Search Results for author: Zhaohua Chen

Found 6 papers, 0 papers with code

Are Bounded Contracts Learnable and Approximately Optimal?

no code implementations22 Feb 2024 Yurong Chen, Zhaohua Chen, Xiaotie Deng, Zhiyi Huang

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.

Robust Decision Aggregation with Second-order Information

no code implementations23 Nov 2023 Yuqi Pan, Zhaohua Chen, Yuqing Kong

When the aggregator is deterministic, we present a robust aggregator that leverages second-order information, which can significantly outperform counterparts without it.

Coordinated Dynamic Bidding in Repeated Second-Price Auctions with Budgets

no code implementations13 Jun 2023 Yurong Chen, Qian Wang, Zhijian Duan, Haoran Sun, Zhaohua Chen, Xiang Yan, Xiaotie Deng

To the best of our knowledge, we are the first to consider bidder coordination in online repeated auctions with constraints.

On the Re-Solving Heuristic for (Binary) Contextual Bandits with Knapsacks

no code implementations25 Nov 2022 Rui Ai, Zhaohua Chen, Xiaotie Deng, Yuqi Pan, Chang Wang, Mingwei Yang

To the best of our knowledge, this is the first $\widetilde O(1)$ regret result in the CBwK problem regardless of information feedback models.

Management Multi-Armed Bandits

Dynamic Budget Throttling in Repeated Second-Price Auctions

no code implementations11 Jul 2022 Zhaohua Chen, Chang Wang, Qian Wang, Yuqi Pan, Zhuming Shi, Zheng Cai, Yukun Ren, Zhihua Zhu, Xiaotie Deng

Among various budget control methods, throttling has emerged as a popular choice, managing an advertiser's total expenditure by selecting only a subset of auctions to participate in.

CycLedger: A Scalable and Secure Parallel Protocol for Distributed Ledger via Sharding

no code implementations19 Jan 2020 Mengqian Zhang, Jichen Li, Zhaohua Chen, Hongyin Chen, Xiaotie Deng

Our protocol selects a leader and a partial set for each committee, who are in charge of maintaining intra-shard consensus and communicating with other committees, to reduce the amortized complexity of communication, computation, and storage on all nodes.

Distributed, Parallel, and Cluster Computing Cryptography and Security

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