PERSONAL INFORMATION

Currently, I am a Principal Researcher at Toyota InfoTech Labs (ITL). 

My advisors were   Prof. Toshio Hirotsu,  Associate Prof. Hirotake Abe, and   Prof. Kyoji Umemura.

My resume (2021.12)

• Senior researcher at Toyota Motor Corporation (2019.09-2023.03).   

• Researcher at Fujitsu Laboratories (2013.04 - 2019.08).

• Ph.D. Dept. of Electronic and Information Engineering at Toyohashi University of Technology (2010.04 - 2013.03).

• M.Eng. Dept. of Information and Computer Science Information at Toyohashi University of Technology (2008.04 - 2010.03).

• B.Eng. School of Information Technology Engineering at Korea University of Technology and Education (2000.03 - 2007.08).

Ph.D. Thesis: Measurements, Analysis, and Modeling for Network Throughput Prediction on the Internet

                         Summary of my thesis in Japanese from Information Processing Society of Japan (IPSJ).

                         Download my thesis from here if you wish.  

RESEARCH INTERESTS

  V2x communication and infrastructure for connected vehicles
  Cloud/Edge Computing, System Monitoring and Analysis
  NFV/SDN, Network Measurement and Datacenter Networks  

R&D COLLABORATION

• Vehicular micro clouds for connected vehicles (Academic)  

  • Prof. Dr.-Ing. habil. Falko Dressler, Department of Telecommunication Systems, Technische Universität Berlin

  • Prof. Danijela Cabric, Department of Electrical and Computer Engineering, University of California, Los Angeles (UCLA)

  • Assistant Prof. Haonan Lu, Department of Computer Science and Engineering, University at Buffalo

  • Assistant Prof. Zhuoyue Zhao, Department of Computer Science and Engineering, University at Buffalo
    
    

• Cloud infrastructure and networking (Academic) 

  • Prof. Dongsu Han, School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST)

  • Prof. Susumu Date, Cybermedia Center, Osaka University

  • Associate Prof. Hirotake Abe, Faculty of Engineering, Information and Systems, University of Tsukuba

  • Prof. Toshio Hirotsu, Faculty of Computer and Information Sciences, Hosei University

  • Associate Prof. Ryo Nakamura, Information Technology Center, The University of Tokyo
    
    

• Segment Routing over IPv6 (SRV6) Consortium (Industry)

  • Satoru Matsushima, Softbank Corp.

  • Miya Kohno, Cisco Systems G.K

  • Ryuichi Takashima,  Huawei Technologies Japan K.K.

  • Masakazu Asama, Ginzado Co.

  • Kentaro Ebisawa, Toyota Motor Corporation

  • Hitoshi Kuwata, APRESIA Systems,Ltd.

  • Naoyuki Mori, Intel K.K.

  • Yasuhiro Ohara, NTT Communications Corporation

  • Tetsuya Murakami, Arrcus, Inc.

  • Shogo Asaba, Cisco Systems G.K

PRESS RELEASE

• Fujitsu Develops Automated Analysis Technology to Identify Causes of Performance Degradation in Virtual Desktops (EN)(JP)

  • 仮想デスクトップの性能劣化要因を自動で特定する新技術、富士通研究所が開発, 24.05. 2017, IT media

  • 富士通研、仮想デスクトップシステムの性能劣化要因を自動分析する新技術, 24.05. 2017, マイナビニュース

  • 仮想デスクトップの性能劣化、自動分析で特定−富士通研, 24.05. 2017, 日刊工業新聞

  • 富士通研究所、仮想デスクトップ環境の性能劣化要因特定を支援する技術を開発, 24.05. 2017, クラウド Watch
    
    

PUBLICATIONS

• Journal papers/Book chapter

  • J. Park, B. Choi, C. Lee, and D.Han, "Graph Neural Network-based SLO-aware Proactive Resource Autoscaling Framework for Microservices",  IEEE/ACM Transactions on Networking (ToN), - In press -

  • 風間 龍, 児嶋 陽平, 阿部 洋丈, 李 忠翰, "RNNを用いたTCP輻輳ウィンドウ減少量調整手法の実現可能性評価", 情報処理学会論文誌, Volume:17, No.1, pp. 1-12, Mar. 2024 

