ARFF DataWriter

[Torsten Zesch]

Hi,

I want to use ClearTK's nice feature extraction capabilities to create
ARFF files (to be used with Weka).
As there seems to be no DataWriter for ARFF in ClearTK:
Has someone already written such a writer and would share the code?

While we talk about Weka:
Are there any specific obstacles in adding Weka support to ClearTK or
has simply nobody found time to do it, yet.
(I am thinking about trying to implement the necessary parts and don't
want to run into obvious traps).

-Torsten

[Lee Becker]

On Jan 26, 11:59 am, Torsten Zesch <torsten.ze...@googlemail.com>
wrote:

We have mostly steered away from Weka because of its Gnu General
Public License does not play too well with ClearTK's Apache license
(for more details see http://www.apache.org/licenses/GPL-compatibility.html).
That said, I know some people have written ARFF writers in the past,
and actually getting Weka to play with ClearTK shouldn't be too
difficult. It might make sense to include Weka DataWriters in our
code, but leave out any Weka distribution (Philip, Steve, thoughts?).

[Richard Eckart de Castilho]

Am 26.01.2012 um 20:10 schrieb Lee Becker:

> We have mostly steered away from Weka because of its Gnu General
> Public License does not play too well with ClearTK's Apache license
> (for more details see http://www.apache.org/licenses/GPL-compatibility.html).
> That said, I know some people have written ARFF writers in the past,
> and actually getting Weka to play with ClearTK shouldn't be too
> difficult. It might make sense to include Weka DataWriters in our
> code, but leave out any Weka distribution (Philip, Steve, thoughts?).

ClearTK provides wrappers for the Stanford tools which are GPL. It shouldn't be too much of a problem to wrap Weka as long as the core of ClearTK has no dependencies on that module.

Cheers,

-- Richard

[Philip Ogren]

The GPL is fine with our new project structure so long as we keep the dependency isolated. I think this would be a really important contribution.

I have written a nearly working Weka wrapper for ClearTK which I never polished up and released. There are a few difficulties with it that I cant remember off the top of my head. I will go dig around for the code and see if I can find anything that would help you get started.

Sent from my iPhone

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[Philip Ogren]

Torsten,

I spent some time resurrecting my Weka code this evening.  It looks like I wrote the training data writer part but didn't do the classifier - though I am certain that I have at one point figured out the necessary weka apis for this.  I wasn't able to get it cleaned up enough to check it into subversion.  I will give a status update by the end of this coming weekend.  

Cheers,

Philip

[Philip Ogren]

Torsten,

I have created an issue for this here:

http://code.google.com/p/cleartk/issues/detail?id=274 

It doesn't add anything to what's already been said here.  I hope to spend a couple hours on this still this afternoon and any updates I will will be posted to that issue.  

Philip

[Philip Ogren]

I plugged away on this a bit more this evening but am unable to commit any code just yet.  Perhaps this week.  I'm a bit under the weather just now.

[Torsten Zesch]

Thanks Philip. I am looking forward to any code you might be able to share.

-Torsten

2012/1/30 Philip Ogren <phi...@ogren.info>: