Group Fairness Constraint
Group fairness constraints in machine learning aim to mitigate algorithmic bias by ensuring that models treat different demographic groups equitably, preventing discriminatory outcomes. Current research focuses on developing algorithms and model architectures (including graph neural networks and spectral clustering methods) that incorporate fairness constraints during training or post-processing, often employing techniques like Gini coefficient minimization or thresholding bias scores to achieve various fairness notions (e.g., demographic parity, equalized opportunity). This work is crucial for ensuring fairness in high-stakes applications like loan approvals and criminal justice, promoting ethical and responsible use of machine learning.