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5,506 results on '"Arai, Kohei"'

2. Image Classification Method Based on Chaos Neural Network

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, and Arai, Kohei, editor

Published
2024
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5. Ultrafast single-channel machine vision based on neuro-inspired photonic computing

Author

Yamaguchi, Tomoya, Arai, Kohei, Niiyama, Tomoaki, Uchida, Atsushi, and Sunada, Satoshi

Subjects
Physics - Optics, Computer Science - Emerging Technologies, Computer Science - Neural and Evolutionary Computing, Electrical Engineering and Systems Science - Image and Video Processing
Abstract

High-speed machine vision is increasing its importance in both scientific and technological applications. Neuro-inspired photonic computing is a promising approach to speed-up machine vision processing with ultralow latency. However, the processing rate is fundamentally limited by the low frame rate of image sensors, typically operating at tens of hertz. Here, we propose an image-sensor-free machine vision framework, which optically processes real-world visual information with only a single input channel, based on a random temporal encoding technique. This approach allows for compressive acquisitions of visual information with a single channel at gigahertz rates, outperforming conventional approaches, and enables its direct photonic processing using a photonic reservoir computer in a time domain. We experimentally demonstrate that the proposed approach is capable of high-speed image recognition and anomaly detection, and furthermore, it can be used for high-speed imaging. The proposed approach is multipurpose and can be extended for a wide range of applications, including tracking, controlling, and capturing sub-nanosecond phenomena., Comment: 30 pages, 12 figures

Published
2023
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7. Simultaneous Estimation Method of Mutually Correlated Geophysical Parameters and Its Application of Aerosol Parameter Estimation

Author

Arai, Kohei, Lian, Xing Ming, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, and Arai, Kohei, editor

Published
2023
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14. Prediction of Isoflavone Content in Soybeans with Sentinel-2 Optical Sensor Data by Means of Regressive Analysis

Author

Arai, Kohei, Shigetomi, Osamu, Ohtsubo, Hideki, Ohya, Eri, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, and Arai, Kohei, editor

Published
2022
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16. Circle Feature Extraction from Remote Sensing Satellite Images Based on Polar Coordinate Representation of Wavelets

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, and Arai, Kohei, editor

Published
2021
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17. Development of Autodesk-based Digital Teaching Materials as a Support for Basic Digital Engineering Learning in Vocational Schools

Author

Nur Handayani Anik, Nur Fitrianti Nabila, Kusumawardana Arya, Elmunsyah Hakkun, Arai Kohei, and Andrie Asmara Rosa

Subjects
Environmental sciences, GE1-350
Abstract

This study aims to design and develop teaching materials for Basic Digital Engineering material in the Basics of Electronics Engineering Subject at the Mechatronics Department of SMKN 4 Malang. Obstacles in learning Basic Digital Engineering, lack of practicum facilities and learning resources, encourage the development of digital teaching materials as a structured solution. Autodesk Tinkercad platform is used to support offline practicum implementation. The purpose of using Autodesk-based learning to encourage students to collaborate and continue to carry out practicum independently outside the school environment. This research includes the development of job sheets consisting of teacher’s handbook and student’s handbook, covering basic logic gates, advanced logic gates, and introduction to microcontrollers. In addition, a guidebook was also developed to optimize the use of Autodesk Tinkercad. This research involves testing the feasibility of job sheets and guidebooks in learning Basic Digital Engineering Materials using the Autodesk Tinkercad platform. The results of this study can contribute to improving the quality of learning and conclude that the use of digital teaching materials with the support of Autodesk Tinkercad can increase student independence in Basic Digital Engineering Materials.

