Smalltalk › Pharo › Pharo Smalltalk Users

[ANN] Arff generator for Pharo

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

5 messages Options

Julien Delplanque

[ANN] Arff generator for Pharo

Hello everyone,

For a university project in ''Datamining and Datawarehousing'', I have
to convert data stored as text files in different formats to the Weka[1]
ARFF format[2].

I did it with Pharo of course! :)

So, I wrote this little project [3] to share what I have done with you,
just in case someone else needs to export data from Pharo objects to an
ARFF string for further analysis with Weka.

Cheers,

Julien

Links:

[1] Weka's website: http://www.cs.waikato.ac.nz/ml/weka/

[2] ARFF format spec: https://weka.wikispaces.com/ARFF

[3] Arff generator for Pharo: https://github.com/juliendelplanque/Arff

Damien Pollet-2

Re: [ANN] Arff generator for Pharo

So, ARFF is the file format… I propose that an OO modeling of it should be named the Attribute-Relation Graph Hierarchy

On 25 April 2016 at 13:37, Julien Delplanque <[hidden email]> wrote:

Hello everyone,

For a university project in ''Datamining and Datawarehousing'', I have to convert data stored as text files in different formats to the Weka[1] ARFF format[2].

I did it with Pharo of course! :)

So, I wrote this little project [3] to share what I have done with you, just in case someone else needs to export data from Pharo objects to an ARFF string for further analysis with Weka.

Cheers,

Julien

Links:

[1] Weka's website: http://www.cs.waikato.ac.nz/ml/weka/

[2] ARFF format spec: https://weka.wikispaces.com/ARFF

[3] Arff generator for Pharo: https://github.com/juliendelplanque/Arff

philippeback

Re: [ANN] Arff generator for Pharo

In reply to this post by Julien Delplanque

Hello Julien,

I am curious to know how much faster/slower you can do this vs people using other languages.

So?

Phil

On Mon, Apr 25, 2016 at 1:37 PM, Julien Delplanque <[hidden email]> wrote:

Hello everyone,

For a university project in ''Datamining and Datawarehousing'', I have to convert data stored as text files in different formats to the Weka[1] ARFF format[2].

I did it with Pharo of course! :)

So, I wrote this little project [3] to share what I have done with you, just in case someone else needs to export data from Pharo objects to an ARFF string for further analysis with Weka.

Cheers,

Julien

Links:

[1] Weka's website: http://www.cs.waikato.ac.nz/ml/weka/

[2] ARFF format spec: https://weka.wikispaces.com/ARFF

[3] Arff generator for Pharo: https://github.com/juliendelplanque/Arff

Julien Delplanque

Re: [ANN] Arff generator for Pharo

Took me 1 hour to create 1 object/concept and the visitor.

My classmates probably did it with Python but not in the spirit to share
it so I guess it took them less time but it is not reusable... :)

Then some time to document, write the baseline and the mail.

Julien

On 25/04/16 14:09, [hidden email] wrote:

> Hello Julien,
>
> I am curious to know how much faster/slower you can do this vs people using
> other languages.
>
> So?
>
> Phil
>
> On Mon, Apr 25, 2016 at 1:37 PM, Julien Delplanque <[hidden email]> wrote:
>
>> Hello everyone,
>>
>> For a university project in ''Datamining and Datawarehousing'', I have to
>> convert data stored as text files in different formats to the Weka[1] ARFF
>> format[2].
>>
>> I did it with Pharo of course! :)
>>
>> So, I wrote this little project [3] to share what I have done with you,
>> just in case someone else needs to export data from Pharo objects to an
>> ARFF string for further analysis with Weka.
>>
>> Cheers,
>>
>> Julien
>>
>> Links:
>>
>> [1] Weka's website: http://www.cs.waikato.ac.nz/ml/weka/
>>
>> [2] ARFF format spec: https://weka.wikispaces.com/ARFF
>>
>> [3] Arff generator for Pharo: https://github.com/juliendelplanque/Arff
>>
>>
>>
>>
>>

Julien Delplanque

Re: [ANN] Arff generator for Pharo

In reply to this post by Damien Pollet-2

argh, here take my +1 for this mail :p

On 25/04/16 14:08, Damien Pollet wrote:

> So, ARFF is the file format… I propose that an OO modeling of it should be
> named the Attribute-Relation Graph Hierarchy
>
> :D
>
> On 25 April 2016 at 13:37, Julien Delplanque <[hidden email]> wrote:
>
>> Hello everyone,
>>
>> For a university project in ''Datamining and Datawarehousing'', I have to
>> convert data stored as text files in different formats to the Weka[1] ARFF
>> format[2].
>>
>> I did it with Pharo of course! :)
>>
>> So, I wrote this little project [3] to share what I have done with you,
>> just in case someone else needs to export data from Pharo objects to an
>> ARFF string for further analysis with Weka.
>>
>> Cheers,
>>
>> Julien
>>
>> Links:
>>
>> [1] Weka's website: http://www.cs.waikato.ac.nz/ml/weka/
>>
>> [2] ARFF format spec: https://weka.wikispaces.com/ARFF
>>
>> [3] Arff generator for Pharo: https://github.com/juliendelplanque/Arff
>>
>>
>>
>>