3 papers
q-fin.ST2026
Effort-Centric Fairness in Lending Decisions
Shiqi Fang, Zexun Chen, Jake Ansell
Algorithmic credit scoring must satisfy fairness and explanation requirements, yet prevailing predictive-parity criteria assess only outcomes at the decision point. They can theref…
stat.ME2026
When is multivariate kriging worthwhile? A design-geometry analysis of heterotopic multi-output Gaussian processes
Zexun Chen, Jun Fan, Kuo Wang
Simulation experiments, multi-fidelity computer models and monitoring networks often produce several related outputs observed at different input locations, a sampling pattern known…
stat.ML2026
Bridging Structured Knowledge and Data: A Unified Framework with Finance Applications
Yi Cao, Zexun Chen, Lin William Cong +1
We develop Structured-Knowledge-Informed Neural Networks (SKINNs), a unified estimation framework that embeds theoretical, simulated, previously learned, or cross-domain insights a…