me

Hampei SASAHARA
Assistant Professor
Tokyo Institute of Technology
: 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
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