  • 中村 遼, 海老澤 健太郎, 奥澤 智子, 李 忠翰, 関谷勇司, "ECMPの拡張によるハードウェアロードバランサの提案", 情報処理学会論文誌, Volume:65, No.3, pp. 635-645, Mar. 2024 

  • K. Kobori, C. Lee, and T. Hirotsu, "Performance evaluation of portable time synchronization method using eBPF", Wiley Concurrency and Computation: Practice and Experience (CCPE), Volume: e7957, pp. 1-14, Nov. 2023 

  • S. Kamata, C. Lee and S. Date, "Per-user Access Control Framework for Link Connectivity and Network Bandwidth", Springer Transactions on Computational Science and Computational Intelligence (Advances in Security, Networks, and Internet of Things) , pp. 587-606,  Mar. 2021

  • A. Endo, H. Ohtsuji, E. Hayashi, E. Yoshida, C. Lee, S. Date and S. Shimojo, "Dynamic Traffic Control of Staging Traffic on the Interconnect of the HPC Cluster System", IEEE Access, Volume: 8,  pp. 198518--198531, Nov.2020

  • C. Lee, H. Abe, T. Hirotsu and K. Umemura, "Analytical Modeling of Network Throughput Prediction on the Internet", IEICE Trans. Information and Systems, Vol.E95-D, No.12, pp. 2870-2878, Dec. 2012

  • C. Lee, H. Abe, T. Hirotsu and K. Umemura, "Traffic Anomaly Analysis and Characteristics on a Virtualized Network Testbed", IEICE Trans. Information and Systems, Vol.E94-D, No.12, pp. 2353-2361, Dec. 2011
    
    

• International conference/workshop (Refereed)

  • T. Higuchi, S. Ucar, C. Lee and O. Altintas, "Link Setup Latency in Vehicle-to-Vehicle WLANs: A Comparative Study", 2024 IEEE 21st Consumer Communications & Networking Conference (CCNC), pp.45-50, Jan.2024. 

  • N.Kaneko, C. Lee, K. Okada and H. Abe, "Investigating the Impact of Network Metrics on Multi-path Transport", Proc. the 18th Asian Internet Engineering Conference (AINTEC), Hanoi, Vietnam, pp.46-53, Dec.2023. 

  • C. Lee, R. Yoshitani, and T. Hirotsu, "Enhancing Packet Tracing of Microservices in Container Overlay Networks using eBPF", Proc. the 17th Asian Internet Engineering Conference (AINTEC), Hiroshima, Japan, pp. 53-61, Dec.2022. 

  • K. Kobori, C. Lee, and T. Hirotsu, "A Portable Time Synchronization Method using eBPF", Proc. 2022 10th CANDAR International Workshop on Autonomous Self-Organizing Networks (ASON), Himeji, Japan, pp. 20-25, Nov.2022. 

  • R. Kazama, H. Abe, and C. Lee, "Evaluating TCP Throughput Predictability from Packet Traces Using Recurrent Neural Network", Proc. IEEE ISCC 27th 2nd Workshop on Distributed Intelligent Systems (DistInSys 2022), Rhodes Island, Greece, pp. 1-6, Jun.2022.

  • A. Endo, C. Lee, and S. Date, "Scalability Evaluation of a Per-User Access Control Framework", Proc. the 8th Annual Conf. on Computational Science & Computational Intelligence (CSCI'21), pp. 1493-1499, Las Vegas, USA, Dec.2021.

  • J. Park, B. Choi, C. Lee, and D.Han, "GRAF: A Graph Neural Network based Proactive Resource Allocation Framework for SLO-Oriented Microservices",  Proc. the 17th International Conference on emerging Networking EXperiments and Technologies (CoNext’21), pp. 154-167, All-Virtual, Dec.2021.

  • C. Lee, N. Mori, Y. Ohara, T. Murakami, S. Asaba, and S. Matsushima, "The Latency Characteristics of GTP-U and SRv6 Stateless Translation on VPP Software Router", Proc. IEEE Compsac 9th International Workshop on Architecture, Design, Deployment and Management of Networks and Applications (ADMNET 2021), pp. 1430-1437, All-Virtual, Jul.2021.

