Can Machine Learning Help Predict the Outcome of Asylum Adjudications?
Proceedings of the Association for Computing Machinery Conference on Artificial Intelligence and the Law, Forthcoming
12 Pages Posted: 30 Jul 2016 Last revised: 31 May 2017
Date Written: December 30, 2016
In this study, we analyzed 492,903 asylum hearings from 336 different hearing locations, rendered by 441 unique judges over a thirty-two year period from 1981-2013. We define the problem of asylum adjudication prediction as a binary classification task, and using the random forest method developed by Breiman (2001), we predict twenty-seven years of refugee decisions. Using only data available up to the decision date, our model correctly classifies 82 percent of all refugee cases by 2013. Our empirical analysis suggests that decision makers exhibit a fair degree of autocorrelation in their rulings, and extraneous factors such as, news and the local weather may be impacting the fate of an asylum seeker. Surprisingly, granting asylum is predominantly driven by trend features and judicial characteristics- features that may seem unfair- and roughly one third-driven by case information, news events, and court information.
Keywords: Quantitative legal prediction, Refugee, Machine learning
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