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The mission of the group is to develop knowledge and seek truth in the field of theoretical computer science as well as to train the talents of students. We are interested in the design of algorithms and analysis of the computational complexity for many problems abstracting from the issue in our real life. The current research area includes model and algorithm design in social network, algorithmic game theory, combinatorial optimization, online algorithms, quantum computing, communication complexity, decision-tree complexity, etc.

Currently, the group contains 4 faculty members (including 1 professor, 1 associate professor and 2 assistant professors), 2 affiliated faculty members and 13 students. The group enjoys frequent visits by well-known scientists from all over the world each year. A small number of visitors for a longer period of time are also available. For more detailed information about our academic exchange, please refer to ref sigma.ict.ac.cn. In addition, the group also works in close collaboration with other universities and research centers such as Tsinghua University, Microsoft Research Asia, and so on. With a vibrant research environment, the group is on its way to become an outstanding group on theoretical computer science.

Upcoming Seminars

Quantum algorithms for machine learning and optimization . Dec. 23, 14:00

超导量子计算与量子云计算 . Nov. 15, 10:30

基于主成分分析的量子数据降维算法 . Nov. 07, 14:00

Upcoming Events

TCS Youth Forum (16th Oct., 2019)

Algorithmic Aspects in Information and Management (AAIM Aug. 2019)

Recent Publications

Xiaohui Bei, Shiteng Chen, Ji Guan, Youming Qiao, Xiaoming Sun: From independent sets and vertex colorings to isotropic spaces and isotropic decompositions: Another bridge between graphs and alternating matrix spaces. ITCS 2020 Accepted.arXiv: 1904.03950

Feidiao Yang, Jiaqing Jiang, Xiaoming Sun, Jialin Zhang: Revisiting Online Quantum State Learning. AAAI 2020 Accepted.

Riling Li, Bujiao Wu, Mingsheng Ying, Xiaoming Sun, Guangwen Yang: Quantum Supremacy Circuit Simulation on Sunway TaihuLight. IEEE Transactions on Parallel and Distributed Systems (2019, Accepted). arXiv: 1804.04797

Jiaqing Jiang, Xiaoming Sun, Shang-Hua Teng, Bujiao Wu, Kewen Wu, Jialin Zhang: Optimal Space-Depth Trade-Off of CNOT Circuits in Quantum Logic Synthesis. SODA 2020 Accepted. arXiv: 1907.05087

Xiaohui Bei, Xiaoming Sun, Hao Wu, Jialin Zhang, Zhijie Zhang, Wei Zi: Cake Cutting on Graphs: A Discrete and Bounded Proportional Protocol. SODA 2020 Accepted. arXiv: 1907.05083

Jiaqing Jiang, Xiaoming Sun, Yuan Sun, Kewen Wu, Zhiyu Xia: Structured decomposition for reversible Boolean functions. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (2019, Accepted). arXiv: 1810.04279

Kun He, Qian Li, Xiaoming Sun and Jiapeng Zhang: Quantum Lovász Local Lemma: Shearer's Bound is Tight. STOC 2019. arXiv: 1804.07055