  • B. Choi, J. Park, C. Lee, and D.Han, "pHPA: A Proactive Autoscaling Framework for Microservice Chain", The 5th Asia-Pacific Workshop on Networking (APNet 2021), pp. 65-71, Shenzhen, China, Jun.2021.

  • L. Bai, H. Abe, and C. Lee, "RNN-based Approach to TCP Throughput Prediction", Proc. 2020 8th CANDAR International Workshop on Advances in Networking and Computing (WANC), pp. 391-395, Naha, Japan, Nov.2020.  - Best Paper Award -

  • C. Lee, K. Ebisawa, H. Kuwata, M. Kohno, and S. Matsushima, "Performance Evaluation of GTP-U and SRv6 Stateless Translation", Proc. IEEE CNSM'19 2nd Workshop on Segment Routing and Service Function Chaining (SR+SFC 2019), pp.1-6, Halifax, Canada, Oct.2019.

  • S. Okada, C. Lee, H.Ueno, and T. Ishihara, "Detecting Wireless LAN Bottlenecks Using TCP Connection Measurement at Traffic Aggregation Point", Proc. The 20th Asia-Pacific Network Operations and Management Symposium (APNOMS), pp.1-6, Matsue, Japan, Sep.2019. - Best Paper Award -

  • C. Lee,  K. Asano, and T. Ishihara, "The Impact of Software-based Virtual Network in the Public Cloud", Proc. IEEE NetSoft'18 Software Defined Networking and Network Function Virtualization Performance (PVE-SDN 2018), pp.494-499, Montreal, Canada, Jun.2018.  

  • C. Lee,  T. Kumano, T. Matsuki, H. Endo, N. Fukumoto, and M. Sugawara, "Understanding Storage Traffic Characteristics on Enterprise Virtual Desktop Infrastructure", Proc. the 10th ACM International Systems and Storage Conference (SYSTOR 2017), pp.13:1-13:11, Haifa, Israel, May.2017.

  • Y. Nakagawa, C. Lee, K. Hyoudou, S. Kobayashi, O. Shiraki, J. Tanaka, and T. Ishihara, "Dynamic Virtual Network Configuration between Containers using Physical Switch Functions for NFV Infrastructure", Proc. IEEE conference on Network Functions Virtualization (NFV) and Software Defined Networks (SDN), pp. 158 - 164,  San Francisco, USA, Nov.2015.  

  • C. Lee, Y. Nakagawa, K. Hyoudou, S. Kobayashi, O. Shiraki, and T. Shimizu, "Flow-Aware Congestion Control to Improve Throughput under TCP Incast in Datacenter Networks", Proc. IEEE Compsac 3rd International Workshop on Architecture, Design, Deployment and Management of Networks and Applications (ADMNET 2015), pp. 155 - 162,  Taichung, Taiwan, Jul. 2015.  

  • Y. Nakagawa, K. Hyoudou, C. Lee, S. Kobayashi, O. Shiraki ,and T. Shimizu, "DomainFlow: Practical Flow Management Method using Multiple Flow Tables in Commodity Switches", Proc. the 9th international conference on Emerging networking experiments and technologies (CoNEXT '13), pp. 399 - 404,  Santa Barbara, USA, Dec. 2013.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Performance Implications of Task Scheduling by Predicting Network Throughput on the Internet", Proc. the 11th IEEE International Symposium on Parallel and Distributed Processing with Applications (ISPA 2013), pp. 1089 - 1098, Melbourne, Australia, Jul. 2013.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "A Statistical Approach for Selecting Throughput Prediction Parameters on the Internet", Proc. the 6th Edition of the International Conference on Ubiquitous Information Technologies & Applications (CUTE 2011), pp. 37 - 40, Seoul, Korea, Dec. 2011.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Predicting Network Throughput for Grid Applications on Network Virtualization Areas", Proc. IEEE/ACM SC'11 The first International Workshop on Network-Aware Data Management (NDM 2011), pp. 11 - 20, Seattle, USA, Nov. 2011.   - Best Paper Honorable Mention -

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Estimating Traffic Anomalies for Throughput Prediction on Network Virtualization", Proc. IEEE/IPSJ SAINT'11 The Second Workshop on High Speed Network and Computing Environments (HSNCE 2011), pp. 267 - 273, Munich, Germany, Jul. 2011.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Analysis of Anomalies on a Virtualized Network Testbed", Proc. the 10th IEEE International Conference on Computer and Information Technology (CIT'10), pp. 297 - 304, Bradford, UK, Jun. 2010.
    
