Organization
Faculty of Environmental, Life, Natural Science and Technology Assistant Professor
Position
Assistant Professor
Homepage
External link
Kobayashi Satoru
Degree
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Ph.D. in Information Science and Technology ( 2018.3 The University of Tokyo )
Research Areas
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Informatics / Information network
Research History
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Okayama University Fuculty of Environmental, Life, Natural Science and Technology Assistant Professor
2023.4
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Okayama University Fuculty of Natural Science and Technology Assistant Professor
2022.10 - 2023.3
Country：Japan
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National Institute of Informatics Information Systems Architecture Science Research Division Project Researcher
2018.4 - 2022.9
Professional Memberships
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ACM
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IPSJ
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IEEE
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IEICE
Papers
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Investigation Towards Detecting Landing Websites for Fake Japanese Shopping Websites Reviewed
Daigo Michishita, Satoru Kobayashi, Toshihiro Yamauchi
The 13-th International Conference on Emerging Internet, Data & Web Technologies (EIDWT-2025), Lecture Notes on Data Engineering and Communications Technologies 107 - 119 2025.4
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Verifying Network-level Properties for Large-scale Networks with Header Transformations in Realtime Reviewed
Ryusei Shiiba, Satoru Kobayashi, Osamu Akashi, Hiroki Shirokura, Kensuke Fukuda
Journal of Information Processing 33 41 - 54 2025.2
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Effectiveness of MAC Systems based on LSM and their Security Policy Configuration for Protecting IoT Devices Reviewed
Masato Miki, Toshihiro Yamauchi, Satoru Kobayashi
Journal of Internet Services and Information Security 14 ( 3 ) 293 - 315 2024.8
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Liang Zhao, Satoru Kobayashi, Kensuke Fukuda
Passive and Active Measurement Conference (PAM 2024), Lecture Notes in Computer Science (LNCS) 14537 95 - 111 2024.3
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netroub: Towards an Emulation Platform for Network Trouble Scenarios Reviewed International coauthorship
Colin Regal-Mezin, Satoru Kobayashi, Toshihiro Yamauchi
Proceedings of the CoNEXT Student Workshop 2023 17 - 18 2023.12
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Analyzing Post-injection Attacker Activities in IoT Devices: A Comprehensive Log Analysis Approach Reviewed International coauthorship
Hervet Victor, Satoru Kobayashi, Toshihiro Yamauchi
Proceedings of the 2023 Eleventh International Symposium on Computing and Networking Workshops (CANDARW) 292 - 297 2023.11
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Evaluation of Effectiveness of MAC Systems Based on LSM for Protecting IoT Devices Reviewed
Masato Miki, Toshihiro Yamauchi, Satoru Kobayashi
Proceedings of the 11th International Symposium on Computing and Networking (CANDAR 2023) 161 - 167 2023.11
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dot2net: A labeled graph approach for template-based configuration of emulation networks Reviewed
Satoru Kobayashi, Ryusei Shiiba, Ryosuke Miura, Shinsuke Miwa, Toshiyuki Miyachi, Kensuke Fukuda
Proceedings of the 19th International Conference on Network and Service Management (CNSM 2023) 342 - 350 2023.11
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An Implementation of Effective Server Resource Management Scheme Using Deep Reinforcement Learning Reviewed
Toshiki Kawakita, Kimihiro Mizutani, Satoru Kobayashi, Kensuke Fukuda, Osamu Akashi
Proceedings of the International Conference on Emerging Technologies for Communications ( S8-5 ) 1 - 1 2022.11
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A Novel Network Configuration Generation Scheme from Network Operator's Intent Described by Natural Language Reviewed
Masaya Suzuki, Kimihiro Mizutani, Satoru Kobayashi, Kensuke Fukuda, Osamu Akashi
Proceedings of the International Conference on Emerging Technologies for Communications ( S2-1 ) 1 - 1 2022.11
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Comparative Causal Analysis of Network Log Data in Two Large ISPs Reviewed
Satoru Kobayashi, Keiichi Shima, Kenjiro Cho, Osamu Akashi, Kensuke Fukuda
