My name in simplified Chinese: 陈炤桦 (Chén Zhàohuà).

I am currently a second-year Ph.D student at Center on Frontiers of Computing Studies (CFCS), School of Computer Science, Peking University, honered to be advised by Prof. Xiaotie Deng. I received my BSc (Summa Cum Laude) in artificial intelligence (Turing class) from Peking University, 2021.

• Email: chenzhaohua@pku.edu.cn, caezoah@gmail.com
• My Google Scholar Page
• My dblp Page
• My resume (Last updated: 2023-05-05)

I am much interested in the interplay of computer science and economics, also known as algorithmic game theory. More specifically, I am currently working on various problems in ad auctions. Previously, I have worked on the scalability issue of blockchain, when I mainly focused on the application of game theory and mechanism design in the field of blockchain.

Contextual Bandits with Knapsacks beyond Worst Cases via Re-Solving
(Previous name: On the Re-Solving Heuristic for (Binary) Contextual Bandits with Knapsacks)
Rui Ai, Zhaohua Chen, Xiaotie Deng, Yuqi Pan, Chang Wang, and Mingwei Yang
arXiv: 2211.13952

Dynamic Budget Throttling in Repeated Second-Price Auctions
Zhaohua Chen*, Chang Wang*, Qian Wang*, Yuqi Pan, Zhuming Shi, Zheng Cai, Yukun Ren, Zhihua Zhu, and Xiaotie Deng
arXiv: 2207.04690

Budget-Constrained Auctions with Unassured Priors: Strategic Equivalence and Structural Properties
Zhaohua Chen*, Xiaotie Deng*, Jicheng Li*, Chang Wang*, Mingwei Yang*, Zheng Cai, Yukun Ren, and Zhihua Zhu
arXiv: 2203.16816
SSRN: 4071291

On Tightness of Tsaknakis-Spirakis Descent Methods for Approximate Nash Equilibria
Zhaohua Chen, Xiaotie Deng, Wenhan Huang, Hanyu Li, and Yuhao Li
Information and Computation
doi: 10.1016/j.ic.2023.105046

An Efficient and Robust Committee Structure for Sharding Blockchain
Mengqian Zhang*, Jichen Li*, Zhaohua Chen*, Hongyin Chen*, and Xiaotie Deng
IEEE Transactions on Cloud Computing
doi: 10.1109/TCC.2022.3217856 (Early access)

A Provable Softmax Reputation-based Protocol for Permissioned Blockchains
Hongyin Chen*, Zhaohua Chen*, Yukun Cheng, Xiaotie Deng, Wenhan Huang, Jichen Li, Hongyi Ling*, and Mengqian Zhang
IEEE Transactions on Cloud Computing
doi: 10.1109/TCC.2021.3130244

Coordinated Dynamic Bidding in Repeated Second-Price Auctions with Budgets
Yurong Chen, Zhaohua Chen, Xiaotie Deng, Zhijian Duan, Haoran Sun, Qian Wang, and Xiang Yan
ICML 2023

Decentralized Asset Custody Scheme with Security against Rational Adversary
Zhaohua Chen and Guang Yang
WINE 2021
doi: 10.1007/978-3-030-94676-0_25
arXiv: 2008.10895
Cryptology ePrint Archive: 2020/1229

On Tightness of the Tsaknakis-Spirakis Algorithm for Approximate Nash Equilibrium
Zhaohua Chen, Xiaotie Deng, Wenhan Huang, Hanyu Li*, and Yuhao Li
SAGT 2021
doi: 10.1007/978-3-030-85947-3_7

An Efficient Permissioned Blockchain Model with Provable Reputation Mechanism
Hongyin Chen*, Zhaohua Chen*, Yukun Cheng, Xiaotie Deng, Wenhan Huang, Jichen Li, Hongyi Ling*, and Mengqian Zhang
ICDCS 2021 (Poster)
doi: 10.1109/ICDCS51616.2021.00123
arXiv: 2002.06852

CycLedger: A Scalable and Secure Parallel Protocol for Distributed Ledger via Sharding
Mengqian Zhang*, Jichen Li*, Zhaohua Chen*, Hongyin Chen*, and Xiaotie Deng
IPDPS 2020 (Best paper nominee)
doi: 10.1109/IPDPS47924.2020.00045
arXiv: 2001.06778

CN112419060A. Asset hosting system, asset management method, node and medium (资产托管系统、资产管理方法、节点及介质)
Inventor: YANG GUANG (杨光), CHEN ZHAOHUA (陈炤桦), WU MING (伍鸣), LONG FAN (龙凡), LI CHENXING (李辰星)

Advisor:
Billiards   Yuanpei College, Peking University, 2023.03 -- 2023.06
Billiards   Yuanpei College, Peking University, 2022.10 -- 2022.12

Teaching Assistant:
Study and Practice on Topics of Frontier Computing (Ⅱ)   Peking University, 2023.02 -- 2023.06
Study and Practice on Topics of Frontier Computing (Ⅰ)   Peking University, 2022.09 -- 2023.01
Discrete Math and Structures (Ⅰ)   Peking University, 2021.09 -- 2022.01
Discrete Math and Structures (Ⅰ)   Peking University, 2020.09 -- 2021.01
Blockchain Theory and Technique   Peking University, 2019.09 -- 2020.01

Conference Reviewing: GameSec 2021, IPDPS 2020

Journal Reviewing: SIAM Journal on Computing

Volunteer Experience: CSIAM-BTAF 2021, IJTCS 2021 (Undergraduate Research Forum Chair), WINE 2020 (Volunteer Group Leader, in Local Organization Committee), IJTCS 2020

I indulge in billiards. Billiards is like breath to me. I'm now in the billiards team of Peking University.
I love snooker, of course. Yet I'm not good at that.
I love basketball and shuttlecock as well.
I also play table tennis.

My favorite snooker player is Kyren Wilson.
I'm a super fan of Golden State Warriors in NBA.

I love guitar. I began playing guitar as I was deeply impressed by Tayu Lo (罗大佑) and Jonathan Lee (李宗盛). I learned to play some Kotaro Oshio's music when getting started. Nevertheless, due to the increasing work and pressure, I haven't played guitar for two years or so. I'm now trying to get it back.

Last updated: 2023-05-24.