Yongkun Li (李永坤)

Professor （特任教授） School of Computer Science and Technology University of Science and Technology of China Email: ykli at ustc dot edu dot cn yongkunlee at gmail dot com Office: Rm 601, High Performance Computing Center USTC (East Campus)

Biography

Yongkun Li is a professor in School of Computer Science and Technology, University of Science and Technology of China. Before that, he was a postdoctoral fellow at Institute of Network Coding, working with Prof. John C. S. Lui and Prof. Patrick P. C. Lee. He received his Ph.D. degree in Computer Science from The Chinese University of Hong Kong in August 2012, advised by Prof. John C. S. Lui, and Bachelor's degree in Computer Science from University of Science and Technology of China in July 2008. He is now mainly focusing on data-intensive computing and storage systems, parallel and ditributed systems, key-value systems, and cloud computing, etc. He is a member of CCF/ACM/IEEE, and a member of Youth Innovation Promotion Association CAS.

Research Interests

• Large-scale parallel/distributed storage systems, with emphasis on file systems, memory systems, key-value systems, SSDs, NVRAM, etc.
• Virtualization and cloud computing, with emphasis on memory management and resource scheduling for VM, containers, and serverless computing, etc.
• Storage support for various applications, such as machine learning systems, graph analysis, and distributed DB, etc.

Selected Publications

Conference/Workshop/Poster Papers

• Tao Li, Yongkun Li*, Wenzhe Zhu, Yinlong Xu and John C.S. Lui.
  "MinFlow: High-performance and Cost-efficient Data Passing for I/O-intensive Stateful Serverless Analytics."
  The 22nd USENIX Conference on File and Storage Technologie (FAST 2024), USA, Feb. 27–29, 2024.


• Xianzhi Zhu, Yongkun Li*, Lulu Yao, Zhihao Qi, Yinlong Xu, Pengcheng Wang, Weiguang Wang, Xia Zhu.
  "On Optimizing Traffic Scheduling for Multi-replica Containerized Microservices."
  International Conference on Parallel Processing (ICPP 2023), Salt Lake City, UTAH, USA, August 7th - 10th, 2023.
  


• Wenzhe Zhu, Yongkun Li*, Erci Xu, Fei Li, Yinlong Xu and John C.S. Lui.
  "DiffForward: On Balancing Forwarding Traffic for Modern Cloud Block Services via Differentiated Forwarding".
  ACM (Sigmetrics 2023), Orlando, Florida, USA, June 19-22, 2023.


• Yipeng Xing, Yongkun Li*, Zhiqiang Wang, Yinlong Xu, John C.S. Lui.
  "LightTraffic: On Optimizing CPU-GPU Data Traffic for Efficient Large-scale Random Walks."
  IEEE International Conference on Data Engineering (ICDE 2023), Anaheim, California, USA, April 3–7, 2023.


• Haoyu Mao, Yongkun Li*, Wenzhe Zhu, Fei Li, Yinlong Xu.
  "On Optimizing Traffic Imbalance in Large-scale Block-based Cloud Storage: Trace Analysis and Algorithm Design."
  IEEE International Conference on Parallel and Distributed Systems (ICPADS 2022), Nanjing, China, January 10-12, 2023.


• Rui Wang, Shuibing He, Weixu Zong, Yongkun Li, Yinlong Xu.
  "XPGraph: XPline-Friendly Persistent Memory Graph Stores for Large-Scale Evolving Graphs."
  Proceedings of the 55th ACM/IEEE International Symposium on Microarchitecture (MICRO 2022), Chicago, Illinois, USA, October 1–5, 2022.


• Shuai Lin, Rui Wang, Yongkun Li*, Yinlong Xu, John C.S. Lui, Fei Chen, Pengcheng Wang, Lei Han.
  "Towards Fast Large-scale Graph Analysis via Two-dimensional Balanced Partitioning."
  51th International Conference on Parallel Processing (ICPP 2022), Virtual Conference, August 29th - September 1st, 2022.
  


• Qianli Wang, Si Wu, Yongkun Li, Yinlong Xu, Fei Chen, Pengcheng Wang, Lei Han.
  "HPUCache: Toward High Performance and Resource Utilization in Clustered Cache via Data Copying and Instance Merging."
  Proceedings of IEEE/ACM 30th International Symposium on Quality of Service (IWQoS 2022), Virtual Conference, June 10-12, 2022.
  