Faculty
Xiaoming Sun Xiaoming Sun
decision tree complexity, quantum computing, communication complexity, combinatorics and social network
Jialin Zhang Jialin Zhang
distributed computing theory, algorithmic game theory, social network, smoothed analysis and combinatorial optimization
Guang Yang Guang Yang
Foundation of Cryptography, Randomness and Derandomization, Online agorithms and Streaming Computation, Game Theory, Learning Theory
Guojing Tian Guojing Tian
Quantum Entanglement, Quantum Nonlocality, Local Discrimination of Quantum State, Quantum Coherence, Quantum Computing
Affiliated Faculty
Dongbo Bu
algorithm design and analysis, including the SAT problem, information retrieval and bioinformatics
Wei Chen
social and information networks, online learning, algorithmic game theory, Internet economics, distributed computing and fault tolerance
Postgraduates & Visiting Students
Zhihuai Chen
doctoral candidate
Feidiao Yang
doctoral candidate
Bujiao Wu
doctoral candidate
Pei Yuan
doctoral candidate
Zhiyu Xia
doctoral candidate
Yuan Sun
doctoral candidate
Zhijie Zhang
master candidate
Jiaqing Jiang
master candidate
Xiaoyu He
master candidate
Shuai Yang
master candidate
Lifu Shou
master candidate
Junhong Nie
doctoral candidate
Shuo Zhang
doctoral candidate
Chenglong Wang
master candidate
Zuzhi Chen
master candidate
QinLin Zhu
master candidate
Alumni
Jia Zhang
Microsoft Research Asia
Xiaohan Shan
Tsinghua University
Qian Li
Shenzhen Institute of Computer Sciences, Shenzhen University
Qiang Li
Kuaishou
Gang Zeng
Kuaishou
Kun He
Shenzhen Institute of Computer Sciences, Shenzhen University
Fall 2012
    2020
  • Xiaohui Bei, Shiteng Chen, Ji Guan, Youming Qiao, Xiaoming Sun: From independent sets and vertex colorings to isotropic spaces and isotropic decompositions: Another bridge between graphs and alternating matrix spaces. ITCS 2020 Accepted.
  • Feidiao Yang, Jiaqing Jiang, Xiaoming Sun, Jialin Zhang: Revisiting Online Quantum State Learning. AAAI 2020 Accepted.
  • Jiaqing Jiang, Xiaoming Sun, Shang-Hua Teng, Bujiao Wu, Kewen Wu, Jialin Zhang: Optimal Space-Depth Trade-Off of CNOT Circuits in Quantum Logic Synthesis. SODA 2020 Accepted. arXiv: 1907.05087
  • Xiaohui Bei, Xiaoming Sun, Hao Wu, Jialin Zhang, Zhijie Zhang, Wei Zi: Cake Cutting on Graphs: A Discrete and Bounded Proportional Protocol. SODA 2020 Accepted. arXiv: 1907.05083
  • 2019
  • Kun He, Qian Li, Xiaoming Sun: A tighter relation between sensitivity complexity and certificate complexity. Theoretical Computer Science 762: 1-12 (2019), with a earlier version published in COCOON 2017. arXiv: 1609.04342
  • Riling Li, Bujiao Wu, Mingsheng Ying, Xiaoming Sun, Guangwen Yang: Quantum Supremacy Circuit Simulation on Sunway TaihuLight. IEEE Transactions on Parallel and Distributed Systems (2019, Accepted). arXiv: 1804.04797
  • Jiaqing Jiang, Xiaoming Sun, Yuan Sun, Kewen Wu, Zhiyu Xia: Structured decomposition for reversible Boolean functions. IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (2019, Accepted). arXiv: 1810.04279
  • Xiaoming Sun, Yuan Sun, Kewen Wu, Zhiyu Xia: On the Relationship between Energy Complexity and other Boolean Function Measures. COCOON 2019. arXiv: 1810.03811
  • Xiaoming Sun, Yuan Sun, Zhiyu Xia, Jialin Zhang: The One-Round Multi-player Discrete Voronoi Game on Grids and Trees. COCOON 2019.