Proceedings of the 7th IEEE/IFIP International Workshop on Analytics for Network and Service Management (AnNet 2022) 2022.4
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amulog: A general log analysis framework for comparison and combination of diverse template generation methods Reviewed International journal
Satoru Kobayashi, Yuya Yamashiro, Kazuki Otomo, Kensuke Fukuda
International Journal of Network Management 32 ( 4 ) 2021.12
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A Scheme of Extracting Network Configuration Template Blocks Based on Tucker Decomposition Reviewed
Daisuke Hanamitsu, Kimihiro Mizutani, Satoru Kobayashi, Kensuke Fukuda, Osamu Akashi
Proceedings of the International Conference on Emerging Technologies for Communications ( P1-14 ) 1 - 1 2021.12
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Verifying Network Properties in SRv6 based Service Function Chaining Reviewed
Ryusei Shiiba, Satoru Kobayashi, Osamu Akashi, Kensuke Fukuda
Proceesings of the 16th Asian Internet Engineering Conference (AINTEC 2021) 18 - 26 2021.12
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Towards Extracting Semantics of Network Config Blocks Reviewed
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Osamu Akashi, Kimihiro Mizutani, Hiroshi Esaki
Proceesings of the 9th IEEE International Workshop on Architecture, Design, Deployment & Management of Networks & Applications (ADMNET 2021) 1438 - 1443 2021.7
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A Quantitative Causal Analysis for Network Log Data Reviewed International coauthorship
Richard Jarry, Satoru Kobayashi, Kensuke Fukuda
Proceedings of the 9th IEEE International Workshop on Architecture, Design, Deployment & Management of Networks & Applications (ADMNET 2021) 1444 - 1449 2021.7
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LogDTL: Network Log Template Generation with Deep Transfer Learning Reviewed International coauthorship
Thieu Nguyen, Satoru Kobayashi, Kensuke Fukuda
Proceedings of the 6th IEEE/IFIP International Workshop on Analytics for Network and Service Management (AnNet 2021) 848 - 853 2021.5
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Latent Semantics Approach for Network Log Analysis: Modeling and its application Reviewed
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Proceedings of the 17th IFIP/IEEE International Symposium on Integrated Network Management (IM 2021) 215 - 223 2021.5
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amulog: A General Log Analysis Framework for Diverse Template Generation Methods Reviewed
Satoru Kobayashi, Yuya Yamashiro, Kazuki Otomo, Kensuke Fukuda
Proceedings of the CNSM 2020 2020.11
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大規模 IPv6 アドレスの収集・分析 Reviewed
新津雄大, 小林諭, 福田健介, 江崎浩
電子情報通信学会論文誌 J103-B ( 6 ) 223 - 233 2020.6
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Causal analysis of network logs with layered protocols and topology knowledge Reviewed
Satoru Kobayashi, Kazuki Otomo, Kensuke Fukuda
Proceedings of CNSM 2019 2019.10
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Latent Variable based Anomaly Detection in Network System Logs Reviewed
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Transactions on Information and Systems E102-D ( 9 ) 1644 - 1652 2019.9
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ARP Request Trend Fitting for Detecting Malicious Activity in LAN Reviewed
Kai Matsufuji, Satoru Kobayashi, Hiroshi Esaki, Hideya Ochiai
Proceedings of IMCOM 2019 89 - 96 2019.1
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Finding Anomalies in Network System Logs with Latent Variables Reviewed
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Workshop on Big Data Analytics and Machine Learning for Data Communication Networks (BigDAMA) 8 - 14 2018.8
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Mining Causality of Network Events in Log Data Reviewed
Satoru Kobayashi, Kazuki Otomo, Kensuke Fukuda, Hiroshi Esaki
IEEE Transactions on Network and Service Management 15 ( 1 ) 53 - 67 2018.3
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Analyzing Burstness and Casuality of System logs Reviewed
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
ACM SIGCOMM CoNEXT 2017 Student Workshop 2017.12
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An Analysis of Burstiness and Causality of System Logs Reviewed
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Proceedings of AINTEC 2017 2017.11
