---
title: DefectRadar Annotation Tool
emoji: ⚖️
colorFrom: blue
colorTo: indigo
sdk: gradio
sdk_version: "5.33.0"
app_file: app.py
pinned: false
license: apache-2.0
---

# DefectRadar -- Annotation Tool

Human annotation tool for definitional defects in Ukrainian legislation.
Part of the **LegDefQA** benchmark construction for the DefectRadar paper.

## Task

Annotators classify pipeline-flagged definitions along two dimensions:

### Circulus in definiendo
- **TRUE_DEFECT**: Definition is normatively empty, adds no distinguishing criterion
- **DOMAIN_REUSE**: Root word repeats but definition is substantively meaningful
- **FALSE_POSITIVE**: Pipeline error, no actual overlap

### Ignotum per ignotum
- **CRITICAL**: Term undefined anywhere in the corpus, norm is inapplicable
- **CROSS_REF**: Term defined in another law, needs explicit reference
- **COMMON**: Well-known term, no definition needed
- **FALSE_POSITIVE**: Pipeline error, term is defined in the same law

## Data

- **Input**: 300 stratified definitions from 5,799 extracted from 44,021 active Ukrainian laws
- **Output**: Saved to [overthelex/defectradar-annotations](https://huggingface.co/datasets/overthelex/defectradar-annotations)

## Citation

```bibtex
@article{ovcharov2026defectradar,
  title={DefectRadar: Automated Detection of Definitional Defects in Legislation via Morpho-Semantic NLP Pipeline over 24,000 Ukrainian Laws},
  author={Ovcharov, Volodymyr and Kyrychenko, Ihor},
  year={2026}
}
```