• Si Wu, Qingpeng Du, Patrick P. C. Lee, Yongkun Li, Yinlong Xu.
  "Optimal Data Placement for Stripe Merging in Locally Repairable Codes."
  Proceedings of IEEE International Conference on Computer Communications (INFOCOM 2022), London, UK, May 2-5, 2022.
  (AR: 225/1129 = 19.9%)


• Qiang Zhang, Yongkun Li*, Patrick P. C. Lee, Yinlong Xu, and Si Wu.
  "DEPART: Replica Decoupling for Distributed Key-Value Storage."
  Proceedings of the 20th USENIX Conference on File and Storage Technologies (FAST 2022), Santa Clara, CA, USA, February 22-24, 2022.
  (AR: 28/130 = 21.5%)


• Lulu Yao, Yongkun Li*, Jiawei Li, Weijie Wu, and Yinlong Xu.
  "Progressive Memory Adjustment with Performance Guarantee in Virtualized Systems."
  50th International Conference on Parallel Processing (ICPP 2021), Illinois, USA, August 9-12, 2021.
  (AR: 87/329 = 26.4%)


• Yongkun Li, Zhen Liu, Patrick P. C. Lee, Jiayu Wu, Yinlong Xu, Yi Wu, Liu Tang, Qi Liu, and Qiu Cui.
  "Differentiated Key-Value Storage Management for Balanced I/O Performance."
  Proceedings of the 2021 USENIX Annual Technical Conference (USENIX ATC 2021), July 14-16, 2021.
  (AR: 64/341 = 18.8%)


• Pei Yi, Hong Xie, Yongkun Li, John C.S. Lui.
  "A Bootstrapping Approach to Optimize Random Walk Based Statistical Estimation over Graphs."
  IEEE International Conference on Data Engineering (ICDE 2021), Greece, April 19-22, 2021.


• Rui Wang, Yongkun Li*, Hong Xie, Yinlong Xu, John C.S. Lui.
  "GraphWalker: An I/O-Efficient and Resource-Friendly Graph Analytic System for Fast and Scalable Random Walks."
  Proceedings of the 2020 USENIX Annual Technical Conference (USENIX ATC 2020), Boston, MA, USA, July 2020.
  (AR: 65/348 = 18.6%)


• Zhang Qiang, Yongkun Li*, Patrick P. C. Lee, Yinlong Xu, Qiu Cui, Liu Tang.
  "UniKV: Toward High-Performance and Scalable KV Storage in Mixed Workloads via Unified Indexing."
  Proceedings of the 36th IEEE International Conference on Data Engineering (ICDE 2020), Dallas, TX, USA, April 20-24, 2020.
  


• Fan Guo, Yongkun Li*, Min Lv, Yinlong Xu, John C.S. Lui.
  "HP-Mapper: A High Performance Storage Driver for Docker."
  Proceedings of the ACM Symposium on Cloud Computing 2019 (SoCC 2019), Santa Cruz, CA, USA, November 20-23, 2019.
  (AR: 39/157 = 24.8%)


• Fan Guo, Yongkun Li*, John C.S. Lui, Yinlong Xu.
  "DCUDA: Dynamic GPU Scheduling with Live Migration Support."
  Proceedings of the ACM Symposium on Cloud Computing 2019 (SoCC 2019), Santa Cruz, CA, USA, November 20-23, 2019.
  (AR: 39/157 = 24.8%)


• Lingjing You, Yongkun Li, Fan Guo, Yinlong Xu, Jinzhong Chen and Liu Yuan.
  "Leveraging Array Mapped Tries in KSM for Lightweight Memory Deduplication".
  IEEE International Conference on Networking, Architecture, and Storage (NAS 2019), China, August 15-17, 2019.
  


• Yongkun Li, Chengjin Tian, Fan Guo, Cheng Li, and Yinlong Xu.
  "ElasticBF: Elastic Bloom Filter with Hotness Awareness for Boosting Read Performance in Large Key-Value Stores".
  Proceedings of the 2019 USENIX Annual Technical Conference (ATC 2019), RENTON, WA, USA, July 10-12, 2019.
  (AR: 71/356 = 20%)


• Zhipeng Li, Min Lv, Yinlong Xu, Yongkun Li, and Liangliang Xu.
  "D3: Deterministic Data Distribution for Efficient Data Reconstruction in Erasure-Coded Distributed Storage Systems".
  33rd IEEE International Parallel and Distributed Processing Symposium (IPDPS 2019), Brazil, May 20-24, 2019.
  


