Orange3 Conformal Prediction library
Conformal Prediction is an add-on for Orange3 data mining software package. It provides an extensive toolset for conformal prediction.
To install the add-on, run
python setup.py install
To register this add-on with Orange, but keep the code in the development directory (do not copy it to Python’s site-packages directory), run
python setup.py develop
The library in the add-on can be used in Python scripts. The add-on does not provide any GUI widgets.
The example below evaluates an inductive conformal predictor at 0.1 significance level on the Iris dataset (spliting it into a training and testing set in ratio 2:1). The nonconformity scores used by the conformal predictor are based on the probabilities returned by a Naive Bayes classifier.
import Orange import orangecontrib.conformal as cp tab = Orange.data.Table('iris') nc = cp.nonconformity.InverseProbability(Orange.classification.NaiveBayesLearner()) ic = cp.classification.InductiveClassifier(nc) r = cp.evaluation.run(ic, 0.1, cp.evaluation.RandomSampler(tab, 2, 1)) print(r.accuracy())
Please see doc/Orange-ConformalPrediction.pdf. Documentation in other formats can also be built using Sphinx from the doc directory.
Online documentation is available at https://orange3-conformal.readthedocs.io.
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