Re: A reference to a commercial algorithm in comments - is this all right?
Date Sun, 08 Sep 2013 19:16:52 GMT
I think less configuration there is an improvement :)

The problem seems to be that "carrot.algorithm" can be any clustering
component that plugs into the Carrot2 framework -- including our
commercial algorithm (I don't think there's anything else besides
that). We suck at brand differentiation and many of our customer have
found it difficult to tell the difference between Carrot2, Lingo,
Lingo3G and where to put the configuration bits and pieces in Solr
code. So while it doesn't harm any users of the open source algorithms
it helps those already using (or willing to try) the commercial
algorithm to locate the relevant bits.


On Sun, Sep 8, 2013 at 8:57 PM, Simon Willnauer
<> wrote:
> I don't think it's an issue - if it helps users to conclude how to get
> it I think it's actually an improvement!
> simon
> On Sun, Sep 8, 2013 at 8:50 PM, Dawid Weiss
> <> wrote:
>> As part of a recent commit I cleaned up the comments surrounding the
>> clustering extension in the Solr example. As part of this I added
>> comments concerning configuration of clustering algorithms in the
>> Carrot2 framework, but also a helpers that refer to our commercial
>> clustering algorithm Lingo3G. They seem harmless to me, as in:
>>       <!-- Class name of a clustering algorithm compatible with the Carrot2
>>            framework.
>>            Currently available open source algorithms are:
>>            * org.carrot2.clustering.lingo.LingoClusteringAlgorithm
>>            *
>>            * org.carrot2.clustering.kmeans.BisectingKMeansClusteringAlgorithm
>>            See for more information.
>>            A commercial algorithm Lingo3G (needs to be installed
>> separately) is defined as:
>>            * com.carrotsearch.lingo3g.Lingo3GClusteringAlgorithm
>>         -->
>>       <str name="carrot.algorithm">org.carrot2.clustering.lingo.LingoClusteringAlgorithm</str>
>> I admit the reason I included these was not to promote the algorithm,
>> but to limit the number of support requests we get where users are not
>> sure how to modify Solr configuration to use Lingo3G out of the box...
>> Is this something that is ok or does it bother anybody? If so, let me
>> know and I will remove those two references from comments.
>> Dawid
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