Published
2024
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18. Development of Interactive Virtual Laboratory Media with Tinkercad Platform on Analog Electronics Material

Author

Nur Handayani Anik, Sonia Nafista Salsabila, Kusumawardana Arya, Elmunsyah Hakkun, Arai Kohei, and Andrie Asmara Rosa

Subjects
Environmental sciences, GE1-350
Abstract

The development of science and technology has experienced rapid progress which has a significant impact on people’s lives. One of the affected fields is education, where the utilization of science and technology can strengthen the learning process. In this context, the development of the right strategy and the use of supporting components are very effective. This research aims to analyze and develop the needs of teaching materials in the subject of Fundamentals of Electronic Engineering, focusing on Analog Electronics material. The method used is the development of teaching materials in the form of V-Lab-based jobsheets using the tinkercad website platform, as well as the preparation of guidebooks for teachers and students of Mechatronics Engineering in the subject of Basics of Electronics Engineering, especially on Analog Electronics material. Furthermore, the feasibility of V-Lab-based teaching materials using the Tinkercad website platform was tested. The results show that the use of the Tinkercad platform makes it easy to simulate electronic circuits without the need to install additional software. This platform helps students in better understanding the analog electronics material, as it can be accessed flexibly. Based on these findings, it can be concluded that the development of V-Lab-based teaching materials through the Tinkercad platform has great potential in improving the quality of analog electronics learning.

Published
2024
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21. Method for Estimation of Multiple Reflection, Scattering and Absorption in Mountainous Areas of Remote Sensing Satellite Data

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, Bhatia, Rahul, editor, and Kapoor, Supriya, editor

Published
2020
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22. Image Retrieval Method Based on Back-Projection

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, and Kapoor, Supriya, editor

Published
2020
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23. A Method for Maintaining a Unique Kurume Kasuri Pattern of Woven Textile Classified by EfficientNet by Means of LightGBM-Based Prediction of Misalignments.

Author

Arai, Kohei, Shimazoe, Jin, and Oda, Mariko

Subjects
*WEAVING patterns, *TEXTILE patterns, *WEAVING, *PROBLEM solving, *TEXTILES
Abstract

Methods for evaluating the fluctuation of texture patterns that are essentially regular have been proposed in the past, but the best method has not been determined. Here, as an attempt at this, we propose a method that applies AI technology (learning EfficientNet, which is widely used as a classification problem solving method) to determine when the fluctuation exceeds the tolerable limit and what the acceptable range is. We also apply this to clarify the tolerable limit of fluctuation in the "Kurume Kasuri" pattern, which is unique to the Chikugo region of Japan, and devise a method to evaluate the fluctuation in real time when weaving the Kasuri and keep it within the acceptable range. This study proposes a method for maintaining a unique faded pattern of woven textiles by utilizing EfficientNet for classification, fine-tuned with Optuna, and LightGBM for predicting subtle misalignments. Our experiments show that EfficientNet achieves high performance in classifying the quality of unique faded patterns in woven textiles. Additionally, LightGBM demonstrates near-perfect accuracy in predicting subtle misalignments within the acceptable range for high-quality faded patterns by controlling the weaving thread tension. Consequently, this method effectively maintains the quality of Kurume Kasuri patterns within the desired criteria. [ABSTRACT FROM AUTHOR]

Published
2024
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25. Effects of Managerial Coaching on Critical Reflection: Mediating Role of Learning Goal Orientation

Author

Matsuo, Makoto, Arai, Kohei, and Matsuo, Takami

Abstract

Purpose: The purpose of this paper is to investigate the direct and indirect effects of managerial coaching on critical reflection mediated through learning goal orientation. Design/methodology/approach: The authors conducted a questionnaire survey of 169 employees in 53 teams at an IT firm in Japan. The data were examined using multi-level analyses. Findings: Managerial coaching has a direct positive effect on critical reflection, and the relationship is mediated by learning goal orientation. Research limitations/implications: The characteristics of the sample may limit the generalization of the findings. Future research should verify the model in other industries and countries. Practical implications: The organizations should note that managerial coaching is useful not only for facilitating employees' problem-solving but also for enhancing their critical reflection. It should also be noted that employees can reflect critically on their beliefs and work routines when they have learning goals. Originality/value: Although few quantitative studies have investigated the determinants of critical reflection, the present research reveals the overlooked functions of managerial coaching in promoting employees' learning.