• Yongkun Li, Zhiyong Wu, Shuai Lin, Hong Xie, Min Lv, Yinlong Xu, John C.S. Lui.
  "Walking with Perception: Efficient Random Walk Sampling via Common Neighbor Awareness".
  35th IEEE International Conference on Data Engineering (ICDE 2019), Macau, SAR, China, April 8-11, 2019.
  


• Xie Hong, Yongkun Li, John C.S. Lui.
  "Understanding Persuasion Cascades in Online Product Rating Systems".
  Thirty-Third AAAI Conference on Artificial Intelligence (AAAI 2019), Hawaii, USA, January 27-February 1, 2019.
  


• Xie Hong, Yongkun Li, John C.S. Lui.
  "Optimizing Discount \& Reputation Trade-offs in E-commerce Systems: Characterization and Online Learning".
  Thirty-Third AAAI Conference on Artificial Intelligence (AAAI 2019), Hawaii, USA, January 27-February 1, 2019.
  


• Caiyin Liu, Min Lv, Yubiao Pan, Hao Chen, Yongkun Li, Cheng Li and Yinlong Xu.
  "LCR: Load-aware Cache Replacement Algorithm for Flash-based SSDs".
  IEEE International Conference on Networking, Architecture, and Storage (NAS 2018), Chongqing, China, October 11-14, 2018.
  


• Helen H. W. Chan, Yongkun Li*, Patrick P. C. Lee, and Yinlong Xu.
  "HashKV: Enabling Efficient Updates in KV Storage via Hashing".
  Proceedings of the 2018 USENIX Annual Technical Conference (ATC 2018), Boston, MA, USA, July 11-13, 2018.
  (AR: 76/378 = 20.1%)


• Fan Guo, Junping Zhao, Yongkun Li*, Kun Wang, Yinlong Xu, John C. S. Lui.
  "DCUDA: Dynamic GPU Sharing via Live Migration".
  Proceedings of the 2018 USENIX Annual Technical Conference, Poster (ATC 2018 Poster), Boston, MA, USA, July 11-13, 2018.


• Yueming Zhang, Yongkun Li*, Fan Guo, Cheng Li, Yinlong Xu.
  "ElasticBF: Fine-grained and Elastic Bloom Filter Towards Efficient Read for LSM-tree-based KV Stores".
  The 10th USENIX Workshop on Hot Topics in Storage and File Systems (HotStorage 2018), Boston, MA, USA, July 9-10, 2018.


• Zhiyong Wu, Yongkun Li, Patrick P.C. Lee and Yinlong Xu.
  "Modeling SSD RAID Reliability under General Settings".
  ACM International Conference on Computing Frontiers 2018 (ACM CF 2018), Ischia, Italy, May 8-10, 2018.
  


• Chen Yang, Min Lyu, Yongkun Li, Qianqian Zhao and Yinlong Xu.
  "SSRW: A Scalable Algorithm for Estimating Graphlet Statistics Based on Random Walk."
  The 23rd International Conference on Database Systems for Advanced Applications (DASFAA 2018), Australia, May 21-24, 2018.
  


• Jiqiang Chen, Yinlong Xu, Yongkun Li.
  "Page Management for Hybrid Memory Systems."
  SOSP 2017 Poster, Shanghai, China, October 28-31, 2017.
  


• Qiang Zhang, Jie Liang, Yinlong Xu, Yongkun Li.
  "Research of SSD Array Architecture Based on Workload Awareness."
  National Conference of Information Storage (CCF 全国信息存储技术学术年会), Xi'an, China, September 20-22, 2017.
  优秀论文.
  


• Jiawei Li, Fan Guo, Junming Liu, Yinlong Xu, Yongkun Li.
  "Optimization on Memory Deduplication for Spark."
  National Conference of Information Storage (CCF 全国信息存储技术学术年会), Xi'an, China, September 20-22, 2017.
  


• Jie Liang, Yinlong Xu, Yongkun Li, Yubiao Pan.
  "ISM - An Intra-Stripe Data Migration Approach for RAID-5 Scaling."
  Proceedings of The 12th IEEE International Conference on Networking, Architecture, and Storage (NAS 2017), Shenzhen, China, August 7-9, 2017.
  


