Editor's Choice


JACIII Editor’s Choice 2015 (Vol.19)

Vol.19 No.2 pp. 269-276 (March 2015)

Modeling of High Temperature Gas Flow 3D Distribution in BF Throat Based on the Computational Fluid Dynamics

Jian Qi An, Kai Peng, Wei Hua Cao, and Min Wu

Abstract: This paper aims at building a Computational Fluid Dynamics (CFD) model which can describe the gas flow three dimensions (3D) distribution in blast furnace (BF) throat. Firstly, the boundary conditions are obtained by rebuilding central gas flow shape in BF based on computer graphics. Secondly, the CFD model is built based on turbulent model by analyzing ...<more>

Vol.19 No.2 pp. 277-283 (March 2015)

Ground Target Tracking and Collision Avoidance for UAV Based Guidance Vector Field

Zhihong Peng and Zhimin Chen

Abstract: This paper focuses on ground-moving target tracking of an unmanned aerial vehicle (UAV) in the presence of static obstacles and moving threat sources. Due to a UAV is restricted by airspace restrictions and measurement limitations during flight, we derive a dynamic path planning strategy by generating guidance vector filed combined Lyapunov vector field with...<more>

JACIII Editor’s Choice 2014 (Vol.18)

Vol.18 No.3 pp. 320-323 (May 2014)

The Usage and Behavior Patterns of Mobile BitTorrent Clients

Péter Ekler and Kristóf Csorba

Abstract: With the many changes in mobile phone use, it is now common for users to connect to the Internet and share social and multimedia data, and peer-to-peer technology remains one of the most efficient solutions to content sharing. We analysed the lifecycle of content shared using the BitTorrent network, focusing on torrents retrieved by mobile phone clients usin...<more>

JACIII Editor’s Choice 2013 (Vol.17)

Vol.17 No.6 pp. 805-812 (November 2013)

Design of Compensator for Input Dead Zone of Actuator Nonlinearities

Weijie Chen, Jundong Wu, and Jinhua She

Abstract: This paper considers the problem of tracking a periodic signal for a plant with an input dead zone in the actuator. The nonlinearity greatly degrades control performance. To solve this problem, we incorporate an equivalent-input-disturbance (EID) compensator into a repetitive control system (RCS), resulting in a new system configuration. We combine the linea...<more>

Vol.17 No.6 pp. 813-817 (November 2013)

Step Output Tracking Controller Design for Networked Control Systems

Zhong-Hua Pang, Guo-Ping Liu, and Donghua Zhou

Abstract: This paper is concerned with the step output tracking controller design problem for networked discretetime linear systems. The communication constraints such as network-induced delay, packet disorder, and packet dropout are considered, which are treated as the round-trip time (RTT) delay with an upper bound. An event-driven networked predictive control schem...<more>

Vol.17 No.6 pp. 851-861 (November 2013)

Modeling and Simulation of Road Traffic Behavior: Artificial Drivers with Personality and Emotions

George Leu, Neville J. Curtis, and Hussein Abbass

Abstract: This study uses an artificially generated, multi-agent traffic environment to bring to attention the behavioral aspects involved in the performance of road traffic networks. Artificial drivers with behavioral capabilities are used to understand how collective human behavior affects traffic performance. These drivers are also used to find optimal behaviors in...<more>

Vol.17 No.4 pp. 573-580 (July 2013)

Spherical Visualization of Image Data with Clustering

Yuichi Yaguchi and Ryuichi Oka

Abstract: This paper proposes to aid the search for images by visualization of the image data on a spherical surface. Many photographs were lost in the Tohoku tsunami, and those that were eventually found are now being scanned. However, the owners of the lost photographs are finding it difficult to search for their images within a large set of scanned images that cont...<more>

JRM Editor’s Choice 2013 (Vol.24)

Vol.24 No.6 pp. 939-948 (December 2012)

A Symbolic Construction Work Flow Based on State Transition Analysis Using Simplified Primitive Static States

