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pat-alt committed Jan 17, 2023
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2 changes: 1 addition & 1 deletion README.qmd
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The chart below illustrates what we define as macrodynamics in Algorithmic Recourse: (a) we have a simple linear classifier trained for binary classification where samples from the negative class ($y=0$) are marked in blue and samples of the positive class ($y=1$) are marked in orange; (b) the implementation of AR for a random subset of individuals leads to a noticable domain shift; (c) as the classifier is retrained we observe a corresponding model shift; (d) as this process is repeated, the decision boundary moves away from the target class.

![](cover.png)
![](paper/www/poc.png)

## Abstract

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html:
theme: cosmo
epub:
cover-image: cover.png
cover-image: paper/www/poc.png

execute:
freeze: auto
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## Mitigation Strategies

In the paper, we propose three simple mitigation strategies:

1. More Conservative Decision Thresholds
2. Classifier Preserving ROAR
3. Gravitational Counterfactual Explanations

@fig-mitigate shows an illustrative example that demonstrates the differences in counterfactual outcomes when using the various mitigation strategies compared to the baseline approach, that is, Wachter with $\gamma=0.5$: choosing a higher decision threshold pushes the counterfactual a little further into the target domain; this effect is even stronger for ClaPROAR; finally, using the Gravitational generator the counterfactual ends up all the way inside the target domain.

```{julia}
#| output: true
#| label: fig-mitigate
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