4 citations · 11 across the 13 of their papers we have counts for
13 papers
Pareto-Efficient Multi-Buyer Mechanisms: Characterization, Fairness and Welfare
Moshe Babaioff, Sijin Chen, Zhaohua Chen +1
A truthful mechanism for a Bayesian single-item auction results with some ex-ante revenue for the seller, and some ex-ante total surplus for the buyers. We study the Pareto frontie…
Ad Insertion in LLM-Generated Responses
Shengwei Xu, Zhaohua Chen, Xiaotie Deng +2
Sustainable monetization of large language models (LLMs) remains a critical open challenge. Traditional search advertising, which relies on static keywords, fails to capture the fl…
Are Bounded Contracts Learnable and Approximately Optimal?
Yurong Chen, Zhaohua Chen, Xiaotie Deng +1
This paper considers the hidden-action model of the principal-agent problem, in which a principal incentivizes an agent to work on a project using a contract. We investigate whethe…
Robust Decision Aggregation with Second-order Information
Yuqi Pan, Zhaohua Chen, Yuqing Kong
We consider a decision aggregation problem with two experts who each make a binary recommendation after observing a private signal about an unknown binary world state. An agent, wh…
Coordinated Dynamic Bidding in Repeated Second-Price Auctions with Budgets
Yurong Chen, Qian Wang, Zhijian Duan +4
In online ad markets, a rising number of advertisers are employing bidding agencies to participate in ad auctions. These agencies are specialized in designing online algorithms and…
Contextual Decision-Making with Knapsacks Beyond the Worst Case
Zhaohua Chen, Rui Ai, Mingwei Yang +3
We study the framework of a dynamic decision-making scenario with resource constraints. In this framework, an agent, whose target is to maximize the total reward under the initial…
Dynamic Budget Throttling in Repeated Second-Price Auctions
Zhaohua Chen, Chang Wang, Qian Wang +6
In today's online advertising markets, a crucial requirement for an advertiser is to control her total expenditure within a time horizon under some budget. Among various budget con…
Budget-Constrained Auctions with Unassured Priors: Strategic Equivalence and Structural Properties
Zhaohua Chen, Mingwei Yang, Chang Wang +5
In today's online advertising markets, it is common for advertisers to set long-term budgets. Correspondingly, advertising platforms adopt budget control methods to ensure that adv…
An Efficient and Robust Committee Structure for Sharding Blockchain
Mengqian Zhang, Jichen Li, Zhaohua Chen +2
Nowadays, sharding is deemed as a promising way to save traditional blockchain protocols from their low scalability. However, such technique also brings several potential risks and…
On Tightness of Tsaknakis-Spirakis Descent Methods for Approximate Nash Equilibria
Zhaohua Chen, Xiaotie Deng, Wenhan Huang +2
This article explores the minimum approximation ratio for Nash equilibrium in bi-matrix games, focusing on the Tsaknakis and Spirakis (TS) methods. The previous SOTA, TS algorithm,…
Decentralized Asset Custody Scheme with Security against Rational Adversary
Zhaohua Chen, Guang Yang
Asset custody is a core financial service in which the custodian holds in-safekeeping assets on behalf of the client. Although traditional custody service is typically endorsed by…
An Efficient Permissioned Blockchain with Provable Reputation Mechanism
Hongyin Chen, Zhaohua Chen, Yukun Cheng +5
The design of permissioned blockchains places an access control requirement for members to read, access, and write information over the blockchains. In this paper, we study a hiera…
CycLedger: A Scalable and Secure Parallel Protocol for Distributed Ledger via Sharding
Mengqian Zhang, Jichen Li, Zhaohua Chen +2
Traditional public distributed ledgers have not been able to scale-out well and work efficiently. Sharding is deemed as a promising way to solve this problem. By partitioning all n…