Mitsuhiro Kamezaki, Hiroyasu Iwata, and Shigeki Sugano

Abstract: In this paper, a quantitative analysis method for a comprehensive work flow in construction work for identifying work states in more detail is proposed. The proposed method is based on analyzing state transitions of simplified primitive static states (s-PSS), which consist of four symbolic work states defined by using the on-off state of lever operations and...<more>

Vol.24 No.4 pp. 629-641 (August 2012)

Design, Simulation, Fabrication and Testing of a Bio-Inspired Amphibious Robot with Multiple Modes of Mobility

Alexander S. Boxerbaum, Matthew A. Klein, Jeffery E. Kline,
Stuart C. Burgess, Roger D. Quinn, Richard Harkins,
and Ravi Vaidyanathan

Abstract: Surf-zone environments represent an extreme challenges to robot operation. A robot that autonomously navigates rocky terrain, constantly changing underwater currents, hard-packed moist sand and loose dry sand characterizing this environment, would have significant utility in a range of defence and civilian missions. The study of animal locomotion mechanisms ...<more>

Vol.24 No.4 pp. 642-648 (August 2012)

A Bio-Inspired Adaptive Perching Mechanism for Unmanned Aerial Vehicles

Wanchao Chi, Kin Huat Low, Kay Hiang Hoon,
Johnson Tang, and Tiauw Hiong Go

Abstract: Endurance is the critical problem that most Unmanned Aerial Vehicles (UAVs) will definitely encounter. By learning frombirds in nature that perch to reserve energy, however, this problem could probably be solved. The purposes of this paper are to gain inspiration from bird’s perching in a more systematic way, to further propose a design of bio-inspired...<more>

Vol.24 No.1 pp. 261-267 (February 2012)

Multi-Material Anisotropic Friction Wheels for Omnidirectional Ground Vehicles

Genya Ishigami, Jim Overholt, and Karl Iagnemma

Abstract: In this paper, a novel wheel design utilizing the anisotropic friction property for omnidirectional vehicles is presented. The proposed wheel has a series of bendable “nodes” on its circumference, each of which is made of two materials with differing friction properties: one material exhibits high friction, and the other exhibits low friction. Th...<more>

JACIII Editor’s Choice 2012 (Vol.16)

Vol.16 No.2 pp. 349-357 (March 2012)

Spatial Memory for Augmented Personal Working Environments

Young Eun Song, Peter Kovacs, Mihoko Niitsuma, and Hideki Hashimoto

Abstract: Augmented Personal Working Environments (APWEs) are 3D environments in which the physical surroundings of the user are overlaid with representations of a virtual reality. With the rapid technological evolution of personal informatics devices as well as a growing demand for more comfortable and efficient working environments, the partial virtualization of res...<more>

Vol.16 No.1 pp. 48-54 (January 2012)

Auto-Selection of DPC Codes from Discharge Summaries by Text Mining in Several Hospitals and Analysis of Differences in Discharge Summaries

Shunsuke Doi, Takahiro Suzuki, Gen Shimada, Mitsuhiro Takasaki, Shinsuke Fujita, Toshiyo Tamura, and Katsuhiko Takabayashi

Abstract: Recently, Electronic Medical Record (EMR) systems have become popular in Japan, and numerous discharge summaries are being stored electronically, although they have not yet been reutilized. We performed text mining by using the term frequencyinverse document frequency method along with a morphological analysis of the discharge summaries from 3 hospitals (the...<more>

JACIII Editor’s Choice 2011 (Vol.15)

Vol.15 No.9 pp. 1230-1240 (November 2011)

Document Analysis System Based on Awareness Learning

Jie Ji, Rung-Ching Chen, and Qiangfu Zhao

Abstract: The rapid growth of the Internet has naturally encouraged users to handle and process documents as online information rather than hard-copies, e.g., on paper. Dealing with large amounts of information efficiently requires classifying data into meaningful categories. Many machine-learning-based algorithms have been proposed for document classification, yieldi...<more>