• Zhipeng Li, Yinlong Xu, Yongkun Li, Chengjin Tian, Youhui Bai.
  "PDS: An I/O-Efficient Scaling Scheme for Parity Declustered Data Layout."
  Proceedings of the 46th International Conference on Parallel Processing (ICPP 2017), Bristol, UK, August 14-17, 2017.
  


• Fan Guo, Yongkun Li*, Yinlong Xu, Song Jiang, John C. S. Lui.
  "SmartMD: A High Performance Deduplication Engine with Mixed Pages."
  Proceedings of the 2017 USENIX Annual Technical Conference (ATC 2017), Santa Clara, CA, USA, July 12-14, 2017.
  (AR: 60/283 = 21.2%)


• Shuzhan Wei, Yongkun Li*, Yinlong Xu, and Si Wu.
  "DSC: Dynamic Stripe Construction for Asynchronous Encoding in Clustered File System."
  IEEE International Conference on Computer Communications (INFOCOM 2017), Atlanta, USA, May 1-4, 2017.
  


• Pengpeng Zhao, Yongkun Li*, Hong Xie, Zhiyong Wu, Yinlong Xu, John C. S. Lui.
  "Measuring and Maximizing Influence via Random Walk in Social Activity Networks."
  The 22nd International Conference on Database Systems for Advanced Applications (DASFAA 2017), Suzhou, China, March 27-30, 2017.
  


• Xiaowei Chen, Yongkun Li, Pinghui Wang, and John C.S. Lui.
  "A General Framework for Estimating Graphlet Statistics via Random Walk."
  The VLDB Conference, Munich, Germany, August 28-September 1, 2017.
  


• Weitao Zhang, Yinlong Xu, Yongkun Li,and Dinglong Li.
  "Improving Write Performance of LSMT-based Key-Value Store."
  Proceedings of The 22nd IEEE International Conference on Parallel and Distributed Systems (ICPADS 2016), Wuhan, China, December 13-16, 2016.
  


• Youxu Chen, Yinlong Xu, Yongkun Li,and Jun Xu.
  "Balanced Parity Update Algorithm with Queueing Length Awareness for RAID Arrays."
  Proceedings of The 22nd IEEE International Conference on Parallel and Distributed Systems (ICPADS 2016), Wuhan, China, December 13-16, 2016.
  


• Rui Wang, Zhiyong Wu, Yongkun Li, and Yinlong Xu
  "Fast Graph Centrality Computation via Sampling: A Case Study of Influence Maximization over OSNs."
  CCF BigData, Lanzhou, China, October 11-13, 2016.
  


• Gaoying Ju, Yongkun Li, Yinlong Xu, Jiqiang Chen and John C. S. Lui.
  "Stochastic Modeling of Hybrid Cache Systems."
  Proceedings of The 24th IEEE Modeling, Analysis and Simulation of Computer and Telecommunication Systems (MASCOTS 2016), London, UK, September 19-21, 2016.
  


• Dongdong Sun, Yinlong Xu, Yongkun Li, Si Wu, and Chengjin Tian.
  "Efficient Parity Update for Scaling RAID-like Storage Systems."
  Proceedings of The 11th IEEE International Conference on Networking, Architecture, and Storage (NAS 2016), Long Beach, CA, USA, August 8-10, 2016.
  


• Yongkun Li, Helen H. W. Chan, Patrick P. C. Lee, and Yinlong Xu.
  "Elastic Parity Logging for SSD RAID Arrays."
  Proceedings of the 46th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2016) (Regular paper), Toulouse, France, June 28-July 1, 2016.
  (AR: 58/259 = 22.4%)


• Neng Wang, Yinlong Xu, Yongkun Li, and Si Wu.
  "OI-RAID: A Two-layer RAID Architecture Towards Fast Recovery and High Reliability."
  Proceedings of the 46th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2016) (Regular paper), Toulouse, France, June 28-July 1, 2016.
  (AR: 58/259 = 22.4%)


• Biaobiao Shen, Yongkun Li, Yinlong Xu, Yubiao Pan.
  "A Light-weight Hot Data Identification Scheme via Grouping-based LRU Lists."
  Proceedings of the 15th International Conference on Algorithms and Architectures for Parallel Processing (ICA3PP 2015), Zhangjiajie, China, November 18-20, 2015.