  • Xiaohan Shan, Wei Chen, Qiang Li, Xiaoming Sun, Jialin Zhang: Cumulative activation in social networks. Science China Information Sciences (2019). [PDF]
  • Luis Barba, Malte Milatz, Jerri Nummenpalo, Xiaoming Sun, Antonis Thomas, Jialin Zhang, Zhijie Zhang: The Complexity of Optimization on Grids. Algorithmica (2019).
  • Zhihuai Chen, Yinan Li, Xiaoming Sun, Pei Yuan, Jialin Zhang: A Quantum-inspired Classical Algorithm for Separable Non-negative Matrix Factorizations. IJCAI 2019.
  • David P. Woodruff and Guang Yang. Separating k-Player from t-Player One-Way Communication, with Applications to Data Streams. ICALP 2019. arXiv: 1905.07135
  • Xiaoming Sun, David P. Woodruff, Guang Yang and Jialin Zhang: Querying a Matrix through Matrix-Vector Products. ICALP 2019. arXiv: 1906.05736
  • Kun He, qian Li, Xiaoming Sun and Jiapeng Zhang: Quantum Lovász Local Lemma: Shearer's Bound is Tight. STOC 2019. arXiv: 1804.07055
  • 2018
  • Feidiao Yang, Tiancheng Jin, Tie-Yan Liu, Xiaoming Sun, Jialin Zhang: Boosting dynamic programming with neural networks for solving NP-hard problems. ACML 2018, pp. 726-739 (Best student paper) [PDF]
  • Bujiao Wu, Jiaqing Jiang, Jialin Zhang, Guojing Tian, Xiaoming Sun: Local unitary classification for sets of generalized Bell states. Phys. Rev. A 98, 022304 arXiv: 1711.06026
  • Xiaoyu He, Neng Huang, Xiaoming Sun. On the Decision Tree Complexity of String Matching. ESA2018 arXiv: 1712.09738
  • Wei Chen, Xiaohan Shan, Xiaoming Sun, Jialin Zhang. Coreness of Cooperative Games with Truncated Submodular Profit Functions. SAGT2018 arXiv: 1806.10833
  • Qian Li, and Xiaoming Sun. On the Module Degree Complexity of Boolean Functions. Accepted by Theoretical Computer Science.
  • Jiaqing Jiang, Jialin Zhang, Xiaoming Sun: Quantum-to-quantum Bernoulli factory problem. Phys.Rev.A. 97, 032303. arXiv: 1712.09817
  • 2017
  • Qin Huang, Xingwu Liu, Xiaoming Sun, Jialin Zhang: Partial Sorting Problem on Evolving Data. Algorithmica 79(3): 960-983 (2017)
  • Xiaoming Sun, Jia Zhang, Jialin Zhang: Near optimal algorithms for online weighted bipartite matching in adversary model. J. Comb. Optim. 34(3): 689-705 (2017)
  • Qiang Li, Wei Chen, Xiaoming Sun, Jialin Zhang: Influence Maximization with ε-Almost Submodular Threshold Function. NIPS 2017.
  • Kun He, Liang Li, Xingwu Liu, Yuyi Wang and Mingji Xia: Variable Version Lovász Local Lemma: Beyond Shearer's Bound. FOCS 2017.
  • Kun He, Qian Li, Xiaoming Sun: A Tighter Relation Between Sensitivity Complexity and Certificate Complexity. COCOON 2017: 262-274
  • Qian Li, Xiaoming Sun: On the Modulo Degree Complexity of Boolean Functions. COCOON 2017: 384-395
  • Qian Li, Xiaoming Sun: On the Sensitivity Complexity of k-Uniform Hypergraph Properties. STACS 2017: 51:1-51:12
  • Jia Zhang, Zheng Wang, Qian Li, Jialin Zhang, Yanyan Lan, Qiang Li, Xiaoming Sun: Efficient Delivery Policy to Minimize User Traffic Consumption in Guaranteed Advertising. AAAI 2017: 252-258
  • Jia Zhang, Weidong Ma, Tao Qin, Xiaoming Sun, Tie-Yan Liu: Randomized Mechanisms for Selling Reserved Instances in Cloud Computing. AAAI 2017: 750-757
  • 2016
  • Periklis Papakonstantinou, Jia Xu, Guang Yang: On the Power of Distance-Based Learning. ICML 2016: 2263–2271.
  • Qian Li, Xiaoming Sun, Jialin Zhang: On the Optimality of Tape Merge of Two Lists with Similar Size. ISAAC 2016: 51:1-51:17
