collaborators

7 papers

math.OC2026

Online Fair Allocation of Perishable Resources

Siddhartha Banerjee, Chamsi Hssaine, Sean R. Sinclair

We consider a practically motivated variant of the canonical online fair allocation problem: a decision-maker has a budget of perishable resources to allocate over a fixed number o…

math.OC2026

Sequential Fair Allocation and Routing in Nonprofit Operations

Haiqing Gao, Seyed M. R. Iravani, Sean R. Sinclair

We study a dynamic fair sequential allocation problem in which a central planner distributes a divisible resource across multiple locations under demand uncertainty. Motivated by a…

math.OC2026

The Data-Driven Censored Newsvendor Problem

Chamsi Hssaine, Sean R. Sinclair

We study a censored variant of the data-driven newsvendor problem, where the decision-maker must select an ordering quantity that minimizes expected overage and underage costs base…

cs.LG2026

Offline-Online Reinforcement Learning for Linear Mixture MDPs

Zhongjun Zhang, Sean R. Sinclair

We study offline-online reinforcement learning in linear mixture Markov decision processes (MDPs) under environment shift. In the offline phase, data are collected by an unknown be…

math.OC2025

Sequential Fair Allocation With Replenishments: A Little Envy Goes An Exponentially Long Way

Chido Onyeze, Sean R. Sinclair, Chamsi Hssaine +1

We study the trade-off between envy and inefficiency in repeated resource allocation settings with stochastic replenishments, motivated by real-world systems such as food banks and…

stat.ML2025

Reinforcement Learning in MDPs with Information-Ordered Policies

Zhongjun Zhang, Shipra Agrawal, Ilan Lobel +2

We propose an epoch-based reinforcement learning algorithm for infinite-horizon average-cost Markov decision processes (MDPs) that leverages a partial order over a policy class. In…