• Si Wu, Yinlong Xu, Yongkun Li, Yunfeng Zhu.
  "POS: A Popularity-based Online Scaling Scheme for RAID-Structured Storage Systems."
  Proceedings of the 33rd IEEE International Conference on Computer Design (ICCD 2015), New York City, USA, October 19-21, 2015.


• Yubiao Pan, Yongkun Li, Yinlong Xu, Zhipeng Li.
  "Grouping-based Elastic Striping with Hotness Awareness for Improving SSD RAID Performance."
  Proceedings of the 45th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN 2015) (Regular paper), Rio de Janeiro, Brazil, June 22-25, 2015.
  (AR: 50/229 = 21.8%)


• Yongkun Li, Patrick P. C. Lee, John C. S. Lui, Yinlong Xu.
  "Impact of Data Locality on Garbage Collection in SSDs: A General Analytical Study."
  Proceedings of the 6th ACM/SPEC International Conference on Performance Engineering (ICPE 2015), Austin, TX, USA, January 31-February 4, 2015.
  (AR: 15/56 = 26.8%)


• Si Wu, Yinlong Xu, Yongkun Li, Yunfeng Zhu.
  "Enhancing Scalability in Distributed Storage Systems with Cauchy Reed-Solomon Codes."
  The 20th IEEE International Conference on Parallel and Distributed Systems (ICPADS 2014), Taiwan, December 16-19, 2014.
  


• Yubiao Pan, Yongkun Li, Yinlong Xu, Weitao Zhang.
  "DCS5: Diagonal Coding Scheme for Enhancing the Endurance of SSD-based RAID-5 Systems."
  IEEE 9th International Conference on Networking, Architecture, and Storage (NAS 2014), Tianjin, August 6-8, 2014.
  (AR: 22/70 = 31.4%)


• Yongkun Li, Patrick P. C. Lee, John C. S. Lui.
  "Stochastic Analysis on RAID Reliability for Solid-State Drives."
  Proceedings of the 32nd IEEE International Symposium on Reliable Distributed Systems (SRDS 2013), Braga, Portugal, October 1-3, 2013.
  (AR: 22/67 = 32.8%)


• Yongkun Li, Patrick P. C. Lee, John C. S. Lui.
  "Stochastic Modeling of Large-Scale Solid-State Storage Systems: Analysis, Design Tradeoffs and Optimization."
  Proceedings of ACM SIGMETRICS (Full paper), Pittsburgh, PA, June 17-21, 2013.
  (AR: 27/196 = 13.8%)


• Yongkun Li, John C. S. Lui.
  "On Detecting Malicious Behaviors in Interactive Networks: Algorithms and Analysis."
  IEEE COMSNETS, invited paper, Bangalore, India, January 3-7, 2012.


• Yongkun Li, John C. S. Lui.
  "Friends or Foes: Detecting Dishonest Recommenders in Online Social Networks."
  IEEE 20th Int. Conference on Computer Communication Networks (ICCCN), Hawaii, USA, July 31-August 4, 2011.


• Yongkun Li, John C. S. Lui.
  "Identifying Pollution Attackers in Network-Coding Enabled Wireless Mesh Networks."
  IEEE 20th Int. Conference on Computer Communication Networks (ICCCN), Hawaii, USA, July 31-August 4, 2011.


• Yongkun Li, John C. S. Lui.
  "Stochastic Analysis of A Randomized Detection Algorithm for Pollution Attack in P2P Live Streaming Systems."
  IFIP Performance Conference, November 2010.


• Bridge Q. Zhao, Yongkun Li, John C. S. Lui, Dah-Ming Chiu.
  "Mathematical Modeling of Advertisement and Influence Spread in Social Networks."
  ACM NetEcon, Stanford, California, USA, July 7, 2009.


• Bridge Q. Zhao, Yongkun Li, John C. S. Lui, Dah-Ming Chiu.
  "On Modeling Product Advertisement in Social Networks."
  ACM SIGMETRICS/Performance, Poster, Seattle, WA, USA, June 15-19, 2009.

Journal Papers

• Lulu Yao, Yongkun Li*, Patrick P.C. Lee, Xiaoyang Wang, Yinlong Xu.
  "AdaptMD: Balancing Space and Performance in NUMA Architectures with Adaptive Memory Deduplication."
  Accepted for publication in IEEE Transactions on Computers (TC).