Published
2020
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26. Empowering Leadership and Meaningful Work: The Mediating Role of Learning Goal Orientation

Author

Matsuo, Makoto, Arai, Kohei, and Matsuo, Takami

Abstract

Drawing on positive psychology and self-determination theories, this study investigates the direct and indirect effects of empowering leadership on meaningful work of employees, particularly through the mediation of learning goal orientation. Longitudinal survey data of 388 employees in medical institutions were used to test the hypotheses. The results support the direct positive relationship between empowering leadership and meaningful work, but also emphasize the mediating effect of learning goal orientation within this relationship. This study is among the first to examine the effect of mediation by learning goal orientation upon the relationship between empowering leadership and meaningful work.

Published
2019
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27. Sports Vision Based Tennis Player Training

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, Bhatia, Rahul, editor, and Kapoor, Supriya, editor

Published
2019
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28. Effectiveness of NEdT and Band 10 (8.3 μm) of ASTER/TIR on SSST Estimation

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, Kapoor, Supriya, editor, and Bhatia, Rahul, editor

Published
2019
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29. Mobile Phone Operations Just by Sight and Its Applications

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, Kapoor, Supriya, editor, and Bhatia, Rahul, editor

Published
2019
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30. Method for Audible Representation of Meteorological Data Derived from Remote Sensing Satellites

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Arai, Kohei, editor, Kapoor, Supriya, editor, and Bhatia, Rahul, editor

Published
2019
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33. Intelligent Method for 3D Image Display with Semitransparent Object Representations

Author

Arai, Kohei, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Bi, Yaxin, editor, Bhatia, Rahul, editor, and Kapoor, Supriya, editor

Published
2020
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34. ACIX-Aqua: A global assessment of atmospheric correction methods for Landsat-8 and Sentinel-2 over lakes, rivers, and coastal waters

Author

Pahlevan, Nima, Mangin, Antoine, Balasubramanian, Sundarabalan V., Smith, Brandon, Alikas, Krista, Arai, Kohei, Barbosa, Claudio, Bélanger, Simon, Binding, Caren, Bresciani, Mariano, Giardino, Claudia, Gurlin, Daniela, Fan, Yongzhen, Harmel, Tristan, Hunter, Peter, Ishikaza, Joji, Kratzer, Susanne, Lehmann, Moritz K., Ligi, Martin, Ma, Ronghua, Martin-Lauzer, François-Régis, Olmanson, Leif, Oppelt, Natascha, Pan, Yanqun, Peters, Steef, Reynaud, Nathalie, Sander de Carvalho, Lino A., Simis, Stefan, Spyrakos, Evangelos, Steinmetz, François, Stelzer, Kerstin, Sterckx, Sindy, Tormos, Thierry, Tyler, Andrew, Vanhellemont, Quinten, and Warren, Mark

Published
2021
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43. iHelp HEMOCS Application for Helping Disabled People Communicate by Head Movement Control

Author

Tolle, Herman, Arai, Kohei, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Series editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, and Latifi, Shahram, editor

Published
2018
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47. Computer Input Just by Sight and Its Applications in Particular for Disable Persons

Author

Arai, Kohei, Kacprzyk, Janusz, Series editor, Pal, Nikhil R., Advisory editor, Bello Perez, Rafael, Advisory editor, Corchado, Emilio S., Advisory editor, Hagras, Hani, Advisory editor, Kóczy, László T., Series editor, Kreinovich, Vladik, Advisory editor, Lin, Chin-Teng, Advisory editor, Lu, Jie, Advisory editor, Melin, Patricia, Advisory editor, Nedjah, Nadia, Advisory editor, Nguyen, Ngoc Thanh, Advisory editor, Wang, Jun, Advisory editor, and Latifi, Shahram, editor

Published
2016
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