Improving the Fairness of Deep-Learning, Short-term Crime Prediction with Under-reporting-aware Models
This addresses fairness issues in crime prediction for minority groups, but it is incremental as it builds on existing approaches.
The paper tackled unfair predictions across minority racial and ethnic groups in deep-learning crime prediction tools by proposing a novel architecture that combines pre-processing and in-processing methods, resulting in improved fairness at the cost of reduced accuracy.
Deep learning crime predictive tools use past crime data and additional behavioral datasets to forecast future crimes. Nevertheless, these tools have been shown to suffer from unfair predictions across minority racial and ethnic groups. Current approaches to address this unfairness generally propose either pre-processing methods that mitigate the bias in the training datasets by applying corrections to crime counts based on domain knowledge or in-processing methods that are implemented as fairness regularizers to optimize for both accuracy and fairness. In this paper, we propose a novel deep learning architecture that combines the power of these two approaches to increase prediction fairness. Our results show that the proposed model improves the fairness of crime predictions when compared to models with in-processing de-biasing approaches and with models without any type of bias correction, albeit at the cost of reducing accuracy.