Datasets:
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---
language:
- en
tags:
- compas
- tabular_classification
- binary_classification
- UCI
pretty_name: Compas
size_categories:
- 1K<n<10K
task_categories:
- tabular-classification
configs:
- encoding
- two-years-recidividity
- two-years-recidividity-no-race
- priors-prediction
- priors-prediction-no-race
- race
license: cc
---
# Compas
The [Compas dataset](https://github.com/propublica/compas-analysis) for recidivism prediction.
Dataset known to have racial bias issues, check this [Propublica article](https://www.propublica.org/article/machine-bias-risk-assessments-in-criminal-sentencing) on the topic.
# Configurations and tasks
| **Configuration** | **Task** | Description |
|----------------------------------|---------------------------|-----------------------------------------------------------------|
| encoding | | Encoding dictionary showing original values of encoded features.|
| two-years-recidividity | Binary classification | Will the defendant be a violent recidivist? |
| two-years-recidividity-no-race | Binary classification | As above, but the `race` feature is removed. |
| priors-prediction | Regression | How many prior crimes has the defendant committed? |
| priors-prediction-no-race | Binary classification | As above, but the `race` feature is removed. |
| race | Multiclass classification | What is the `race` of the defendant? |
# Usage
```python
from datasets import load_dataset
dataset = load_dataset("mstz/compas", "two-years-recidividity")["train"]
```
# Features
|**Feature** |**Type** |**Description** |
|---------------------------------------|-----------|---------------------------------------|
|`sex` |`int64` | |
|`age` |`int64` | |
|`race` |`int64` | |
|`number_of_juvenile_fellonies` |`int64` | |
|`decile_score` |`int64` |Criminality score |
|`number_of_juvenile_misdemeanors` |`int64` | |
|`number_of_other_juvenile_offenses` |`int64` | |
|`number_of_prior_offenses` |`int64` | |
|`days_before_screening_arrest` |`int64` | |
|`is_recidivous` |`int64` | |
|`days_in_custody` |`int64` |Days spent in custody |
|`is_violent_recidivous` |`int64` | |
|`violence_decile_score` |`int64` |Criminality score for violent crimes |
|`two_years_recidivous` |`int64` | | |