You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@stanbol.apache.org by Andrea Di Menna <ni...@gmail.com> on 2012/11/23 11:39:27 UTC
OpenNLP models license
Hi all,
I am probably going to ask a question which has been already discussed
other times.
As far as I can read from [1] OpenNLP models are not released with a
Apache 2.0 Licence and are typically not released for commercial use.
When building Stanbol (full build - 0.10.0-SNAPSHOT), models are
downloaded from [2] and bundles are created, e.g.
- org.apache.stanbol.data.opennlp.lang.en-1.0.2-SNAPSHOT.jar
- org.apache.stanbol.data.opennlp.ner.en-1.0.2-SNAPSHOT.jar
Even though I am not copying models in the datafiles dir, it looks
like those models are anyway available in the stable launcher.
My questions follow:
1) Are the en model from lang and ner bundles licensed with a Apache
2.0 license?
2) Is there any safe/preferable way to remove those models from a
Stanbol instance without completely disrupting the Keyword Linking
engine?
I am wondering if those models are absolutely needed for the purpose
of Keyword Linking or if the related bundles can be safely removed
from the Felix console.
Thanks,
Andrea
[1] https://issues.apache.org/jira/browse/STANBOL-545
[2] http://opennlp.sourceforge.net/models-1.5/
Re: OpenNLP models license
Posted by "Pablo N. Mendes" <pa...@gmail.com>.
Nice thread on reddit about this:
http://www.reddit.com/r/MachineLearning/comments/13zvxe/ip_law_and_machine_learning_who_owns_the_model/
On Sat, Nov 24, 2012 at 11:07 AM, Rupert Westenthaler <
rupert.westenthaler@gmail.com> wrote:
> On Fri, Nov 23, 2012 at 11:39 AM, Andrea Di Menna <ni...@gmail.com>
> wrote:
> > Even though I am not copying models in the datafiles dir, it looks
> > like those models are anyway available in the stable launcher.
> >
> > My questions follow:
> > 1) Are the en model from lang and ner bundles licensed with a Apache
> > 2.0 license?
>
> No. This is the reason why you get Messages like that during the build
>
> *
> * WARNING - this build downloads some OpenNLP files that are *not*
> * licensed under the Apache License, and have more restrictive usage
> * terms than the Apache Stanbol code. See STANBOL-545 for more
> * information: https://issues.apache.org/jira/browse/STANBOL-545
> *
>
> > 2) Is there any safe/preferable way to remove those models from a
> > Stanbol instance without completely disrupting the Keyword Linking
> > engine?
>
> They KeywordLinking engine only requires Tokens. Those are also
> available if no models are present. However this will have an influence
> on the Results and the Performance.
>
> > I am wondering if those models are absolutely needed for the purpose
> > of Keyword Linking or if the related bundles can be safely removed
> > from the Felix console.
> >
>
> just exclude/remove all org.apache.stanbol.data.opennlp.* bundles
>
> Regarding Licenses: You will find a lot of relevant posts on the
> OpenNLP mailing lists.
>
> best
> Rupert
>
> >
> > [1] https://issues.apache.org/jira/browse/STANBOL-545
> > [2] http://opennlp.sourceforge.net/models-1.5/
>
>
>
> --
> | Rupert Westenthaler rupert.westenthaler@gmail.com
> | Bodenlehenstraße 11 ++43-699-11108907
> | A-5500 Bischofshofen
>
--
Pablo N. Mendes
http://pablomendes.com
Re: OpenNLP models license
Posted by Rupert Westenthaler <ru...@gmail.com>.
On Fri, Nov 23, 2012 at 11:39 AM, Andrea Di Menna <ni...@gmail.com> wrote:
> Even though I am not copying models in the datafiles dir, it looks
> like those models are anyway available in the stable launcher.
>
> My questions follow:
> 1) Are the en model from lang and ner bundles licensed with a Apache
> 2.0 license?
No. This is the reason why you get Messages like that during the build
*
* WARNING - this build downloads some OpenNLP files that are *not*
* licensed under the Apache License, and have more restrictive usage
* terms than the Apache Stanbol code. See STANBOL-545 for more
* information: https://issues.apache.org/jira/browse/STANBOL-545
*
> 2) Is there any safe/preferable way to remove those models from a
> Stanbol instance without completely disrupting the Keyword Linking
> engine?
They KeywordLinking engine only requires Tokens. Those are also
available if no models are present. However this will have an influence
on the Results and the Performance.
> I am wondering if those models are absolutely needed for the purpose
> of Keyword Linking or if the related bundles can be safely removed
> from the Felix console.
>
just exclude/remove all org.apache.stanbol.data.opennlp.* bundles
Regarding Licenses: You will find a lot of relevant posts on the
OpenNLP mailing lists.
best
Rupert
>
> [1] https://issues.apache.org/jira/browse/STANBOL-545
> [2] http://opennlp.sourceforge.net/models-1.5/
--
| Rupert Westenthaler rupert.westenthaler@gmail.com
| Bodenlehenstraße 11 ++43-699-11108907
| A-5500 Bischofshofen