Hampei SASAHARA Assistant Professor Institute of Science Tokyo : sasahara AT sc.e.titech.ac.jp : @HampeiSasahara
VISION: Secure-CPHS (cyber-physical-human system) design ISSUE: Vulnerabilities from interaction among information/physics/humans APPROACH: Mathematical methods based on control theory, game theory, and statistical inference [Research Vision]
News
| 2024 | |
| 1st Oct. | Institute of Science Tokyo has been established as integration of Tokyo Institute of Technology and Tokyo Medical and Dental University. |
| 25th July |
Accepted at IEEE Transactions on Emerging Topics in Computational Intelligence
Xun Shen, Hampei Sasahara, Jun-ichi Imura, Makito Oku, and Kazuyuki Aihara, "Re-stabilizing Large-Scale Network Systems Using High-Dimension Low-Sample-Size Data Analysis" |
| 26th May |
Accepted at IEEE Conference on Control Technology and Applications
Taira Kaminaga and Hampei Sasahara, "Adversarial Attack using Projected Gradient Method to Direct Data-Driven Control" |
| 29th Feb. | Research Grant Accepted: JSPS Grant-in-Aid for Early-Career Scientists "Reliable Control Mechanism under Unreliable Data Environment" |
| 1st Feb. | Invited Talk at University of California, Santa Cruz, Cyber-Physical Systems Research Center |
| 26th Jan. |
Accepted at IFAC Journal of Systems and Control
Xun Shen, Naruto Shimada, Hampei Sasahara, and Jun-ichi Imura, "Early Medical Treatment-Oriented System Identification Using Low-Sample-Size Data" |
| 2023 | |
| 4th Dec. |
Accepted at IEEE Transactions on Automatic Control
Hampei Sasahara and Henrik Sandberg, "Asymptotic Security using Bayesian Defense Mechanism with Application to Cyber Deception" [preprint] |
| 12th July |
Accepted at IEEE Conference on Decision and Control 2023
Hampei Sasahara, "Adversarial Attacks to Direct Data-driven Control for Destabilization" [preprint] |
| 6th May |
Accepted at IEEE Access
Xun Shen, Hampei Sasahara, Masahide Morishita, Jun-ichi Imura, Makito Oku, and Kazuyuki Aihara, "Model-free Dominant Pole Placement for Restabilizing High-Dimensional Network Systems via Small-Sample-Size Data" |
| 11th Apr. |
Accepted at International Journal of Robust and Nonlinear Control
Hitoshi Yasukata, Xun Shen, Hampei Sasahara, Jun-ichi Imura, Makito Oku, and Kazuyuki Aihara, "Design of Input Assignment and Feedback Gains for Re-stabilizing Undirected Networks with High-dimension Low-sample-size Data" |
| 13th Mar. | Submitted: Hampei Sasahara, "Adversarial Attacks to Direct Data-driven Control for Destabilization" [preprint] |
| 4th Mar. |
Accepted at IFAC World Congress 2023
4 regular papers, 1 discussion paper |
| 3rd Jan. |
Accepted at IEEE Transactions on Automatic Control
[early access]
Hampei Sasahara, Takayuki Ishizaki, Jun-ichi Imura, Henrik Sandberg, and Karl Henrik Johansson, "Distributed Design of Glocal Controllers via Hierarchical Model Decomposition" |
| 2022 | |
| 9th Dec. |
Presentation at IEEE CDC 2022 Organization of Invited Session "Learning and AI Methods for CPS Security" with Prof. Quanyan Zhu (NYU) |
| 25th Nov. | Research Grant Accepted: Fundamental Research Fellowship from TokyoTech Institute of Innovative Research |
| 18th Nov. | Submitted to IFAC World Congress 2023 |
| 5th Sept. | Research Grant Accepted: JSPS Research Activity Start-up "Building Foundation for CPS Security Risk Evaluation based on Continuous State-Space Model" |
| 23rd Aug. | Presentation at IEEE CCTA 2022 |
| 16th July |
Accepted at IEEE Conference on Decision and Control 2022
1. Hampei Sasahara, György Dán, Saurabh Amin, and Henrik Sandberg, "Green Routing Game: Strategic Logistical Planning using Mixed Fleets of ICEVs and EVs" [preprint] 2. Hampei Sasahara, Takashi Tanaka, and Henrik Sandberg, "Attack Impact Evaluation by Exact Convexification through State Space Augmentation" [preprint] |
