4 papers
Dynamic Mechanism Design without Monetary Transfers: A Queueing Theory Approach
Zihao Li, Xuandong Chen
We study the design of optimal allocation mechanisms in an environment where agents and goods arrive stochastically. Agents have private types that determine the principal payoff.…
Leveraging Large Language Models for Causal Discovery: a Constraint-based, Argumentation-driven Approach
Zihao Li, Fabrizio Russo
Causal discovery seeks to uncover causal relations from data, typically represented as causal graphs, and is essential for predicting the effects of interventions. While expert kno…
Randomized coordinate gradient descent almost surely escapes strict saddle points
Ziang Chen, Yingzhou Li, Zihao Li
We analyze the behavior of randomized coordinate gradient descent for nonconvex optimization, proving that under standard assumptions, the iterates almost surely escape strict sadd…
Selling Consumer Data under Limited Commitment
Zihao Li
A data broker repeatedly negotiates with a producer who has privately known production costs and values consumer data for price discrimination. The broker cannot commit to future o…