    

• International demo/poster (Refereed)

  • S. Ucar, O. Mba, C. Lee, A. Sisbot, and  K. Oguchi, "Demo: Responding to an Unsafe Maneuver of Approaching Vehicles", 2024 IEEE Vehicular Networking Conference (VNC), - Accepted -

  • C. Lee, T. Higuchi, S. Ucar, N. Kaneko, O. Altintas, and  K. Oguchi, "Poster: Performance Analysis of TCP CUBIC and BBR over V2V  Wi-Fi", The 22nd ACM International Conference on Mobile Systems, Applications, and Services (MobiSys'24), - Accepted -

  • Y. Tanicuchi, A. Endo, C. Lee, M. Saitoh, and S. Date, "Towards Practical Interconnect Design: Integrating Job Scheduling and Network Simulation", The 23rd International Conference on Parallel and Distributed Computing, Applications and Technologies (PDCAT’22), Tohoku, Japan, Dec.2022.
    
    

• Domestic conference/workshop (Refereed)

  • 中村 遼, 海老澤 健太郎, 奥澤 智子, 李 忠翰, 関谷勇司, "ECMPの拡張によるハードウェアロードバランサの提案", 第15回 インターネットと運用技術シンポジウム（IOTS 2022）,pp.40-47, 北九州,  2022年12月. - 優秀論文賞 -

  • C. Lee, N. Fukumoto, H. Endo, M. Sugawara, T. Matsuki, and T. Kumano, "Characterizing Storage Traffic of Virtual Desktop Infrastructure on Enterprise Network", 2nd Annual Meeting on Advanced Computing System and Infrastructure (ACSI), Fukuoka, Japan, Jan.2016.

  • C. Lee, Y. Nakagawa, K. Hyoudou, S. Kobayashi, O. Shiraki, and T. Shimizu, "A Switch-based Approach for TCP Incast on Datacenter Networks", 1st Annual Meeting on Advanced Computing System and Infrastructure (ACSI) 2015, Tsukuba, Japan, Jan. 2015.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Recent Empirical Evaluation of Aggregate Throughput using Parallel Transfers on the Internet", IPSJ Computer System Symposium (ComSys2012), pp. 53 - 58, Tokyo, Japan, Dec. 2012.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "A PCA Analysis for Traffic Anomaly Estimation", Internet Conference 2010 (IC2010), pp. 93 - 98, Tokyo, Japan, Oct. 2010.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Evaluation of the Throughput Measurement Method using Connection Pairs", The 10th Workshop on Internet Technology (WIT2009), Furano, Japan, Jun. 2009.
    
    

• Domestic conference/workshop

  • 小堀 和人, 李 忠翰,  廣津 登志夫, "Precision Time Protocolにおける通信遅延補正処理のモジュール化", IPSJ Technical Report (SIGOS 162), 石川, Feb.2024 

  • 谷口 昂平, 遠藤新, 李 忠翰, 齋藤 公利, 伊達 進, "パケットリプレイベースの高性能計算機システム用ネットワークシミュレータの試作", IPSJ Technical Report (SIGOS 159), 沖縄, May.2023.

  • 金子 直矢, 李 忠翰, 阿部 博, 岡田和也, "自動車走行環境において移動体通信回線情報を用いた WebRTC 映像伝送の品質劣化推測手法の検討",IPSJ Technical Report (SIGIOT 60), 群馬, Mar.2023.

  • 児嶋 陽平, 風間 龍, 阿部 洋丈, 李 忠翰, "回帰型ニューラルネットワーク（RNN）を用いた輻輳制御アルゴリズムのLinuxカーネルへの実装と評価", 千葉, 第34回コンピュータシステム・シンポジウム(ComSys2022), pp. 76 - 81, Chiba, Dec.2022.

  • C. Lee, R. Yoshitani, and T. Hirotsu, "eBPF-based Packet Tracing for Service Mesh", IPSJ Technical Report (SIGOS 157), 2022-OS-157, Yokohama, Japan, Sep. 2022.

