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IEEE International Conference on Consumer Electronics (ICCE)

作者： Jedidah Mwaura Shunsuke Araki Muhammad Bisri Musthafa Samsul Huda Yasuyuki Nogami Graduate School of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Graduate School of Environmental Life Natural Science and Technology Okayama University Okayama Japan Green Innovation Center Okayama University Okayama Japan

ISBN: (数字)9798331521165

ISBN: (纸本)9798331521172

Currently, there are many ongoing attempts to incorporate transfer learning into Intrusion Detection systems. Transfer learning leverages on the knowledge of previous models thus reducing training time, improving accuracy and making it possible to train new models with limited data. However, it is difficult to incorporate such a technique into IoT devices with limited computational power. In this paper, we propose a Transfer Learning TinyML-based IDS framework with feature selection to be implemented on a microcontroller for detecting attacks on IoT devices. To implement the proposal, we leveraged knowledge achieved from our previous DDoS attack detection model to create a new transfer learning framework that could detect various IoT attacks such as malware attacks and zero-day attacks. To test the transfer learning framework, we trained it using two separate sets of datasets each containing different attacks. After each training, we evaluated the original model, converted it into a format compatible with a microcontroller and evaluated it further. The TL TinyML-based framework was evaluated based on its accuracy, model sizes and average inference times. As the results confirmed, the framework performed well and can successfully be implemented on a microcontroller without depleting its resources.

关键词： Training Accuracy Microcontrollers Computational modeling Transfer learning Intrusion detection Feature extraction Malware Data models Internet of Things

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Function for Tracing Diffusion of Classified Information to Support Multiple VMs with KVM 9

Function for Tracing Diffusion of Classified Information to ...

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9th International Symposium on Computing and Networking Workshops, CANDARW 2021

作者： Otani, Kohei Okazaki, Toshiki Yamauchi, Toshihiro Moriyama, Hideaki Sato, Masaya Taniguchi, Hideo Graduate School of Natural Science And Technology Okayama University Okayama Japan National Institute of Technology Ariake College Department of Creative Engineering Fukuoka Japan Faculty of Computer Science And Systems Engineering Okayama Prefectural University Okayama Japan

ISBN: (纸本)9781665428354

To handle information leaks caused by administrative errors or mishandling, a function for tracing the diffusion of classified information using a virtual machine monitor (VMM) was proposed. However, the proposed function has not been investigated in cases in which virtual machines (VMs) allocated by multiple virtual central processing units (vCPUs) are to be monitored. In addition, cases in which multiple VMs are monitored have not been examined. In this study, we describe the support of multiple VMs for the proposed VMM-based tracing function. We also show how to deal with VMs allocated by multiple vCPUs. Furthermore, we report the evaluation results from assessing the traceability of the improved proposed method and its overhead for classified information when a VM with multiple vCPUs is monitored. © 2021 IEEE.

关键词： Virtual machine

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Distributed formation control of end-effector of mixed planar fully- and under-actuated manipulators

arXiv

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arXiv 2023年

作者： Peng, Zhiyu Jayawardhana, Bayu Xin, Xin School of Automation Southeast University Nanjing210096 China Engineering and Technology Institute Groningen Faculty of Science and Engineering University of Groningen Groningen9747 AG Netherlands Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama719-1197 Japan

This paper addresses the problem of end-effector formation control for a mixed group of two-link manipulators moving in a horizontal plane that comprises of fully-actuated manipulators and underactuated manipulators with only the second joint being actuated (referred to as the passive-active (PA) manipulators). The problem is solved by extending the distributed end-effector formation controller for the fully-actuated manipulator to the PA manipulator moving in a horizontal plane by using its integrability. This paper presents stability analysis of the closed-loop systems under a given necessary condition, and we prove that the manipulators’ end-effector converge to the desired formation shape. The proposed method is validated by simulations. Copyright © 2023, The Authors. All rights reserved.