Vol.15 No.8 pp. 972-979 (October 2011)

Learning Strategy in Time-to-Contact Estimation of Falling Objects

Hiroyuki Kambara, Keiichi Ohishi, and Yasuharu Koike

Abstract: The ability to estimate the time that remains before contact (Time-To-Contact or TTC) of a falling object is critical in daily life. In this paper, we investigated how the Central Nervous System (CNS) becomes able to estimate the TTC of a ball falling at various accelerations. According to experiments on the human ability to catch a ball falling at various a...<more>

Vol.15 No.8 pp. 1030-1038 (October 2011)

Kicking Motion Imitation of Inverted-Pendulum Mobile Robot and Development of Body Mapping from Human Demonstrator

Sataya Takahashi, Yasutake Takahashi, Yoichiro Maeda, and Takayuki Nakamura

Abstract: This paper proposes a new method for learning the dynamic motion of an inverted-pendulum mobile robot from the observation of a human player’s demonstration. First, an inverted-pendulum mobile robot with upper and lower body links observes the human demonstration with a camera and extracts the human region in images. Second, the robot maps the region t...<more>

Vol.15 No.8 pp. 1140-1148 (October 2011)

Multi-Objective Scheduling for Space Science Missions

Mark D. Johnston and Mark E. Giuliano

Abstract: We have developed an architecture called MUSE (Multi-User Scheduling Environment) to enable the integration of multi-objective evolutionary algorithms with existing domain planning and scheduling tools. Our approach is intended to make it possible to reuse existing software, while obtaining the advantages of multi-objective optimization algorithms. This appr...<more>

Vol.15 No.6 pp. 662-670 (August 2011)

Feature Extraction with Space Folding Model and its Application to Machine Learning

Minh Tuan Pham, Tomohiro Yoshikawa, Takeshi Furuhashi, and Kanta Tachibana

Abstract: Feature extraction provides an essential element in most machine learning methods, including supervised learning with neural networks. Linearly inseparable data distributions are often non-linearly transformed in some way to make them more linearly separable in the feature space. In this paper, we propose a method of feature extraction with a space folding m...<more>

Vol.15 No.5 pp. 534-544 (July 2011)

Dual-Hierarchical Control Mechanism of Interpersonal Embodied Interactions in Cooperative Walking

Takeshi Muto and Yoshihiro Miyake

Abstract: Interpersonal embodied interactions play a significant role as emergent functions in human development and rehabilitation. However, a framework for applying embodied interactions to “human interface systems” to support such emergent functions has not yet been suggested because the details of the motorcontrol mechanism have not yet been clarified....<more>

Vol.15 No.3 pp. 264-287 (May 2011)

Inference for Nonlinear Mapping with Sparse Fuzzy Rules Based on Multi-Level Interpolation

Kiyohiko Uehara, Shun Sato, and Kaoru Hirota

Abstract: An inference method is proposed for sparse fuzzy rules on the basis of interpolations at a number of points determined by α-cuts of given facts. The proposed method can perform nonlinear mapping even with sparse rule bases when each given fact activates a number of fuzzy rules which represent nonlinear relations. The operations for the nonlinear mappin...<more>

Vol.15 No.3 pp. 322-328 (May 2011)

Semantically Enhanced Code Clone Refinement Algorithm Based on Analysis of Multiple Detection Reports

Ricardo Sotolongo, Fangyan Dong, and Kaoru Hirota

Abstract: An algorithm based on semantic analysis of multiple detection tools’ reports using WordNet is proposed oriented on the refinement of code clones. It parses different detection tools’ reports looking for new clone specifications, and refines the location of existing ones using semantic information contained in source code. It is applied to a real ...<more>

Vol.15 No.1 pp. 56-62 (January 2011)

Risk Analysis of Portfolios Under Uncertainty: Minimizing Average Rates of Falling