  • 小堀 和人, 李 忠翰,  廣津 登志夫, "高精度時刻同期機構のカーネル内汎用実装", IPSJ Technical Report (SIGOS 155), 2022-OS-155, Okinawa, Japan, May. 2022.- 優秀若手発表賞 -

  • 吉谷 玲奈, 李 忠翰,  廣津 登志夫, "マイクロサービス環境のためのマルチレイヤトレーシングの設計と実装", 情報処理学会 第84回全国大会, 愛媛, 2022年3月, - 学生奨励賞  大会奨励賞 -

  • 遠藤 新, Chunghan Lee, 伊達 進, 木戸 善之, 渡場 康弘, 下條 真司, "ステージングによるトラヒック競合を自動抽出可能なパケットフロー分析ツール",日本ソフトウェア科学会 第16回ディペンダブルシステムワークショップ, 東京, 2019年12月. - 優秀論文発表賞 -

  • 藤田 祐也, 阿部 洋丈, 李 忠翰, "プロファイリングを用いてソフトウェア仮想ネットワークの性能劣化を診断する手法の検討", IPSJ Technical Report (SIGOS 146), 2019-OS-146, Okinawa, Japan, May. 2019.

  • 上野 仁, 李 忠翰, 飯塚 史之, 荻原 一隆, 奥田 將人, "大規模マイクロサービス環境における性能分析手法について", 電子情報通信学会 2019年総合大会, BT-1-2, Tokyo, Mar.2019.

  • 岡田 純代, 李 忠翰, 石原 智宏, "トラフィック集約点でのTCP解析による無線LANボトルネックの特定", IEICE-IA Technical Report, pp. 279 - 285, Tokushima, Mar.2019 .

  • C. Lee, R. Mutoh and N.Oguchi, "The Impact of Microbursts on Throughput of Virtual Switch", IEICE-IN Technical Report, pp. 13 - 18, Hokkaido, Jul.2016 .

  • 奥田 周平, 松嶋 健太, 平田 孝志, 山本 幹, 李 忠翰 , 小口 直樹, 田中 淳, "データセンタ環境下におけるTCP間の公平性改善に関する一検討", 電子情報通信学会 2016年総合大会, B-6-77, Fukuoka, Mar. 2016.

  • C. Lee, H. Abe, T. Hirotsu, and K. Umemura, "Internet Traffic Characteristics of Virtual Machine on Amazon EC2", IPSJ Technical Report (SIGOS 117), 2011-OS-117, Okinawa, Japan, Apr. 2011.
    
    

• Patents (America) 

  • C. Lee, S. Ucar, O. Altintas and K. Oguchi, "EARLY DETECTION OF AVAILABLE STORAGE CAPACITY FOR COLLABORATIVE UPLOAD", U.S. Application No. 18/643,952, Apr. 2024.

  • C. Lee, S. Ucar, O. Altintas and K. Oguchi, "SYSTEMS AND METHODS FOR COOPERATIVE DATA COMMUNICATIONS BY VEHICLES USING CHARGING STATIONS", U.S. Application No. 18/640,101, Apr. 2024.

  • S. Ucar, C. Lee, O. Altintas and K. Oguchi, "APPROACHING VEHICLE SUPPORT AND COLLABORATIVE UPLOAD BY VEHICULAR MICRO CLOUDS", U.S. Application No. 18/610,969, Mar. 2024.

  • S. Ucar, C. Lee, O. Altintas and K. Oguchi, "APPROACHING VEHICLE SUPPORT AND COLLABORATIVE UPLOAD BY VEHICULAR MICRO CLOUDS", U.S. Application No. 18/610,866, Mar. 2024.

  • C. Lee, S. Ucar, O. Altintas and K. Oguchi, "TRANSFERRING BULK DATA BETWEEN VEHICLES OF A MICRO CLOUD", U.S. Application No. 18/432,168, Feb. 2024.

  • C. Lee, "Communication method", U.S. Application No. 18/229,475, Feb. 2024.

  • C. Lee, S. Ucar, O. Altintas and K. Oguchi, "VEHICULAR ACCESS POINT FOR AUTHENTICATING MEMBERS OF A VEHICULAR MICRO CLOUD", U.S. Application No. 18/387,778, Nov. 2023.

