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IEEE International Conference on systems, Man and Cybernetics

作者： Keiko Sato Hironori Takimoto Yasue Mitsukura Faculty of Engineering Kagawa University Kagawa JAPAN Faculty of Computer Science and Systems Engineering Okayama Prefectural University Okayama JAPAN Faculty of Science and Technology Keio University Kanagawa JAPAN

ISBN: (纸本)9781479986989

This study aimed to compare color-naming characteristics of color-vision deficient (CVD) observers with those of normal trichromat (NT) observers and investigate color sensation. This experiment used 68 color stimuli at three different luminance levels. In the color-naming task, five CVD and five NT subjects selected one color category among 11 basic color terms, and an unknown category. In the evaluation task for color sensation, they evaluated color impression using six adjectives. We used the multidimensional scaling method to construct color categorization space, and applied the factor analysis to compare color sensation of the CVD subjects with those of the NT subjects. As the results, we found that the green and blue categories of the CVD subjects were expanded more than those of NT the subjects at all luminance levels. Moreover, with the activity evaluation for the pink or purple categories, there was difference between the NT and CVD subjects, although the color categorization behaviors of the CVD subjects were similar to those of the NT subjects.

关键词： Image color analysis Color Observers Monitoring Yttrium Electronic mail

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An estimation method of pixel value distributions in consideration of conservation of energy

IEEJ Transactions on Electronics, Information and Systems

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IEEJ Transactions on Electronics, Information and systems 2015年第5期135卷 545-552页

作者： Yamauchi, Hitoshi Ozaki, Koichi Sato, Yoichiro Fukuta, Tadao Obunai, Kiyotaka Faculty of Computer Sciense and Systems Engineering Okayama Prefectural University 111 Kuboki Soja-shi Okayama719-1197 Japan

Many interpolation methods have been proposed and used for resizing images or achieving higher resolution images. In this paper, a new interpolation method is proposed. In this method, we consider a pixel value to be image energy in local region. A surface integral of pixel values is defined by a rectangle determined with image origin and a coordinates. This integration can be calculated from the pixel value of the coordinates and integrations of the nearest 3 coordinates. The proposed method is based on this definition. The distribution of the integration of pixel values inside local region are interpolated by B-spline surface with control points at the corners of the region. Therefore, image energy in local region is conserved. And, any pixel value inside the local region can be calculated by partial differentiation of the interpolate surface. Experimental results shows that precisely resized image is achieved by the proposed than by conventional methods. © 2015 The Institute of Electrical Engineers of Japan.

关键词： Interpolation

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Development of an expressible pupil response interface using hemispherical displays

Development of an expressible pupil response interface using...

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IEEE International Workshop on Robot and Human Communication (ROMAN)

作者： Yoshihiro Sejima Yoichiro Sato Tomio Watanabe Faculty of Computer Science and System Engineering Okayama Prefectural University Soja-shi Okayama Japan

We have analyzed the entrainment between a speaker's speech and a listener's nodding in face-to-face communication, and developed iRT (InterRobot Technology) to generate a variety of communicative actions and movements such as nodding and body movements by using a speech input based on the entrainment analysis. In this study, to conduct basic research for realizing smooth communication during embodied interactions between humans and robots, we focus on the pupil response, which is related to human emotions during such interactions. We analyze the pupil response in human face-to-face communication by using an embodied communication system with a line-of-sight measurement device. On the basis of this analysis, using hemispherical displays, we develop an expressible pupil response interface in which the iRT is applied to enhance embodied interaction between humans and robots. This system enables expression of the pupil response by using only speech input. In addition, the effectiveness of the developed system is demonstrated experimentally.

关键词： Speech Robots Atmospheric measurements Particle measurements Communication systems Focusing computer science

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Empirical Analysis of Change-Proneness in Methods Having Local Variables with Long Names and Comments

Empirical Analysis of Change-Proneness in Methods Having Loc...

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International Symposium on Empirical Software engineering and Measurement, ESEM

作者： Hirohisa Aman Sousuke Amasaki Takashi Sasaki Minoru Kawahara Center for Information Technology Ehime University Matsuyama Japan Faculty of Computer Science and Systems Engineering Okayama Prefectural University Soja Japan

This paper focuses on the local variable names and comments that are major artifacts reflecting the programmer's preference. It conducts an empirical analysis on the usefulness of those artifacts in assessing the software quality from the perspective of change-proneness in Java methods developed in six popular open source software products. The empirical results show: (1) a method having a longer named local variable is more change-prone, and (2) the presence of comments inside the method body strengthens the suspicions to be modified after the release. The above artifacts are worthy to find methods which can survive unscathed after the release.

