Re: MISMO Classifier: how to set Instance Weights?

Peter Reutemann <[email protected]> Mon, 8 Jan 2024 08:49:49 +1300
Newsgroups gmane.comp.ai.weka
Message-ID <CAHoQ12JW3G6BJG7zd5hAQ0Cr07QWe7YHSzWEV8cSmBWNCmS9rA@mail.gmail.com>
> However, there is also an API method setChecksTurnedOff
> (https://weka.sourceforge.io/doc.packages/multiInstanceLearning/index.html?weka/classifiers/mi/MISMO.html)
> as well as a command-line option -no-checks. Are these the same?

No, these only affect the MISMO classifier itself, not the
PropositionalToMultiInstance filter which is used internally
(command-line options typically have API methods associated
get/set/tiptext).

> Because I've already tried those two methods and the error still happened.

That was also the first thing that I tried. :-)

My proposed workaround disables capabilities checks *globally*, which
can have unwanted side-effects when providing incorrect data. Hence to
be used with caution.

Just my 2c from way back when I was working on propositionalization...
- The MIWrapper usually outperformed all other MI methods.
- Applying the RELAGGS to your data could also be an option to explore:
  https://weka.sourceforge.io/doc.stable/weka/filters/unsupervised/attribute/RELAGGS.html

Cheers, Peter
-- 
Peter Reutemann
Dept. of Computer Science
University of Waikato, Hamilton, NZ
Mobile +64 22 190 2375
https://www.cs.waikato.ac.nz/~fracpete/
http://www.data-mining.co.nz/
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