1. Abstract
The Fair Credit-Scoring Framework is an Explainable AI project designed to evaluate credit-scoring models for fairness, transparency, and predictive performance. It uses Machine Learning and fairness assessment techniques to analyze credit application data, identify potential disparities across demographic groups, and explain the factors influencing credit-risk predictions. The framework helps researchers and financial institutions evaluate responsible AI practices in credit assessment.
2. Objectives
- Develop a machine learning-based credit-scoring model.
- Evaluate fairness across relevant demographic groups.
- Identify potential bias in credit-risk predictions.
- Explain predictions using Explainable AI techniques.
- Compare model accuracy and fairness metrics.
- Explore bias mitigation techniques.
- Generate transparent credit-model audit reports.
3. Existing System
Traditional credit-scoring systems use statistical models or machine learning to estimate credit risk, but their fairness and interpretability may not be adequately evaluated.
Disadvantages
- Limited transparency in complex models.
- Potential disparities across demographic groups.
- Historical data may contain biased patterns.
- Accuracy metrics alone do not measure fairness.
- Manual auditing can be time-consuming.
4. Proposed System
The proposed framework combines credit-risk prediction, Explainable AI, and fairness evaluation to assess model behavior.
Key features:
- Credit dataset upload and preprocessing.
- Credit-risk classification and score estimation.
- Group-wise performance and selection-rate analysis.
- Fairness metrics such as demographic parity difference and equal opportunity difference.
- SHAP-based feature importance and individual explanations.
- Bias mitigation experiments.
- Accuracy-versus-fairness comparison dashboard.
- Downloadable fairness and model evaluation reports.
5. Implementation Procedure
- Obtain a suitable credit dataset for research.
- Clean the data and handle missing values.
- Prepare numerical and categorical features.
- Split the dataset into training, validation, and test sets.
- Train models such as Logistic Regression, Decision Tree, or Random Forest.
- Evaluate predictive performance using precision, recall, F1-score, and ROC-AUC.
- Calculate fairness metrics across relevant demographic groups.
- Explain predictions using SHAP or LIME.
- Apply appropriate bias mitigation techniques and compare results.
- Build a dashboard to visualize model performance and fairness findings.
- Generate an audit report documenting limitations and results.
6. Software Requirements
- Programming Language: Python
- Frontend: Streamlit
- ML Libraries: Scikit-learn, Pandas, NumPy
- Fairness Toolkit: Fairlearn or AI Fairness 360
- Explainable AI: SHAP or LIME
- Visualization: Matplotlib or Plotly
- Database: SQLite or PostgreSQL
- Development Environment: VS Code or Jupyter Notebook
- Operating System: Windows or Linux
7. Hardware Requirements
- Processor: Intel Core i3 or equivalent
- RAM: Minimum 8 GB; 16 GB recommended
- Storage: At least 10 GB free space
- GPU: Not required for standard tabular ML models
- Internet: Required for online deployment and data access
8. Advantages of the Project
- Evaluates fairness in credit-scoring models.
- Identifies potential disparities between demographic groups.
- Explains factors influencing credit-risk predictions.
- Compares model performance before and after mitigation.
- Supports transparent model auditing.
- Encourages responsible and accountable AI development.