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Mining causes of network events in log data with causal inference Reviewed
Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Proceedings of the IM 2017 - 2017 IFIP/IEEE International Symposium on Integrated Network and Service Management 45 - 53 2017.7
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Application of Change Point Detection to System Logs for Fault Detection Reviewed
Yu Komohara, Satoru Kobayashi, Hideya Ochiai, Hiroshi Esaki
ACM SIGCOMM CoNEXT 2016 Student Workshop (Poster Session) 2016.12
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Causation mining in network logs Reviewed
Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
ACM SIGCOMM CoNEXT 2016 Student Workshop 2016.12
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Towards an NLP-based log template generation algorithm for system log analysis Reviewed
Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Proceedings of CFI 2014 2014.6
MISC
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ネットワークログメッセージの出力元関数の自動特定手法の提案
小林 諭, Gaspard Damoiseau-Malraux, 福田 健介
電子情報通信学会技術研究報告 : 信学技報 124 ( 393 ) 15 - 22 2025.3
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偽ショッピングサイトへ誘導する踏み台サイトの検出のための実態調査
道下大悟, 小林 諭, 山内利宏
コンピュータセキュリティシンポジウム 2024 (CSS2024) 論文集 1095 - 1101 2024.10
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実行ファイルにおける関数配置順序ランダム化手法の適用によるコード再利用攻撃への耐性評価
佐治和馬, 山内利宏, 小林 諭, 谷口秀夫
コンピュータセキュリティシンポジウム 2024 (CSS2024) 論文集 8 - 15 2024.10
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大野 裕美子, 山内 利宏, 小林 諭, 谷口 秀夫
情報処理学会第86回全国大会講演論文集 2024.3
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小林諭, 石井 宏典, 山内 利宏, 明石 修, 福田 健介
電子情報通信学会技術研究報告 : 信学技報 123 ( 422 ) 233 - 240 2024.3
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石井宏典, 小林諭, 福田健介, 山内利宏
電子情報通信学会総合大会 B-7-25 2024.3
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HPCにおけるGang Schedulingの切替間隔動的変更手法
西本 伊織, 山内 利宏, 小林 諭, 加藤 純, 三輪 真弘, 谷口 秀夫
情報処理学会研究報告 2024-OS-162 ( 15 ) 1 - 7 2024.2
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実行ファイルにおける関数配置順序のランダム化によるコード再利用攻撃への耐性向上手法の提案
佐治和馬, 山内利宏, 小林諭, 谷口秀夫
情報処理学会シンポジウムシリーズ コンピュータセキュリティシンポジウム 2023 (CSS2023) 論文集 2023 1357 - 1364 2023.10
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Kohei Otani, Satoru Kobayashi, Toshihiro Yamauchi, Hideo Taniguchi
IPSJ SIG Technical Report 2023-CSEC-100 ( 62 ) 1 - 8 2023.3
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HPCクラウドにおける割り込み処理によるOSノイズの影響の評価
西本伊織, 小林諭, 山内利宏, 加藤純, 佐藤充, 谷口秀夫
情報処理学会研究報告 2023-OS-158 ( 28 ) 1 - 7 2023.2
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花光 大輔, 水谷 后宏, 小林 諭, 福田 健介, 明石 修
2022年度 情報処理学会関西支部 支部大会 講演論文集 ( G-02 ) 2022.9
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Towards a Collaborative Operational Data Analysis for Automated Network Management
Satoru Kobayashi, Kensuke Fukuda
IEICE Technical Report 122 ( 85 ) 1 - 7 2022.6
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Automatic Document Labelling to Network Log Data
Ayato Tokubi, Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Technical Report 120 ( 186 ) 1 - 6 2020.10
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Design of Honeynet to avoid IPv6 alias detection
Hyuga Kobayashi, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Technical Report 119 ( 343 ) 13 - 18 2019.12
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Improving Network Log Analysis by Semantics
Kazuki Otomo, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Technical Report 119 ( 343 ) 7 - 12 2019.12
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Log Template Estimation with Bridged Refinement
Yuya Yamashiro, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Technical Report 119 ( 318 ) 13 - 18 2019.11
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Towards application of network topology information to network log causal anlaysis
Satoru Kobayashi, Kazuki Otomo, Kensuke Fukuda
IEICE Technical Report 118 ( 360 ) 1 - 8 2018.12
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Collecting a large number of active IPv6 addresses
Yudai Aratsu, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Technical Report 118 ( 204 ) 1 - 8 2018.9
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Network Log Template Generation from Open Source Software
Yuya Yamashiro, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
IEICE Technical Report 118 ( 204 ) 15 - 22 2018.9
Presentations
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Design and Implementation of IPv6 Scan Detection System
Liang Zhao, Satoru Kobayashi, Kensuke Fukuda
IEICE General Conference 2023.3.10