• Qiliang Li, Liangliang Xu, Yongkun Li, Min Lyu, Wei Wang, Pengfei Zuo, Yinlong Xu.
  "Enabling Efficient Erasure Coding in Disaggregated Memory Systems."
  IEEE Transactions on Parallel and Distributed Systems (TPDS), 35(1), PP 154-168, 2024.


• Qiang Zhang, Yongkun Li*, Patrick PC Lee, Yinlong Xu.
  "The Design and Implementation of UniKV for Mixed Key-Value Storage Workloads."
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 35(11), PP 11935 - 11949, Nov. 2023.


• Xiaoyang Wang, Yongkun Li*, Fan Guo, Yinlong Xu, John CS Lui.
  "Dynamic GPU Scheduling with Multi-resource Awareness and Live Migration Support."
  IEEE Transactions on Cloud Computing, 11(3), PP 3153-3167, Sep. 2023.


• Rui Wang, Yongkun Li*, Shuai Lin, Weijie Wu, Hong Xie, Yinlong Xu, John C.S. Lui.
  "Common Neighbors Matter: Fast Random Walk Sampling with Common Neighbor Awareness."
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 35(5), PP 4570-4584, May 2023.


• Lulu Yao, Yongkun Li*, Fan Guo, Si Wu, Yinlong Xu, John C.S. Lui.
  "Towards High Performance and Efficient Memory Deduplication via Mixed Pages."
  IEEE Transactions on Computers (TC), 72(4), PP 926-940, April 2023.


• Rui Wang, Yongkun Li*, Hong Xie, Yinlong Xu, John C.S. Lui, Shuibing He.
  "Towards Fast and Scalable Random Walks over Disk-Resident Graphs via Efficient I/O Management."
  ACM Transactions on Storage (TOS)，18(4), PP 1-33, November 2022.


• Rui Wang, Yongkun Li*, Shuai Lin, Hong Xie, Yinlong Xu, John C.S. Lui.
  "On Modeling Influence Maximization in Social Activity Networks under General Settings."
  ACM Transactions on Knowledge Discovery from Data (TKDD), 15(6), 1-28, Dec. 2021.


• Hong Xie, Mingze Zhong, Yongkun Li, John C.S. Lui.
  "Understanding Persuasion Cascades in Online Product Rating Systems: Modeling, Analysis and Inference."
  ACM Transactions on Knowledge Discovery from Data (TKDD), 15(3), 1-29, June 2021.


• Liangliang Xu, Min Lyu, Zhipeng Li, Yongkun Li, Yinlong Xu.
  "Deterministic Data Distribution for Efficient Recovery in Erasure-Coded Storage Systems."
  IEEE Transactions on Parallel and Distributed Systems (TPDS), 31(10), 2248-2262, Oct. 2020.


• Hong Xie, Yongkun Li, John C.S. Lui.
  "A Reinforcement Learning Approach to Optimize Discount & Reputation Trade-offs in E-commerce Systems."
  ACM Transactions on Internet Technology (TOIT), 20(4), 1-26, Oct. 2020.


• Chengjin Tian, Yongkun Li*, Si Wu, Jinzhong Chen, Liu Yuan, Yinlong Xu.
  "Popularity-based Online Scaling for RAID Systems under General Settings."
  IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD), 39(10), 2911-2924, Oct. 2020.


• Youxu Chen, Cheng Li, Min Lv, Xinyang Shao, Yongkun Li, Yinlong Xu.
  "Explicit Data Correlations-Directed Metadata Prefetching in Distributed File Systems."
  IEEE Transactions on Parallel and Distributed Systems (TPDS), 30(12), 2692 - 2705, Dec. 2019.


• Yongkun Li, Helen H. W. Chan, Patrick P. C. Lee, and Yinlong Xu.
  "Enabling Efficient Updates in KV Storage via Hashing: Design and Performance Evaluation."
  ACM Transactions on Storage (TOS), 15(3), Aug. 2019.
  


• Helen H. W. Chan,Yongkun Li, Patrick P. C. Lee, and Yinlong Xu.
  "Elastic Parity Logging for SSD RAID Arrays: Design, Analysis, and Implementation."
  IEEE Transactions on Parallel and Distributed Systems (TPDS), volume: 29 , issue: 10 , Oct. 2018.


