[Keplerweka-developer] Easter release
Status: Beta
Brought to you by:
fracpete
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From: Peter R. <fra...@wa...> - 2009-04-09 02:31:40
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Hi there It has been quiet lately, I know. But the reason for this wasn’t that nothing happened on the coding front, I was way too busy at work. Anyhow, I’ve just uploaded a new release: 20090409 https://sourceforge.net/project/showfiles.php?group_id=256842&package_id=314839&release_id=674535 Since there were quite a few changes since the release in December last year, I’ll just briefly go over them: Actors ===== * Rename Allows you to modify the relation name of a weka.core.Instances or weka.core.Instance object * Evaluators (CV, random split, testset) These evaluators are now more robust, i.e., they don’t try to perform an evaluation if there isn’t sufficient data. * EvaluationValuePicker Lets you pick a particular statistic, e.g., Percent correct (= accuracy), from a provided weka.classifiers.Evaluation object. Very handy if you want to plot this value over time. * SequencePlotter I’ve upgraded Kepler’s SequencePlotter in order to be able to automatically update the plot after each arriving value. Normally, this is not encouraged, since the update is computationally rather expensive. But in the case of plotting statistics of a classifier evaluation, evaluating the classifier is way more expensive. * Classifying/Clustering These actors now allow you to specify a serialized model as well, no need to make use of the ModelReader actor. I added this property, since I needed to classify incoming weka.core.Instance objects with a serialized model. Triggering the read of a large SMO model from disk each time an Instance arrived wasn’t feasible, hence this optimization. * Filter The Filter actor now allows you to stream results through it. It is no longer necessary to first train it with a batch of data. Caution: In case of batch filters, the first Instance object arriving is used to initialized the filter. This is not desired for all filters (e.g., Normalized or Standardize). * ObjectToString A actor that allows you to inspect objects. You can use property paths or read methods to obtain information of an object’s internal state. Very handy for debugging. * OutputLogger If you want to capture the output on the command-line (stdout and stderr), then use this actor to redirect the output into a log file. Other stuff ========= * added scripts for updating the icons (update_icons.sh) and ontologies (update_ontologies.sh) - useful for developers Happy Easter!! :-) Cheers, Peter PS You can find this information also on the KeplerWeka blog: https://apps.sourceforge.net/wordpress/keplerweka/2009/04/09/easter-release/ -- Peter Reutemann, Dept. of Computer Science, University of Waikato, NZ http://www.cs.waikato.ac.nz/~fracpete/ Ph. +64 (7) 858-5174 |