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Toward a compositional data plane verification for large-scale networks
Ryusei Shiiba, Satoru Kobayashi, Osamu Akashi, Kensuke Fukuda
The 17th Asian Internet Engineering Conference (AINTEC 2022) 2022.12.20
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Causal Analysis of Network Log Events Invited
Satoru Kobayashi
JFLI Workshop 2020 on Next Generation Networking 2020.2.18
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Dot2tinet: A graph-based network configuration platform for large-scale emulation networks
Satoru Kobayashi, Ryusei Shiiba, Kensuke Fukuda
The 17th Asian Internet Engineering Conference (AINTEC 2022) 2022.12.20
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Approach to Better Log Template Generation
Yuya Yamashiro, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Internet Conference 2018 2018.11
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Collecting a large number of active IPv6 addresses
Yudai Aratsu, Satoru Kobayashi, Kensuke Fukuda, Hiroshi Esaki
Internet Conference 2018 2018.11
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Mining causality of network events in log data Invited
Satoru Kobayashi
International Cloud Resiliency Workshop 2018.10.17
Awards
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CSS2023奨励賞
2023.11 コンピュータセキュリティシンポジウム2023 実行ファイルにおける関数配置順序のランダム化によるコード再利用攻撃への耐性向上手法の提案
佐治和馬, 山内利宏, 小林諭, 谷口秀夫
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IA研究賞(優秀研究賞)
2021.6 電子情報通信学会 インターネットアーキテクチャ研究会 ネットワークログデータへの自動文書ラベリングの提案
徳備彩人, 大友 一樹, 小林 諭, 福田 健介, 江崎 浩
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IA研究賞(優秀研究賞)
2019.6 電子情報通信学会 インターネットアーキテクチャ研究会 大規模IPv6アドレス収集手法に関する検討
新津 雄大, 小林 諭, 福田 健介, 江崎 浩
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Dean’s award for outstanding thesis (master’s thesis)
2015.3 The University of Tokyo, Graduate school of Information Science and Technology
Satoru Kobayashi
Research Projects
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オペレータ知識を活用するネットワーク障害原因究明支援技術の研究
Grant number：25K15079 2025.04 - 2030.03
日本学術振興会 科学研究費助成事業 基盤研究(C)
小林 諭
Authorship：Principal investigator
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機密VM環境における機密情報の拡散追跡と証拠保全を実現する基盤ソフトウェアの研究
Grant number：25K03119 2025.04 - 2029.03
日本学術振興会 科学研究費助成事業 基盤研究(B)
山内 利宏, 谷口 秀夫, 森山 英明, 佐藤 将也, 葛野 弘樹, 小林 諭
Authorship：Coinvestigator(s)
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ネットワーク障害原因究明支援技術のためのオペレータ知識基盤の評価と改善
Grant number：251S1-22594 2025.04 - 2026.03
国立情報学研究所 2025年度 国立情報学研究所公募型共同研究 戦略研究公募型 戦略研究公募型
小林 諭, 福田 健介, 明石 修
Authorship：Principal investigator
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ネットワーク障害原因究明支援技術へのオペレータ知識導入に関する研究
2024.04 - 2025.03
国立情報学研究所 2024年度 国立情報学研究所公募型共同研究 戦略研究公募型
小林諭, 福田健介, 明石修
Authorship：Principal investigator
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ネットワーク障害原因究明支援に向けたネットワークログ対話的因果解析のための運用データ統合可視化システムの研究
Grant number：23S0901 2023.04 - 2024.03
国立情報学研究所 2023年度 国立情報学研究所公募型共同研究 戦略研究公募型
小林諭, 福田健介, 山内利宏, 明石修
Authorship：Principal investigator
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機器毎のソフトウェア構成変更による攻撃難化と攻撃耐性を持つ基盤ソフトウェアの研究
Grant number：22H03592 2022.04 - 2026.03
日本学術振興会 科学研究費助成事業 基盤研究(B)
山内 利宏, 谷口 秀夫, 森山 英明, 佐藤 将也, 葛野 弘樹, 小林 諭
Authorship：Coinvestigator(s) Grant type：Competitive
Grant amount：\17290000 （ Direct expense: \13300000 、 Indirect expense：\3990000 ）
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ネットワーク自動運用のための運用データ連携解析
Grant number：22K17886 2022.04 - 2025.03
日本学術振興会 科学研究費助成事業 若手研究
小林 諭
Authorship：Principal investigator
Grant amount：\4680000 （ Direct expense: \3600000 、 Indirect expense：\1080000 ）
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セマンティクス抽出と因果解析によるネットワーク障害対応支援に関する研究
2019.06 - 2022.03
総務省 戦略的情報通信研究開発推進制度
福田健介, 小林諭, 明石修, 長健二朗, 島慶一
Authorship：Coinvestigator(s) Grant type：Competitive
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Knowledge mining of large-scale network operational data for troubleshooting and predictive analysis
Grant number：19K20262 2019.04 - 2021.03
Japan Society for the Promotion of Science Grants-in-Aid for Scientific Research Grant-in-Aid for Early-Career Scientists
Kobayashi Satoru
Authorship：Principal investigator Grant type：Competitive
In this research, we proposed a new analysis approach for network operational data on the basis of causal inference, to help troubleshooting of large-scale networks. We proposed two analysis frameworks: "amulog", a general log analysis framework to estimate log templates and classify messages with them in online processing, and "logdag", a causal analysis framework designed for network operational data including logs and measured SNMP data. The proposed technology will help operators to extract contextual information in operational data automatically.
