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Posted to users@opennlp.apache.org by Renaud Richardet <re...@gmail.com> on 2013/03/25 23:06:52 UTC

How to build confusion matrix with DoccatTrainer?

Hello,

Is there already a tool to create a confusion matrix for the
DoccatTrainer? Like
http://alias-i.com/lingpipe/docs/api/com/aliasi/classify/ConfusionMatrix.html?

Thanks, Renaud

Re: How to build confusion matrix with DoccatTrainer?

Posted by Renaud Richardet <re...@epfl.ch>.

Thanks Jörn for the pointer, will do.


On Tue, Mar 26, 2013 at 11:02 AM, Jörn Kottmann <ko...@gmail.com> wrote:
> Hello,
>
> no we do not have a confusion matrix report for docat, but we have
> one for the pos tagger.
>
> The code which computes it for the POSTagger is in the
> POSTaggerFineGrainedReportListener
> class in our cmdline.pos package.
>
> Looks like it should be possible to extract the code, move it into a util
> class and then reuse it
> for the other components in OpenNLP.
>
> Anyway, if you want to get this implemented, please open a jira and attach a
> patch we can pull
> in.
>
> Thanks,
> Jörn
>
>
> On 03/25/2013 11:06 PM, Renaud Richardet wrote:
>>
>> Hello,
>>
>> Is there already a tool to create a confusion matrix for the
>> DoccatTrainer? Like
>>
>> http://alias-i.com/lingpipe/docs/api/com/aliasi/classify/ConfusionMatrix.html?
>>
>> Thanks, Renaud
>
>



-- 
Renaud Richardet
Blue Brain Project  PhD candidate
EPFL  Station 15
CH-1015 Lausanne
phone: +41-78-675-9501
http://people.epfl.ch/renaud.richardet

Re: How to build confusion matrix with DoccatTrainer?

Posted by Jörn Kottmann <ko...@gmail.com>.

Hello,

no we do not have a confusion matrix report for docat, but we have
one for the pos tagger.

The code which computes it for the POSTagger is in the 
POSTaggerFineGrainedReportListener
class in our cmdline.pos package.

Looks like it should be possible to extract the code, move it into a 
util class and then reuse it
for the other components in OpenNLP.

Anyway, if you want to get this implemented, please open a jira and 
attach a patch we can pull
in.

Thanks,
Jörn

On 03/25/2013 11:06 PM, Renaud Richardet wrote:
> Hello,
>
> Is there already a tool to create a confusion matrix for the
> DoccatTrainer? Like
> http://alias-i.com/lingpipe/docs/api/com/aliasi/classify/ConfusionMatrix.html?
>
> Thanks, Renaud