Yuji Yoshida

Abstract: A portfolio model to minimize the risk of falling under uncertainty is discussed. The risk of falling is represented by the value-at-risk of rate of return. Introducing the perception-based extension of the average value-at-risk, this paper formulates a portfolio problem to minimize the risk of falling with fuzzy random variables. In the proposed model, rand...<more>

Vol.15 No.1 pp. 95-101 (January 2011)

Semi-Supervised Fuzzy c-Means Algorithm by Revising Dissimilarity Between Data

Yuchi Kanzawa, Yasunori Endo, and Sadaaki Miyamoto

Abstract: We propose two approaches for semi-supervised FCM with soft pairwise constraints. One applies NERFCM to the revised dissimilarity matrix by pairwise constraints. The other applies K-FCM with a dissimilarity-based kernel function, revising the dissimilarity matrix based on whether data in the same cluster may be close to each other or the data in the d...<more>

JRM Editor’s Choice 2011 (Vol.23)

Vol.23 No.6 pp. 939-950 (December 2011)

Development of Production Robot System that can Assemble Products with Cable and Connector

Rintaro Haraguchi, Yukiyasu Domae, Koji Shiratsuchi,
Yasuo Kitaaki, Haruhisa Okuda, Akio Noda,
Kazuhiko Sumi, Takayuki Matsuno, Shun’ichi Kaneko,
and Toshio Fukuda

Abstract: To realize automatic robot-based electrical and electronic product assembly, we developed the handling of cables with connectors - flexible goods which are an obstacle to automation. The element technologies we developed include 3D vision sensing for cable extraction, force control for connector insertion, error recovery for improving system stability, and t...<more>

Vol.23 No.6 pp. 1041-1054 (December 2011)

HELIOS Tracked Robot Team: Mobile RT System for Special Urban Search and Rescue Operations

Ryuichi Hodoshima, Michele Guarnieri,
Ryo Kurazume, Hiroshi Masuda, Takao Inoh,
Paulo Debenest, Edwardo F. Fukushima,
and Shigeo Hirose

Abstract: Fire brigades and other specialized agencies are often required to undertake extremely dangerous search and rescue operations in which it is important first to verify the safety of the environment and then to obtain clear remote images of the inside of buildings and underground areas. Several studies have addressed the possibility of using robotic tools to m...<more>

Vol.23 No.5 pp. 665-675 (October 2011)

Creating Attraction for Technical Education Material and its Educational Benefit (Development of Robotic Education Material Characterized by 3D CAD/CAM and Compact Stereo Vision)

Takeshi Morishita

Abstract: This paper describes an attractive technical education program and material for engineering students that consists of 3D CAD/CAM technology, CAD/CAM circuit board manufacture, an image information processing system, stereo vision technology and control experiments involving a simple and compact robot equipped with a stereo vision system. In addition, this ma...<more>

Vol.23 No.5 pp. 811-821 (October 2011)

Enhancing Student Engineering, Personal, and Interpersonal Skills Through Yumekobo Projects

Kosei Demura, Takumi Sakamoto, Yasuki Asano,
and Masakatsu Matsuishi

Abstract: The Kanazawa Institute of Technology (KIT) established Yumekobo (the Factory for Dreams and Ideas) in 1993 to give students a place to create things freely and safely in extracurricular activities. Yumekobo has come to impact strongly on domestic and overseas universities promoting educational reform. The Yumekobo project supporting creative student group ac...<more>

Vol.23 No.5 pp. 822-829 (October 2011)

Educating Robot Development in a University Laboratory from First Year – A Trial of a Robotics Club Under Observation at a Laboratory –

Masaaki Kumagai

Abstract: A special trial university course by the author in robotics and mechatronics enables students hoping to explore robot development to use the author’s laboratory, equipment, machines, and consumable supplies such as screws, aluminum materials, and electrical parts freely in the hope that these students start developing mechatronics devices in their firs...<more>

Vol.23 No.5 pp. 830-839 (October 2011)

