I am a Postdoctoral Fellow working with Prof. Monika Henzinger at the Faculty of Computer Science, University of Vienna. Before that, I have worked as a Postdoctoral Fellow in the City University of Hong Kong, the Hong Kong Polytechnic University, and the University of Hong Kong. I received my PhD degree from the University of Hong Kong under the supervision of Dr. Hubert Chan. I received my BEng degree from University of Science and Technology of China.

I will be joining the State Key Laboratory of Internet of Things for Smart City in the University of Macau as an assistant professor in March, 2020.

Research Interests

I am broadly interested in theoretical computer science, and its applications in data mining problems. More specifically, my research interests span various topics in online algorithms, approximation algorithms, data structure and truthful mechanism design.

Journal Publications

• Online Vertex Weighted Bipartite Matching: Beating 1-1/e with Random Arrivals

Zhiyi Huang, Zhihao Gavin Tang, Xiaowei Wu and Yuhao Zhang

ACM Transactions on Algorithms (TALG), 15(3), 38:1-38:15. 2019

• Diffusion operator and spectral analysis for directed hypergraph Laplacian

T-H. Hubert Chan, Zhihao Gavin Tang, Xiaowei Wu, and Chenzi Zhang

Theoretical Computer Science (TCS), 784: 46-64. 2019

• Ranking on Arbitrary Graphs: Rematch via Continuous Linear Programming

T-H. Hubert Chan, Fei Chen, Xiaowei Wu, and Zhichao Zhao

SIAM Journal on Computing (SICOMP), 47(4), 1529–1546. 2018

• Analyzing Node-Weighted Oblivious Matching Problem via Continuous LP with Jump Discontinuity

T-H. Hubert Chan, Fei Chen, Xiaowei Wu, and Zhichao Zhao

ACM Transactions on Algorithms (TALG), 14(2), 12:1–12:25. 2018

• On (1,\epsilon)-Restricted Max-Min Fair Allocation Problem

T-H. Hubert Chan, Zhihao Gavin Tang, and Xiaowei Wu

Algorithmica, 80(7), 2181–2200. 2018

• On Minimal Steiner Maximum-Connected Subgraph Queries

Jiafeng Hu, Xiaowei Wu, Reynold Cheng, Siqiang Luo, and Yixiang Fang

IEEE Transactions on Knowledge and Data Engineering (TKDE), 29(11): 2455-2469. 2017

• Finding k most influential edges on flow graphs

Petrie Wong, Cliz Sun, Eric Lo, Man Lung Yiu, Xiaowei Wu, Zhichao Zhao, T.-H. Hubert Chan, and Ben Kao

Information Systems, 65: 93-105. 2017

Selected Conference Publications

Online Algorithms

• Tight Competitive Ratios of Classic Matching Algorithms in the Fully Online Model

Zhiyi Huang, Binghui Peng, Zhihao Gavin Tang, Runzhou Tao, Xiaowei Wu and Yuhao Zhang. In SODA 2019.

• Online Makespan Minimization: The Power of Restart

Zhiyi Huang, Ning Kang, Zhihao Gavin Tang, Xiaowei Wu and Yuhao Zhang. In APPROX 2018. (pdf)

• Online Vertex Weighted Bipartite Matching: Beating 1-1/e with Random Arrivals

Zhiyi Huang, Zhihao Gavin Tang, Xiaowei Wu and Yuhao Zhang. In ICALP 2018. (pdf)

• How to Match when All Vertices Arrive Online

Zhiyi Huang, Ning Kang, Zhihao Gavin Tang, Xiaowei Wu, Yuhao Zhang and Xue Zhu. In STOC 2018. (pdf)

• Online Submodular Maximization Problem with Vector Packing Constraint

T-H. Hubert Chan, Shaofeng H.-C. Jiang, Zhihao Gavin Tang and Xiaowei Wu. In ESA 2017. (pdf)

Approximation Algorithms

• Towards a Better Understanding of Randomized Greedy Matching

Zhihao Gavin Tang, Xiaowei Wu and Yuhao Zhang. In STOC 2020. (pdf)

• On (1,\epsilon)-Restricted Max-Min Fair Allocation Problem

T-H. Hubert Chan, Zhihao Gavin Tang and Xiaowei Wu. In ISAAC 2016. (pdf)

• Beating Ratio 0.5 for Weighted Oblivious Matching Problems

Melika Abolhassani, T-H. Hubert Chan, Fei Chen, Hossein Esfandiari, MohammadTaghi Hajiaghayi, Hamid Mahini and Xiaowei Wu. In ESA 2016. (pdf)

• Ranking on Arbitrary Graphs: Rematch via Continuous LP with Monotone and Boundary Condition Constraints

T-H. Hubert Chan, Fei Chen, Xiaowei Wu and Zhichao Zhao. In SODA 2014. (pdf)

Misc.

• Defending with Shared Resources on a Network

Minming Li, Long Tran-Thanh and Xiaowei Wu. In AAAI 2020.

• Strategyproof and Approximately Maxmin Fair Share Allocation of Chores

Haris Aziz, Bo Li and Xiaowei Wu. In IJCAI 2019. (pdf)

• Maximin-Aware Allocations of Indivisible Goods

Hau Chan, Jing Chen, Bo Li and Xiaowei Wu. In IJCAI 2019. (pdf)

• Well-behaved Online Load Balancing Against Strategic Jobs

Bo Li, Minming Li and Xiaowei Wu. In AAMAS 2019.

• Maintaining Densest Subsets Efficiently in Evolving Hypergraphs

Shuguang Hu, Xiaowei Wu and T-H. Hubert Chan. In CIKM 2017. (pdf)

• Querying Minimal Steiner Maximum-Connected Subgraphs in Large Graphs

Jiafeng Hu, Xiaowei Wu, Reynold Cheng, Siqiang Luo and Yixiang Fang. In CIKM 2016. (pdf)

Last Modified: Feb 13, 2020