  • Periklis Papakonstantinou, David Woodruff and Guang Yang: True Randomness from Big Data. Scientific Reports, 6:33740, 2016.
  • Benny Applebaum, Sergei Artemenko, Ronen Shaltiel, Guang Yang: Incompressible Functions, Relative-Error Extractors, and the Power of Nondeterministic Reductions. Computational Complexity 25(2): 349-418 (2016)
  • Tie-Yan Liu, Weidong Ma, Tao Qin, Pingzhong Tang, and Bo Zheng: Online Non-Preemptive Story Scheduling in Web Advertising. AAMAS 2016: 269-227
  • Xiaohui Bei, Wei Chen, Jugal Garg, Martin Hoefer, Xiaoming Sun: Learning Market Parameters Using Aggregate Demand Queries. AAAI 2016: 411-417
  • Qizhi Fang, Bo Li, Xiaoming Sun, Jia Zhang, Jialin Zhang: Computing the least-core and nucleolus for threshold cardinality matching games. Theor. Comput. Sci. 609: 500-510 (2016)
  • Gang Zeng, Yuyi Wang, Juhua Pu, Xingwu Liu, Xiaoming Sun, Jialin Zhang: Communities in Preference Networks: Refined Axioms and Beyond. IEEE International Conference on Data Mining (ICDM 2016).
  • Yiming Zou, Gang Zeng, Yuyi Wang, Xingwu Liu, Xiaoming Sun, Jialin Zhang, Qiang Li: Shortest Paths on Evolving Graphs. CSoNet 2016: 1-13
  • Wei Chen, Qiang Li, Xiaoming Sun, Jialin Zhang: The Routing of Complex Contagion in Kleinberg's Small-World Networks. COCOON 2016: 307-318
  • 2015
  • Xiaoming Sun, David P. Woodruff: Tight Bounds for Graph Problems in Insertion Streams. APPROX-RANDOM 2015: 435-448
  • Minming Li, Jialin Zhang, Qiang Zhang: Truthful Cake Cutting Mechanisms with Externalities: Do Not Make Them Care for Others Too Much! IJCAI 2015: 589-595
  • Qin Huang, Xingwu Liu, Xiaoming Sun, Jialin Zhang: How to Select the Top k Elements from Evolving Data? ISAAC 2015: 60-70
  • Raghav Kulkarni, Youming Qiao, Xiaoming Sun: On the Power of Parity Queries in Boolean Decision Trees. TAMC 2015: 99-109
  • Raghav Kulkarni, Youming Qiao, Xiaoming Sun: Any monotone property of 3-uniform hypergraphs is weakly evasive. Theor. Comput. Sci. 588: 16-23 (2015)
  • Qizhi Fang, Bo Li, Xiaohan Shan, Xiaoming Sun: The Least-Core and Nucleolus of Path Cooperative Games. COCOON 2015: 70-82
  • Qiang Li, Maojie Gu, Keren Zhou, Xiaoming Sun: Multi-Classes Feature Engineering with Sliding Window for Purchase Prediction in Mobile Commerce. ICDM Workshops 2015: 1048-1054
  • Zhihao Yi, Danning Wang, Kai Hu, Qiang Li: Purchase Behavior Prediction in M-Commerce with an Optimized Sampling Methods. ICDM Workshops 2015: 1085-1092
  • 2014
  • Andris Ambainis, Mohammad Bavarian, Yihan Gao, Jieming Mao, Xiaoming Sun, Song Zuo: Tighter Relations between Sensitivity and Other Complexity Measures. ICALP 2014: 101-113
  • Yi Li, Xiaoming Sun, Chengu Wang, David P. Woodruff: On the Communication Complexity of Linear Algebraic Problems in the Message Passing Model. DISC 2014: 499-513
  • Xiaoming Sun, Jia Zhang, Jialin Zhang: Solving Multi-choice Secretary Problem in Parallel: An Optimal Observation-Selection Protocol. ISAAC 2014: 661-673
  • Qizhi Fang, Bo Li, Xiaoming Sun, Jia Zhang, Jialin Zhang: Computing the Least-Core and Nucleolus for Threshold Cardinality Matching Games. WINE 2014: 474-479
  • Peng Zhang, Wei Chen, Xiaoming Sun, Yajun Wang, Jialin Zhang: Minimizing seed set selection with probabilistic coverage guarantee in a social network. KDD 2014: 1306-1315

Address: No.6 Kexueyuan South Road Zhongguancun, Haidian District, Beijing, China

Postcode: 100190     Telephone: 010-62600853