4 papers
Selective Ambulance Dispatch Under Contextual Travel-Time Uncertainty
Zikun Lin, Daniel Zhuoyu Long, Viet Anh Nguyen
Ambulance response is time-critical in out-of-hospital cardiac arrest (OHCA), where dispatchers must balance timely arrivals with limited fleet capacity. Static territories and det…
From Optimization to Satisficing: Robust Screening under Distributional Ambiguity
Shumin Ma, Daniel Zhuoyu Long, Lijian Lu
This study investigates a robust screening problem under distributional ambiguity, where a seller is uncertain about a buyer's true valuation distribution, knowing only that it lie…
Fragility-aware Classification for Understanding Risk and Improving Generalization
Chen Yang, Zheng Cui, Daniel Zhuoyu Long +2
Classification models play a central role in data-driven decision-making applications such as medical diagnosis, recommendation systems, and risk assessment. Traditional performanc…
Asymptotically Optimal Distributionally Robust Solutions through Forecasting and Operations Decentralization
Yue Lin, Daniel Zhuoyu Long, Viet Anh Nguyen +1
Two-stage risk-averse distributionally robust optimization (DRO) problems are ubiquitous across many engineering and business applications. Despite their promising resilience, two-…