| 1st Apr. |
Submitted for conference publication 1. Hampei Sasahara, György Dán, Saurabh Amin, and Henrik Sandberg, "Green Routing Game: Strategic Logistical Planning using Mixed Fleets of ICEVs and EVs" [preprint] 2. Hampei Sasahara, Takashi Tanaka, and Henrik Sandberg, "Attack Impact Evaluation by Exact Convexification through State Space Augmentation" [preprint] |
| 9th Mar. | I received SICE International Young Authors Award, which is given to early-stage researchers under 35 years old who are working internationally. Many thanks to all of you. |
| 8th Feb. |
Submitted for journal publication
[preprint]
Hampei Sasahara and Henrik Sandberg, "Asymptotic Security using Bayesian Defense Mechanism with Application to Cyber Deception" |
| 1st Jan. | new position: Assistant Professor at Tokyo Institute of Technology |
| 2021 | |
| 15th Dec. | Presentation at IEEE CDC 2021 |
| 4th Oct. |
Accepted at IEEE Transactions on Control Systems Technology
[early access]
Hampei Sasahara, Takayuki Ishizaki, Jun-ichi Imura, and Henrik Sandberg, "Disconnection-aware Attack Detection and Isolation with Separation-based Detector Reconfiguration" |
| 27th July |
Accepted at IEEE Conference on Decision and Control 2021
[preprint]
Hampei Sasahara and Henrik Sandberg, "Asymptotic Security by Model-based Incident Handlers for Markov Decision Processes" |
| 27th July |
Accepted at IEEE Conference on Decision and Control 2021 as L-CSS paper
[early access]
Hampei Sasahara and Henrik Sandberg, "Epistemic Signaling Games for Cyber Deception with Asymmetric Recognition" |
| 2nd June |
Accepted at IEEE Control Systems Letters (L-CSS)
[early access]
Hampei Sasahara and Henrik Sandberg, "Epistemic Signaling Games for Cyber Deception with Asymmetric Recognition" |
| 8th May |
Accepted at IEEE Transactions on Automatic Control
[early access]
Hampei Sasahara, Takayuki Ishizaki, and Jun-ichi Imura, "Parameterization of All Output-Rectifying Retrofit Controllers" |
| 4th Mar. |
Submitted for journal/conference publication
[preprint]
Hampei Sasahara and Henrik Sandberg, "Epistemic Signaling Games for Cyber Deception with Asymmetric Recognition" |
| 26th Feb. |
Accepted at European Control Conference 2021
[preprint]
Martin Lindström, Hampei Sasahara, Xingkang He, Henrik Sandberg, and Karl Henrik Johansson, "Power Injection Attacks in Smart Distribution Grids with Photovoltaics" |
| 2020 | |
| 16th Dec. | Presentation at IEEE CDC 2020 |
| 16th Nov. |
Submitted for journal publication
[preprint]
Hampei Sasahara, Takayuki Ishizaki, Jun-ichi Imura, Henrik Sandberg, and Karl Henrik Johansson, "Distributed Design of Glocal Controllers via Hierarchical Model Decomposition" |
| 4th Nov. | A press release of our work on retrofit control theory has been published. [Link] |
| 28th Oct. |
Accepted at IEEE Transactions on Automatic Control
[early access]
Takayuki Ishizaki, Hampei Sasahara, Masaki Inoue, Takahiro Kawaguchi, and Jun-ichi Imura, "Modularity-in-Design of Dynamical Network Systems: Retrofit Control Approach" |
| 23rd Sept. |
Submitted for journal publication
[preprint]
Hampei Sasahara, Takayuki Ishizaki, Jun-ichi Imura, and Henrik Sandberg, "Disconnection-aware Attack Detection and Isolation with Separation-based Detector Reconfiguration" |
| 26th Aug. |
Submitted for journal publication
[preprint]
Hampei Sasahara, Takayuki Ishizaki, and Jun-ichi Imura, "Parameterization of All Output-Rectifying Retrofit Controllers" |
| 16th July |
Accepted at IEEE Conference on Decision and Control 2020
[preprint]
Hampei Sasahara, Serkan Sarıtaş, and Henrik Sandberg, "Asymptotic Security of Control Systems by Covert Reaction: Repeated Signaling Game with Undisclosed Belief" |
| 16th June | Presentation at IFAC World Congress 2020 |