  • C. Lee, J. Park, B. Choi, and D.Han, "Information Processing Apparatus and Information Processing Method", U.S. Application No. 18/056,785, Nov. 2022

  • C. Lee, B. Choi, J. Park, and D.Han, "CONTAINER MANAGEMENT DEVICE AND STORAGE MEDIUM STORING CONTAINER MANAGEMENT PROGRAM", U.S. Application No. 17/745,069, May. 2022.

  • S. Okada, H. Ueno, F. Iizuka, K. Ogihara, and C. Lee, "Packet analysis device and packet analysis method", U.S. Application  No.16/909,326, Jan.2021.

  • C. Lee, "Packet analysis apparatus, packet analysis method, and storage medium", U.S. Application No.16/801,216, Nov. 2020.

  • C. Lee, "Computer-readable recording medium including monitoring program, programmable device, and monitoring method", U.S. Application No. 16/733,839, Sep. 2020.

  • C. Lee, "INFORMATION PROCESSING APPARATUS AND METHOD THEREOF CROSS-REFERENCE TO RELATED APPLICATION", U.S. Application No. 16/183,777, Nov. 2018.

  • C. Lee, "NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM RECORDING BURST DETECTION PROGRAM, BURST DETECTION METHOD AND INFORMATION PROCESSING APPARATUS", U.S. Application No. 15/967,637, May. 2018.

  • C. Lee and N.Oguchi, "METHOD AND APPARATUS FOR AVAILABLE BANDWIDTH MEASUREMENT", U.S. Application No. 15/654,761, Jul. 2017.

  • C. Lee, "SYSTEM, METHOD, AND RECEIVING DEVICE CROSS-REFERENCE TO RELATED APPLICATION", U.S. Application No. 15/069,060, Mar. 2016.

  • C. Lee and T. Shimizu, "INFORMATION PROCESSING SYSTEM, METHOD, AND APPARATUS", U.S. Application No. 14/887,799, Oct. 2015.

  • C. Lee, Y. Nakagawa and T. Shimizu, "SWITCH DEVICE, INFORMATION PROCESSING SYSTEM, AND METHOD FOR CONTROLLING SWITCH DEVICE", U.S. Application No. 14/631,411, Feb. 2015.

  • C. Lee, Y. Nakagawa and T. Shimizu, "SWITCH DEVICE, INFORMATION PROCESSING SYSTEM, AND METHOD FOR CONTROLLING SWITCH DEVICE", U.S. Application No. 14/629,890, Feb. 2015.
    
    

• Patents (Japan)

  • 李忠翰, "情報処理方法", 特願2023-021723, 2023年2月

  • 李忠翰, "情報処理システム、情報処理方法、および情報処理装置", 特願2022-169066, 2022年10月

  • 李忠翰, "通信方法", 特願2022-127317, 2022年8月

  • 李忠翰,パク ジンウ,チェ ビョングォン, ハン ドンス, "情報処理装置及び情報処理方法", 特願2021-191864 , 2021年11月

  • 李忠翰,チェ ビョングォン, パク ジンウ, ハン ドンス, "コンテナ管理装置、及びコンテナ管理プログラム", 特願 2021-084145 , 2021年5月

  • 岡田純代,上野仁 ,飯塚史之,荻原一隆, 李忠翰, "パケット解析プログラム、パケット解析方法およびパケット解析装置", 特願 2019-131130, 2019年7月

  • 李忠翰,  "パケット解析プログラム、パケット解析装置およびパケット解析方法", 特願 2019-044219, 2019年3月

  • 李忠翰,  "モニタリングプログラム，プログラマブルデバイス及びモニタリング方法", 特願 2019-004501, 2019年1月

  • 李忠翰,  "情報処理装置、情報処理方法及びプログラム", 特願 2017-226041, 2017年11月

  • 李忠翰,  "バースト検出プログラム、バースト検出方法、および情報処理装置", 特願 2017-093931, 2017年05月

  • 李忠翰,  小口 直樹, "空き帯域測定プログラム、空き帯域測定方法、および空き帯域測定装置", 特願 2016-159276, 2016年08月 

  • 李忠翰,  "情報処理システム、情報処理システムの制御方法及び受信装置", 特願 2015-093799, 特開2016-213581, 2015年05月 

  • 李忠翰, 清水剛,  "情報処理システム、情報処理システムの制御方法およびスイッチ装置", 特願 2014-225635, 特開2016-092622, 2014年11月