关键词： Java Encoding Standards Focusing Programming Software Data collection

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Taking the English Exam for the "Can a Robot Get into the university of Tokyo?" Project

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NTT Technical Review 2015年第7期13卷

作者： Higashinaka, Ryuichiro Sugiyama, Hiroaki Isozaki, Hideki Kikui, Genichiro Dohsaka, Kohji Taira, Hirotoshi Minami, Yasuhiro Interaction Research Group Innovative Communication Laboratory NTT Communication Science Laboratories Japan Department of Systems Engineering Okayama Prefectural University Japan Department of Computer Science and Systems Engineering Okayama Prefectural University Japan Department of Electronics and Information Systems Akita Prefectural University Japan Faculty of Information Science and Technology Osaka Institute of Technology Japan Department of Information Systems Fundamentals Graduate School of Information Systems University of Electro-Communications Japan

NTT and its research partners are participating in the "Can a robot get into the university of Tokyo?" project run by the National Institute of Informatics, which involves tackling English exams. The artificial intelligence system we developed took a mock test in 2014 and achieved a better-than-human-average score for the first time. This was a notable achievement since English exams require English knowledge and also common sense knowledge that humans take for granted but that computers do not necessarily possess. In this article, we describe how our artificial intelligence system takes on English exams. © 2015 Nippon Telegraph and Telephone Corp.. All rights reserved.

关键词： Natural language processing systems

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On Controllability and Observability of an n-Link Planar Robot with a Single Actuator and a Single Encoder Having Different Configurations

On Controllability and Observability of an n-Link Planar Rob...

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IEEE Annual Conference on Decision and Control

作者： Yannian Liu Xin Xin Biomedical Engineering Laboratory Okayama University 1-1-1 Tsushima-naka Kita-ku Okayama-shi Okayama 700-8530 Japan Faculty of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Soja Okayama 719-1197 Japan

ISBN: (纸本)9781479978878

This paper concerns an n-link revolute planar robot with all the links moving in the same vertical plane and having a single actuator. An encoder attached to the actuator measures the joint angle where it is located. The linear controllability and observability of the robot around the upright equilibrium point (UEP), where all the links are in the upright position, are investigated. First, we present a simple test of the linear controllability and observability. Second, along with new properties of the mechanical parameters in the motion equation of the robot, we prove that the robot is linearly controllable and observable at the UEP, when the first or last joint is active (actuated) and the corresponding joint angle is measured, whatever the values of its mechanical parameters. The assumption of each link consisting of a massless rod with a point mass at its end in the previous studies is not needed in this paper. Moreover, the relationship between the controllability and strong structural controllability at the UEP of the robot with the last active joint is clarified.

关键词： Controllability Actuators Observability Modeling Transmission line matrix methods Robot kinematics

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Cosmic ray intensity variations in the 24th solar cycle observed by LAAS experiments 34

Cosmic ray intensity variations in the 24th solar cycle obse...

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34th International Cosmic Ray Conference, ICRC 2015

作者： Wada, Naoki Iyonoy, Atsushi Matsumoto, Hiroki Okei, Kazuhide Tsuji, Shuhei Ohara, Soji Ochi, Nobuaki Takahashi, Nobusuke Nakatsuka, Takao Yamamoto, Isao Yamamot, Saya Graduate School of Science Okayama University of Science 1-1 Ridai-cho Kita-ku Okayama-city Okayama700-0005 Japan Dept. of Fundamental Science Faculty of Science Okayama University of Science 1-1 Ridai-cho Kita-ku Okayama-city Okayama700-0005 Japan Kawasaki Medical School 577 Matsushima Kurashiki-cityOkayama701-0192 Japan Department of Informatics Naragakuen University Ikomagun-Nara6368503 Japan Faculty of Business Administration Toyo University 5-28-20 Hakusan Bunkyo-ku Tokyo112-8606 Japan Department of Advanced Physics Faculty of Science and Technology Hirosaki University 1 Bunkyo-cho Hirosaki-shi Aomori-ken036-8560 Japan Okayama Shoka University 2-10-1Tsushima Kyomachi Kita-ku Okayama-cityOkayama700-8601 Japan Department of Information and Computer Engineering Faculty of Engineering Okayama University of Science 1-1 Ridai-cho Kita-ku Okayama-city Okayama700-0005 Japan TOSHIBA MEMORY SYSTEMS Co. Ltd. Japan