关键词： End effectors

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A requirement analysis method for the design of the upgradable product-service system

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Procedia CIRP 2023年 119卷 402-407页

作者： Hanfei Wang Yuya Mitake Yusuke Tsutsui Salman Alfarisi Yoshiki Shimomura Faculty of Systems Design Tokyo Metropolitan University Asahigaoka 6-6 Hino-shi Tokyo 191-0065 Japan Human Augmentation Research Center National Institute of Advanced Industrial Science and Technology Chiba 277-0882 Japan Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama 719-1197 Japan

For extending the life cycle of products and satisfying the further requirement of customers, product-service system (PSS), an integration of products and services is considered as a promising solution. However, for PSS design, customers’ expectations on the purchased product could be changed due to the development of technology and fashion. For this reason, the life of value might be exhausted before the real life of a product. Although there are some existing upgrade plans or maintenance plans for PSS design, it is found to be risky for PSS firms to provide the mentioned plans that are threatened by various uncertain events. Thus, to achieve an upgradable PSS, it is extremely essential to propose a method to identify the requirement for upgradability based on the perspective of customers. To achieve this aim, this paper has developed a method includes four steps. In step one, a set of definitions is provided to clarify the upgradability of PSS. In step 2, this study utilizes a PEST-OT matrix to analyze the driver of the future development. Step3 uses a persona-based explorative scenario building method to identify the characteristic of targeted customer and build a scenario of interaction between customer and PSS in a future scenario. Step 4 provides a requirement transformation method to transform the requirement into receiver state parameter (RSP). After that, the RSP is transformed into detailed product characteristics (PChs) and service characteristics (SChs). To verify the effectiveness, a case study of shared furniture is used. The result of the case study shows this method could work effectively in a Business-to-Customer business.

关键词： upgradable product-service system customer requirement analysis scenario building upgrade strategy

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A Multi - Aspect Evaluation of DL-based SQLi Attack Detection Models

A Multi - Aspect Evaluation of DL-based SQLi Attack Detectio...

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International Conference on Software engineering Research, Management and Applications (SERA)

作者： Pattara Leelaprute Yuki Kase Sousuke Amasaki Hirohisa Aman Tomoyuki Yokogawa Department of Computer Engineering Faculty of Engineering Kasetsart University Bangkok Thailand Department of Systems Engineering Okayama Prefectural University Soja Japan Center for Information Technology Ehime University Matsuyama Japan

ISBN: (数字)9798350391343

ISBN: (纸本)9798350391350

CONTEXT: Web applications are exposed to malicious accesses through the Internet. SQL injection (SQLi) attacks are still a typical threat to web application providers. Although recent studies proposed deep learning-based SQLi attack detection models with high performance, those studies were not evaluated under the same conditions. Crucial aspects other than the predictive performance were also overlooked. OBJECTIVE: To evaluate SQLi attack detection models from multi-aspects related to its operation. METHOD: Three aspects, namely, predictive performance, detection speed, and operation costs, were applied to deep learning-based SQLi attack detection models. RESULTS: No DL-based model beaten a conventional machine learning-based model, Random Forests. CONCLUSION: Researchers must evaluate DL-based SQLi attack detection models with conventional ones with hyper-parameter tuning.

关键词： Support vector machines Costs SQL injection Predictive models Internet Random forests Tuning

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Accuracy Evaluation of Stereo Visual SLAM with Unnecessary Feature Point Elimination Using Blur Processing for AR Surgical Support System

Accuracy Evaluation of Stereo Visual SLAM with Unnecessary F...

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International Conference on Intelligent Informatics and Biomedical sciences (ICIIBMS)

作者： Masanao Koeda Yuto Kaihara Atsuro Sawada Akihiro Hamada Toshihiro Magaribuchi Osamu Ogawa Katsuhiko Onishi Hiroshi Noborio Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama Japan Department of Urology Graduate School of Medicine Kyoto University Kyoto Japan Faculty of Information Science and Arts Osaka Electro-Communication University Osaka Japan

In this study, we describe an evaluation of the positional accuracy of stereo Visual SLAM with noisy feature points removed by blurring. We constructed an experimental environment that intentionally degrades the accuracy of Visual SLAM. In this environment, we placed the objects that are likely to generate noisy feature points. We evaluated the accuracy of the estimated positions of the original video and the video in which blurred regions of noise in the original video were provided to Visual SLAM. Consequently, we confirmed that the accuracy was improved compared to that of the original video.