  • 李忠翰, 中川幸洋, 清水剛, "スイッチ装置、情報処理システムおよびスイッチ装置の制御方法", 特願 2014-062566, 特開2015-186142, 2014年03月

  • 李忠翰, 中川幸洋, 清水剛, "スイッチ装置、情報処理システムおよびスイッチ装置の制御方法", 特願 2014-062657, 特開2015-186149, 2014年03月
    
    

ACTIVITIES

• • Invited talks

    • C. Lee, "Understanding Cloud Traffic Characteristics in the Wild",   KAIST EE Computing Lunch Seminar, Daejeon, Korea, Nov.2018.

    • C. Lee, "Measurement and Analysis of VDI System in the Wild",   Future Internet Summit 2018, Seoul, Korea, Nov.2018.

    • C. Lee, "Effects of Microbursts on Virtualized Networks",   Technische Universität München (TUM) Informatik-Kolloquium, Munich, Germany, Jun.2016.

    • C. Lee, H. Abe, T. Hirotsu and K. Umemura, "Characteristics of Internet Traffic Anomalies over a Virtualized Network Testbed", The 7th Korea-Japan e-Science Symposium, Hongcheon, Korea, Jul. 2010.
      
      

  • Referee

    • IEEE/ACM Transactions on Networking (ToN)

    • IEEE Access

    • IEEE Communications Letters

    • IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences

    • IEICE TRANSACTIONS on Communications

    • IEICE TRANSACTIONS on Information and Systems

    • 20th IEEE International Conference on e-Science (eScience 2024)

    • IEEE Compsac International Workshop on Architecture, Design, Deployment and Management of Networks and Applications (ADMNET 2022, 2023, 2024)

    • The 21th IEEE/ACM International Symposium on Cluster, Cloud and Internet Computing (CCGrid 2021)

    • The 6th IEEE International Conference on Network Softwarization (NetSoft 2020)

    • The 13th International Conference on Network and Service Management (CNSM 2017)
      
      

  • Open dataset contributions

    • SNIA, VDI Storage Block I/O Traces (SNIA IOTTA Repository)
      
      

  • Open Source Community and Automotive Consortium

    • Chair on working group 1 (WG1) , Automotive Edge Computing Consortium (AECC) 

    • Vice chair on working group 1 (WG1) , Automotive Edge Computing Consortium (AECC) 

    • Detecting Network-based Attacks (inbound/outbound) in the Cloud (Project), Open NFP

    • Open vSwitch For NFV (OVSNFV), OPNFV

• • Presentations (Academy)

    • C. Lee, N. Mori, Y. Ohara, T. Murakami, S. Asaba and S. Matsushima, "Latency Performance of GTP-U and SRv6 Stateless Translation Functions on Software Router (VPP)",  ITRC meet 50, Online, Nov.2021.

    • C. Lee, N. Mori, Y. Ohara, T. Murakami, S. Asaba and S. Matsushima, "Latency Performance of GTP-U and SRv6 Stateless Translation Functions on Software Router (Kamuee)",  ITRC meet 48, Online, Nov.2020.

    • S. Date, S. Kamata and C. Lee "Status Report of Per-user Access Control Framework of Network Resources towards Secure Interaction between IoT Devices and Data Center",  US-Japan Workshop on Programmable Networking, Online, Nov. 2020.

    • C. Lee, K. Ebisawa, H.Kuwata, M. Kohon  and S. Matsushima, "Evaluating SRv6 and GTP-U Stateless Translation Functions on P4 Programmable Switch",  KRnet 2020, Seoul, Korea, Jun.2020.

    • C. Lee, K. Ebisawa, H.Kuwata, M. Kohon  and S. Matsushima, "Evaluating GTP-U and SRv6 Stateless Translation Functions using Programmable Switch",  KSC 2019, Seoul, Korea, Sep.2019.

    • A. Endo, C. Lee, S. Date, Y. Kido and S. Shimojo, "Evaluation of SDN-based Conflict Avoidance between Inter-Node Communication and Staging Communication based on Packet Monitoring", The Pacific Rim Application and Grid Middleware Assembly (PRAGMA) 36 workshop, Jeju, Korea, Apr. 2019.

