Neural Legal Judgment Prediction in English
About
Legal judgment prediction is the task of automatically predicting the outcome of a court case, given a text describing the case's facts. Previous work on using neural models for this task has focused on Chinese; only feature-based models (e.g., using bags of words and topics) have been considered in English. We release a new English legal judgment prediction dataset, containing cases from the European Court of Human Rights. We evaluate a broad variety of neural models on the new dataset, establishing strong baselines that surpass previous feature-based models in three tasks: (1) binary violation classification; (2) multi-label classification; (3) case importance prediction. We also explore if models are biased towards demographic information via data anonymization. As a side-product, we propose a hierarchical version of BERT, which bypasses BERT's length limitation.
Related benchmarks
| Task | Dataset | Result | Rank | |
|---|---|---|---|---|
| Binary violation prediction | ECHR Non-Anonymized (test) | Macro Precision0.904 | 7 | |
| Multi-label violation prediction | ECHR all labels (test) | Precision65.9 | 5 | |
| Multi-label violation prediction | ECHR frequent labels, >=50 instances (test) | Precision66 | 5 | |
| Case Importance Prediction | ECHR | MAE0.437 | 5 | |
| Binary violation prediction | ECHR anonymized (test) | Macro Precision85.2 | 5 | |
| Multi-label violation prediction | ECHR few labels, [1,50) instances (test) | Precision43.6 | 4 |