计算机科学与技术学院
 
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副教授

李永坤


讲师


博士后

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  • 美国克拉克森大学Chen Liu副教授学术报告会

    题目:An Integrated Hardware/Software Framework for Adaptive Thread Management in Modern Microprocessors

    时间:2018年6月19日16:00

    地点: 西区电三楼632学术报告厅

  • 中国科大智能与大数据峰会

    时间:2018年6月16日-17日

    1.开幕式(6月16日上午9:00-9:30)

      地点:西区科技实验楼218会议室

    2.峰会主题演讲(6月16日上午9:30-12:00)

      地点:西区科技实验楼218会议室

      演讲嘉宾:陈国良、刘云浩

    3.分论坛(6月16日下午14:30-17:30)

      智能领域:

      地点:西区科技实验楼218会议室

      演讲嘉宾:田第鸿、方明、庞建新、户磊

      大数据领域:

      地点:西区科技实验楼118会议室

      演讲嘉宾:熊辉、谭营、徐泽水、张师超

      物联网领域:

      地点:西区电三楼632会议室

      演讲嘉宾:张燕咏、梁家恩、陈云霁

  • 南瑞集团研究院杨志宏副院长报告会

    题目:能源互联网前沿技术应用

    时间:2018年6月13日10:00

    地点:西区电三楼632学术报告厅

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李永坤

  

  

电  话:+86-0551-63603412

E-mail:ykli@ustc.edu.cn

个人主页:http://staff.ustc.edu.cn/~ykli

 

主要研究方向:文件系统,内存系统,云计算与大数据系统,并行/分布式机器学习系统优化

 

李永坤,男,博士,副教授。 2008年毕业于中国科学技术大学计算机科学与技术系,获学士学位; 2012年毕业于香港中文大学计算机科学与工程系,获博士学位,师从John C. S. Lui 教授。2012年8月至2013年12月在香港中文大学网络编码研究所从事博士后研究。2013年12月起就职于中国科学技术大学计算机科学与技术学院。李永坤副教授主要致力于数据存储与文件系统等方面的研究,尤其是云计算与大数据等应用场景下的存储与系统问题,虚拟化内存管理,key-value系统,并行/分布式机器学习的系统支持与优化,以及Flash,NVRAM等。目前已发表论文40余篇,包括ATC,SIGMETRICS,VLDB,INFOCOM,DSN等。主持国家自然科学基金青年和面上项目各一项,安徽省自然科学基金项目一项,CCF-腾讯犀牛鸟基金等项目,获CCF-腾讯犀牛鸟基金优秀奖与王宽诚育才奖。现为CCF会员,ACM会员,IEEE会员,以及CCF信息存储专委委员。

 

 获 奖 情 况

   

中国计算机学会-腾讯犀牛鸟基金优秀奖

王宽诚育才奖

 

主 要 论 著

   

[01]  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), Bristol, UK, August 2017.
[02] 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), Santa Clara, CA, USA, July 2017. 
[03] 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), Atlanta, USA, May 2017.
[04] 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), Suzhou, China, March 2017.
[05] Xiaowei Chen, Yongkun Li, Pinghui Wang, and John C.S. Lui. "A General Framework for Estimating Graphlet Statistics via Random Walk." The VLDB Conference, 2017.
[06] 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).
[07] 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.
[08] 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), London, UK, September 2016.
[09] 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) (Regular paper), Toulouse, France, June 2016.
[10] 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) (Regular paper), Toulouse, France, June 2016.
[11] 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.
[12] 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.
[13] 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.
[14] 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) (Regular paper), Rio de Janeiro, Brazil, June 2015.
[15] 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.
[16] 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), Braga, Portugal, October 2013.
[17] 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 2013. 
[18] 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.
[19] 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.

 

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