    • C. Lee,  T. Kumano, T. Matsuki, H. Endo, N. Fukumoto and M. Sugawara, "Storage Traffic Characteristics of Enterprise Virtual Desktop Infrastructure (VDI)",  ITRC meet 42, Kumamoto, Japan, Nov.2017.

    • C. Lee, "Performance Analysis of Virtual Networks on Server",  ITRC meet 40, Hokkaido, Japan, Nov.2016.

    • C. Lee and Y. Nakagawa, "Virtual Network Configuration with Group-based Policy using OpenDaylight", ITRC meet 38, Chiba, Japan, Nov.2015.

    • C. Lee, H. Abe, T. Hirotsu and K. Umemura, "A Proposal for Improving Network Throughput Predictability over the Internet", The Pacific Rim Application and Grid Middleware Assembly (PRAGMA) 21 workshop, Sapporo, Japan, Oct. 2011.

    • C. Lee, H. Abe, T. Hirotsu and K. Umemura, "Throughput Evaluation for Improving Predictability over the Internet", Proc. IEEE/ACM SC'10 Research Booth Poster, New orleans, USA, Nov. 2010. PDF
      
      

• Presentations (Industry)

  • C. Lee and T. Hirotsu, "P4-based Packet Tracing of Microservices for Service Mesh",  P4 workshop 2023, Santa Clara, April.2023.

  • C. Lee, N. Mori, Y. Ohara, T. Murakami, S. Asaba and S. Matsushima, "Latency Evaluation of GTP-U and SRv6 Stateless Translation Functions on Software Router (VPP)",  SDN/NFV forum (ONOS/CORD seminar), Online, May.2022.

  • C. Lee, "Segment Routing over IPv6 (SRv6) with OSS",  HSN 2022, Hybrid (Online/Jeju, Korea), Jan.2022.

  • C. Lee, N. Mori, Y. Ohara, T. Murakami, S. Asaba and S. Matsushima, "Latency Evaluation of GTP-U and SRv6 Stateless Translation Functions on Software Router (Kamuee)",  SDN/NFV forum (ONOS/CORD seminar), Online, May.2021.

  • C. Lee, N. Mori, Y. Ohara, T. Murakami, S. Asaba and S. Matsushima, "高速ソフトウェアルータ(Kamuee)によるGTP-U/SRv6のStateless変換の遅延評価", MPLS JAPAN 2020, Online, Nov.2020.

  • C. Lee, K. Ebisawa, H.Kuwata, M. Kohon, S. Matsushima, "Programmable スイッチによる GTP/SRv6 の Stateless 変換の性能評価",  日本 P4 ユーザ会 2019, Tokyo, Oct.2019. 

  • M. Kohon, C. Filsfils, S. Matsushima, K. Ebisawa, C. Lee, R. Takashima and T. Kamata, "Forefront of SRv6",  JANOG 43 meeting, Yamanashi, Jan.2019. PDF from JANOG43 Meeting

  • C. Lee, "The Analysis of Microburst on Virtual Switch",  OPNFV (Open vSwitch for NFV), online meeting, Sep.2016. PDF from OPNFV

  • C. Lee, "How to implement OpenDaylight application ?",  Trema Day #8, Tokyo, Japan, Dec.2015. PDF from SlideShare

  • C. Lee and Y. Nakagawa, "Virtual Network Configuration with Group-based Policy using OpenDaylight", MPLS JAPAN 2015, Tokyo, Japan, Nov.2015. PDF from MPLS 2015

  • Y. Nakagawa, Y. Takano, C. Lee, R. Mutoh and N. Oguchi, Using Open vSwitch for service function chain (SFC) and SFC proxy to realize NFV, Open vSwitch 2015 Fall Conference, Nov.2015, PDF from OVSCON 2015

  • C. Lee and Y. Nakagawa, "Network Configuration with Group-based Policy using OpFlex", 2nd OpenDaylight User Group Tokyo, Tokyo, Japan, Jun. 2015. PDF from ODLUG Meetup

  • Y. Nakagawa and C. Lee, "Network Configuration with Group Policy", OpenDaylight Tokyo Hackfest 2014, Tokyo, Japan, Oct. 2014. PDF from OpenDaylight wiki