In Large Area Air Shower experiments, one of EAS arrays is deployed on the second floor of four stories building in the campus of okayama university of science to limit the zenith angle acceptance of muon detection. This system provide EAS muon intensities from zenith solid angles. To compare these intensities with solar activities such as flares, CME and magneticstorms, LAAS data have been analyzed. Faster data acquisition with Ha/CaK solar telescope have also been carried out. In this presentation, cosmic ray variations for four years since 2011 are going to be reported as well as fast image data.

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A Nursing Communication Education Support System with the Function of Reflection

A Nursing Communication Education Support System with the Fu...

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IEEE/SICE International Symposium on System Integration

作者： Mayo Yamamoto Noriko Takabayashi Tomio Watanabe Yutaka Ishii Graduate School of Systems Engineering Okayama Prefectural University Faculty of Health and Welfare Science Okayama Prefectural University Faculty of Computer Science and Systems Engineering Okayama Prefectural University

ISBN: (纸本)9781467372435

Nursing students need to learn and understand how to communicate through experience. In nursing communication, reflection skills like as looking back their experience are very important. So far we have developed a nursing communication education support system via embodied avatars, however this system doesn't have a function to reflect learners' role-playing by themselves. In this paper, we focus on the importance of reflection in nursing education, and examine to improve the system, and develop the function of reflection in a nursing communication education support system so as to improve more effective support nursing communication. The reflection function would help nursing students to learn their communications skills by the feedback of their role-playing.

关键词： Medical services Education Avatars Switches computers Delays Fellows

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Evaluation of a video communication system with Speech-Driven embodied entrainment audience characters with Partner's Face 14

Evaluation of a video communication system with Speech-Drive...

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2nd International Conference on Human-Agent Interaction, HAI 2014

作者： Ishii, Yutaka Watanabe, Tomio Faculty of Computer Science and Systems Engineering Okayama Prefectural University 111 Kuboki Soja Okayama Japan

ISBN: (纸本)9781450330350

We previously proposed an embodied video communication system called E-VChat, in which a computer-generated (CG) avatar is superimposed on the other talker's video image in a face-to-face scene, so that they can better comprehend their mutual interactions during remote communication. In this study, an advanced video communication system that includes audience characters showing a partner's face is proposed. This system provides a more interactive space that makes it easy to communicate by clearly distinguishing the simple audience characters from the functional substitutes of the partner. A communication experiment is performed to confirm the effectiveness of the system for 12 pairs of 24 talkers.

关键词： Decision making

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Multiple-port SIW power divider utilizing cascade-connected crisscross directional couplers

Multiple-port SIW power divider utilizing cascade-connected ...

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German Microwave Conference

作者： Koji Takahashi Tadashi Kawai Mitsuyoshi Kishihara Isao Ohta Akira Enokihara Graduate School of Engineering University of Hyogo Himeji-shi Hyogo Japan Faculty of Computer Science and System Engineering Okayama Prefectural University Soja-shi Okayama Japan University of Hyogo Kobe-shi Hyogo Japan

This paper presents a compact multiple-port power divider with a Substrate Integrated Waveguide (SIW) structure. The proposed divider consists of several cascaded-connected directional couplers inserted a number of metallic posts within the SIW with suitable coupling coefficients and a right-angled corner, and realizes an equal power division in a same direction by using honeycomb structures which consist of a large number of small-size holes vertically installed between the directional couplers as phase shifters. By optimizing the circuit dimensions of directional couplers and the right-angle corner at a operating frequency of 17GHz based on the H-plane planar circuit approach [1], a good performance of an equal power division within ±0.3dB unbalance and 20dB return loss can be obtained with a relative bandwidth of about 2%. The 5-way SIW power divider which the circuit patter is decided by electromagnetic simulations is fabricated on a dielectric substrate to verify the design procedure. Measurement results of the fabricated divider are nearly agreement with the simulation results.

关键词： Power dividers Directional couplers Scattering parameters Couplings Frequency conversion Bandwidth

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