Education Method of Robotics with Jigsaw Method by Using RT Component

Yasuo Hayashibara, Shinya Kotosaka, Naomi Miyake,
and Tomomasa Sato

Abstract: This paper introduces an educationmethod of robotics with the jigsaw method by using the RT component. Robotics contains many areas of technologies, such as mechanism, electronics, and computer programming. Therefore, it may be a desirable academic discipline for studying current complex technologies. For studying robotics efficiently, we propose an educatio...<more>

Vol.23 No.4 pp. 466-474 (August 2011)

Range Estimation Technique Using Received Signal Strength Indication on Low Frequency Waves

Kenichi Ohara, Yuji Abe, Tomohito Takubo,
Yasushi Mae, Tamio Tanikawa, and Tatsuo Arai

Abstract: Recently, with the downsizing of computers and the development of wireless communication advances, sensor networks are being widely studied. However, it is necessary to know the location of each node, in order to apply sensor data. Many researchers have tried to find a good approach to position estimation in indoor environment. In our study, we focus on posi...<more>

Vol.23 No.4 pp. 484-493 (August 2011)

Visual Marker System for Autonomous Object Handling by Assistive Robotic Arm

Hideyuki Tanaka, Tetsuo Tomizawa, Yasushi Sumi,
Jae Hoon Lee, Hyun Min Do, Bong Keun Kim,
Tamio Tanikawa, Hiromu Onda, and Kohtaro Ohba

Abstract: The environment structuring concept has been used to design and develop a visual marker system for automating a robotic arm that assists those with upperlimb problems to lead independent lives. Confirmation experiments demonstrate the feasibility of our system in meeting different practical performance requirements. Combining semiautonomous control, simple v...<more>

Vol.23 No.3 pp. 350-359 (June 2011)

Software Deployment Infrastructure for Component Based RT-Systems

Noriaki Ando, Shinji Kurihara, Geoffrey Biggs,
Takeshi Sakamoto, Hiroyuki Nakamoto,
and Tetsuo Kotoku

Abstract: In component-based Robotic Technology (RT) systems, launching the system involves installing component binary files to the target computers, instantiation of components, and establishing connections between components. In order to operate RT systems with many CPU nodes effectively, the deployment features provided by the middleware are important. Deployment ...<more>

Vol.23 No.1 pp. 13-18 (February 2011)

Automatic Cell Cutting by High-Precision Microfluidic Control

Akihiko Ichikawa, Tamio Tanikawa, Satoshi Akagi,
and Kohtaro Ohba

Abstract: We have developed automated cell cutting by highprecision microfluidic control using a high-response and high-precision syringe pump. A microfluidic chip containing 2 orthogonal microchannels was used for cutting animal cells softened by cytochalasin and aspirated and fixed in 1 microchannel, then a high-velocity microchannel flow was generated from another ...<more>

JRM Editor’s Choice 2010 (Vol.22)

Vol.22 No.5 pp. 623-630 (October 2010)

2DOF Magnetically Driven Microtool for Soft Peeling of Zona Pellucida

Yoko Yamanishi, Tomohiro Kawahara, Tomohiro Iyanagi,
Masaya Hagiwara, Takehito Mizunuma, Naoki Inomata,
Shogo Kudo, and Fumihito Arai

Abstract: We automated removal of the swine oocyte zona pellucida using a 2DOF magnetically driven microtool (MMT) on a microfluidic chip. Multiple oocytes can be manipulated simultaneously highly stably, providing strong advantages over conventional manual manipulation using pipetting. We propose automating this process by activating a soft polymer microtool on a dis...<more>

Vol.22 No.5 pp. 644-650 (October 2010)

Nanoliters Discharge/Suction by Thermoresponsive Polymer Actuated Probe and Applied for Single Cell Manipulation

Masaru Takeuchi, Masahiro Nakajima, Masaru Kojima,
and Toshio Fukuda

Abstract: We propose the Thermoresponsive Polymer Actuated (TPA) probe which uses thermoresponsive polymer poly (N-isopropylacrylamide) (PNIPAAm) volume change as an actuator. The proposed probe is applicable to single cell analysis, especially single cell manipulation. The TPA probe can discharge and suck solution in several nanoliters (nl) using the volume change. N...<more>