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Energy-based Control of Three-Link Planar Robot with Last Active Link

Energy-based Control of Three-Link Planar Robot with Last Ac...

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Chinese Automation Congress (CAC)

作者： Yongjia Wang Xin Xin Yannian Liu School of Automation Southeast University Nanjing China Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama Japan

This paper studies the energy-based control for a 3-link planar robot with last active link, for which the angle between the last link and the vertical is actuated. The swing-up and stabilizing task around the robot’s upright equilibrium point (UEP) is investigated. An energy-based controller is derived to control both its overall energy and actuated variable. By presenting a property of the robot that holds under arbitrary physical parameters, this paper proves that almost all initial states converge to an invariant set where the last link is upright and the robot’s overall energy equals its value at the UEP, providing certain requirements on control gains are satisfied. This paper provides simulation verification for the obtained theoretical results, in which a local stabilizing controller is utilized to accomplish stabilization at the UEP.

关键词： Analytical models Automation Switches Control systems Trajectory Task analysis Robots

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Report on the 27th Foundation of Software engineering Workshop (FOSE2020).

Report on the 27th Foundation of Software Engineering Worksh...

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作者： Ishio, Takashi Amasaki, Sousuke Monden, Akito Graduate School of Science and Technology Nara Institute of Science and Technology Japan Faculty of Computer Science and Systems Engineering Okayama Prefectural University Japan Graduate School of Natural Science and Technology Okayama University Japan

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Trajectory Planning and Tracking Control for the Pendubot

Trajectory Planning and Tracking Control for the Pendubot

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Chinese Automation Congress (CAC)

作者： Bin Xu Xin Xin Yuhang Yan Yannian Liu School of Automation Southeast University Nanjing China Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama Japan

In this paper, we study the trajectory planning and tracking control for the Pendubot, which is a two-link robot has a single actuator at the base joint of the first link. We realize a fast swing-down control under the sinusoidal-derivative (SD) controller which introduces a damper and spring, and obtain a desired trajectory of the state and the control input by using the swing-down controller and the time-reversal method. To track such a trajectory, we derive the linearized time-varying model of the Pendubot around the trajectory, and design a linear state feedback control along with a feedforward term determined by the trajectory of the control input. We study several obtained trajectories and focus on two issues: 1) the linear controllability of the corresponding linearized time-varying model for each trajectory; 2) the sufficient condition in the literature for checking the stability of the tracking control of the linearized time-varying model. Through our numerical investigation, we find that we have to choose appropriate control gains of the SD controller to guarantee the linear controllability, and that the sufficient condition is difficult to be satisfied.

关键词： Sufficient conditions State feedback Trajectory planning Trajectory tracking Controllability Stability analysis Trajectory

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Energy-based Swing-up Control with Parameter Optimization for a Rings Gymnastic Robot

Energy-based Swing-up Control with Parameter Optimization fo...

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Chinese Automation Congress (CAC)

作者： Jiangyong Hu Xin Xin Yuhang Yan Zhiyu Peng Yannian Liu School of Automation Southeast University Nanjing China Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama Japan

In this paper, we study a ring gymnastic robot, which is a planar robot with three links moving in the vertical plane with only the last joint activated. First, we use the energy-based strategy to study the swing-up control task of the rings gymnastic robot, and obtain the sufficient and necessary condition for non-existence of singularities in the energy-based controller. Second, we derive the invariant set approached by the closed-loop system. Third, we propose an optimization algorithm to obtain the parameters of the energy-based controller to swing up the rings gymnastic robot into a close neighbourhood of a desired equilibrium point. Fourth, we check on the feasibility of the devised controller and parameter optimization algorithm through simulation.

关键词： Automation Numerical models Closed loop systems Task analysis Robots Optimization

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