• Yongkun Li, Neng Wang, Chengjin Tian, Si Wu, Yueming Zhang, Yinlong Xu.
  "A Hierarchical RAID Architecture Towards Fast Recovery and High Reliability."
  IEEE Transactions on Parallel and Distributed Systems (TPDS), volume: 29 , issue: 4 , pp. 734 - 747, April 2018.


• Yongkun Li, Biaobiao Shen, Yubiao Pan, Yinlong Xu, Zhipeng Li, and John C. S. Lui.
  "Workload-aware Elastic Striping with Hot Data Identification for SSD RAID Arrays."
  IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD), vol. 36, no. 5, pp. 815-828, May 2017.


• Xiaowei Chen, Yongkun Li, Pinghui Wang, John C.S. Lui.
  "A General Framework for Estimating Graphlet Statistics via Random Walk."
  VLDB 10(3): 253-264, 2016.


• Si Wu, Yinlong Xu, Yongkun Li, Zhijia Yang.
  "I/O-Efficient Scaling Schemes for Distributed Storage Systems with CRS Codes."
  IEEE Transactions on Parallel and Distributed Systems (TPDS), 27(9):2639 - 2652, Sep. 2016.


• Yubiao Pan, Yongkun Li*, Yinlong Xu, Biaobiao Shen.
  "DCS: Diagonal Coding Scheme for Enhancing the Endurance of SSD-based RAID Arrays."
  IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (TCAD), 35(8):1372 - 1385, Aug. 2016.


• Yongkun Li, Patrick P. C. Lee, John C. S. Lui.
  "Analysis of Reliability Dynamics of SSD RAID."
  IEEE Transactions on Computers (TC), 65(4):1131-1144, April 2016.


• Yongkun Li, John C. S. Lui.
  "Friends or Foes: Distributed and Randomized Algorithms to Determine Dishonest Recommenders in Online Social Networks."
  IEEE Transactions on Information Forensics and Security (TIFS), 9(10):1695-1707, Oct. 2014.


• Yongkun Li, Patrick P. C. Lee, John C. S. Lui.
  "Stochastic Modeling and Optimization of Garbage Collection Algorithms in Solid State Drive Systems."
  Queueing Systems: Theory and Applications (QUESTA), Springer, 77(2):115-148, June 2014.


• Yongkun Li, John C. S. Lui.
  "Epidemic Attacks in Network-Coding Enabled Wireless Mesh Networks: Detection, Identification and Evaluation."
  IEEE Transactions on Mobile Computing (TMC),12(11):2219-2232, Nov. 2013.


• Yongkun Li, Bridge Q. Zhao, John C. S. Lui.
  "On Modeling Product Advertisement in Large Scale Online Social Networks."
  IEEE/ACM Transactions on Networking (ToN), 20(5):1412-1425, Oct. 2012.


• Yongkun Li, John C. S. Lui.
  "Stochastic Analysis of A Randomized Detection Algorithm for Pollution Attack in P2P Live Streaming Systems."
  Performance Evaluation Journal, 67(11):1273-1288, Nov. 2010.

Professional Activities

• Reviewer for ACM Transactions on Storage, IEEE Transactions on Computers, IEEE Transactions on Parallel and Distributed Systems, ACM Transactions on Multimedia Computing, Communications, and Applications, Elsevier Performance Evaluation Journal, IEEE Computer Architecture Letters, Computer Networks, Frontier of Computer Science, etc.

• TPC member：ICDCS2024/2023, ICA3PP2023, ICCCN2022, ASPLOS2022(ERC), APSys2020, NAS2019, ICPADS 2019, ICPADS 2017, ACM TUR-C 2017, ICPADS 2016, etc.

Teaching

• 2017 Fall: Graph Theory, with Prof. Yinlong Xu and Prof. Min Lv
• 2018 Spring: Operating System
• 2019 Spring: Operating System
• 2019 Fall: 科学与社会研讨课
• 2020 Spring: Operating System
• 2020 Spring: 科学与社会研讨课
• 2021 Spring: Operating System
• 2022 Spring: Operating System
• 2023 Spring: Operating System
• 2024 Spring: Operating System

Links

• Wolframalpha
• Matrix reference
• Latex symbol detexify
• Htpasswd generator
• Linux C
• Linux tutorial center
• Matlab tutorial
• Tutorials in learning java, c, c++, objective c, android programming, etc.
• LaTeX add-in for powerpoint
• Mathematics genealogy project