Debo Cheng

Assessing the Fairness of Classifiers with Collider Bias.

2020 · arXiv (Cornell University)

The increasing maturity of machine learning technologies and their applications to decisions relate to everyday decision making have brought concerns about the fairness of the decisions. However, current fairness assessment systems often suffer from collider …

Peer Effect Estimation in the Presence of Simultaneous Feedback and Unobserved Confounders

2025 · arXiv (Cornell University)

Estimating peer causal effects within complex real-world networks such as social networks is challenging, primarily due to simultaneous feedback between peers and unobserved confounders. Existing methods either address unobserved confounders while ignoring the simultaneous feedback, …