Class subject in charge
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Software Development Practice （2024academic year） Prophase - その他
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Software Development Methodology (Basic) （2024academic year） Prophase - 月3～8
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Software Development Methodology (Advanced) （2024academic year） Prophase - 月3～8
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Software Development Methodology 1 （2024academic year） Prophase - 月3～8
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Software Development Methodology 2 （2024academic year） Prophase - 月3
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Exercises on Programming 1 （2024academic year） 1st semester - 水1～3
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Exercises on Programming 2 （2024academic year） Second semester - 水1～3
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Exercises on Programming 1 （2024academic year） 1st semester - 水1～3
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Exercises on Programming 2 （2024academic year） Second semester - 水1～3
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Information Technology Experiments A (Computer Hardware) （2024academic year） 1st semester - 月3～7,木3～7
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Information Technology Experiments C (Computer Software) （2024academic year） Fourth semester - 火3～7,金3～7
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Information Technology Experiments A (Computer Hardware) （2024academic year） 1st semester - 月3～7,木3～7
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Information Technology Experiments C (Computer Software) （2024academic year） Fourth semester - 火3～7,金3～7
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Engineering English （2024academic year） Late - その他
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Engineering English （2024academic year） Late - その他
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Advanced Study （2024academic year） Other - その他
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Technical Writing 1 （2024academic year） Prophase - その他
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Technical Writing 2 （2024academic year） Late - その他
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Technical Writing （2024academic year） Prophase - その他
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Technical Presentation （2024academic year） Late - その他
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Specific Research of Electronics and Information Systems Engineering （2024academic year） Year-round - その他
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Exercises on Programming 1 （2023academic year） 1st semester - 水1～3
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Exercises on Programming 2 （2023academic year） Second semester - 水1～3
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Exercises on Programming 1 （2023academic year） 1st semester - 水1～3
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Exercises on Programming 2 （2023academic year） Second semester - 水1～3
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Information Technology Experiments A (Computer Hardware) （2023academic year） 1st semester - 月3～7,木3～7
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Information Technology Experiments C (Computer Software) （2023academic year） Fourth semester - 火3～7,金3～7
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Information Technology Experiments A (Computer Hardware) （2023academic year） 1st semester - 月3～7,木3～7
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Information Technology Experiments C (Computer Software) （2023academic year） Fourth semester - 火3～7,金3～7
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Engineering English （2023academic year） Late - その他
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Advanced Study （2023academic year） Other - その他
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Technical Writing 1 （2023academic year） Prophase - その他
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Technical Writing 2 （2023academic year） Late - その他
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Information Technology Experiments C (Computer Software) （2022academic year） Fourth semester - 火3～7,木3～7