Predictive Faithfulness
Learn to evaluate the predictive faithfulness of an explanation using the Prediction Gap on Important feature perturbation (PGI) metric.
Predictive faithfulness measures the faithfulness of a post-hoc explanation in the absence of a ground-truth explanation. Prediction Gap on Important feature perturbation (PGI) is a popular predictive faithfulness metric that measures the difference in the prediction probability that results from perturbing the Top-k influential features of the given post-hoc explanation.
In other words, given a post-hoc explanation
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