auphong2707/hospital-readmission-phase4-lgbm-threshold

Hospital Readmission Risk - Phase 4: Threshold Optimization Results

This repository contains the results from Phase 4: Optimal Threshold & ROI Analysis.

Contents

Outputs

• outputs/optimal_thresholds.json: Optimal decision threshold and risk category thresholds
• outputs/roi_metrics.json: Comprehensive ROI metrics
• outputs/roi_report.txt: Human-readable ROI analysis report
• outputs/threshold_results.csv: Expected value across all tested thresholds

Visualizations

1. Expected Value vs Threshold Curve
2. Cost-Benefit Analysis
3. Classification Metrics vs Threshold
4. Confusion Matrix at Optimal Threshold
5. Risk Category Distribution
6. ROI Sensitivity Analysis
7. Intervention Volume Forecast
8. Cost Savings Projection

Usage

These results can be used for:

• Implementing the optimal decision threshold in production
• Defining risk categories for clinical decision support
• Justifying intervention programs to stakeholders
• Planning resource allocation
• Proceeding to Phase 5: Fairness Evaluation

Citation

If you use these results, please cite the hospital readmission risk prediction project.