Vol.22 No.4 pp. 439-446 (August 2010)

Electric Wheelchair Controlled by Human Body Motion -Classification of Body Motion and Improvement of Control Method-

Sho Yokota, Hiroshi Hashimoto, Yasuhiro Ohyama,
and Jinhua She

Abstract: This paper classifies human body movements when an electric wheelchair was controlled using a Human Body Motion Interface (HBMI) by a Self-Organizing Map (SOM) and proposes control based on classification results. The Human Body Motion Interface (HBMI) uses body movement following voluntary motion. This study focuses on electric wheelchair control as an appl...<more>

Vol.22 No.4 pp. 506-513 (August 2010)

Automatic Counting Robot Development Supporting Qualitative Asbestos Analysis -Asbestos, Air Bubbles, and Particles Classification Using Machine Learning-

Kenichi Ishizu, Hiroshi Takemura, Kuniaki Kawabata,
Hajime Asama, Taketoshi Mishima,
and Hiroshi Mizoguchi

Abstract: Asbestos, particle, and air bubble counting generally supports qualitative asbestos analysis, using such procedures as dispersion staining. Operators conventionally check and count asbestos fibers visually using a microscope - a difficult, time-consuming process. The microscopic observation robot we are automating to support qualitative asbestos analysis ima...<more>

Vol.22 No.4 pp. 514-525 (August 2010)

Adaptive Division-of-Labor Control Algorithm for Multi-Robot Systems

Yusuke Ikemoto, Toru Miura, and Hajime Asama

Abstract: An advanced function for multi-robot systems is the division of labor. There are some studies proposing a multi-agent reinforcement learning method for a division of labor. However, it often requires much time to converge. Many studies focusing on division-of-labor control inspired biological phenomenon have been reported. In those methods, whether heterogen...<more>

Vol.22 No.3 pp. 348-355 (June 2010)

Development of a Robot Balanced on a Ball - First Report, Implementation of the Robot and Basic Control -

Masaaki Kumagai and Takaya Ochiai

Abstract: This paper proposes the implementation and control scheme of a robot balanced on a ball. Unlike a twowheeled inverted pendulum, such as the Segway Human Transporter, an inverted pendulum using a ball moves in any direction without changing orientation, enabling isotropic movement and stabilization. The robot on the ball can be used in place of the twowheeled...<more>

Vol.22 No.3 pp. 371-379 (June 2010)

Design and Fabrication of All-in-One Unified Microfluidic Chip for Automation of Embryonic Cell Manipulation

Yoko Yamanishi, Shinya Sakuma, Tomohiro Iyanagi,
Fumihito Arai, Tatsuo Arai, Akiyuki Hasegawa,
Tamio Tanikawa, Akihiko Ichikawa, Osamu Satoh,
Akihiro Nakayama, Hiroshi Aso, Mitsuhiro Goto,
Seiya Takahashi, and Kazutsugu Matsukawa

Abstract: We developed a microfluidic chip for automation of cloning process based on a new protocol. The protocol is based on removal of the zona pellucida outside the chip which contributes to simplify on-chip automation of cloning. Then, the oocytes are put into the chip. The design concept of the chip is summarized as follows. (1) The oocyte is cut into two parts....<more>

Vol.22 No.2 pp. 179-188 (April 2010)

Development of a Pneumatic Surgical Manipulator IBIS IV

Kotaro Tadano, Kenji Kawashima, Kazuyuki Kojima,
and Naofumi Tanaka

Abstract: In teleoperated, minimally invasive surgery systems, the measurement and conveyance of a sense of force to the operator is problematic. In order to carry out safer and more precise operations using robotic manipulators, force measurement and operator feedback are very important factors. We previously proposed a pneumatic surgical manipulator that is capable ...<more>

Vol.22 No.2 pp. 204-211 (April 2010)

Development of Dismantling Robot for Ceiling Boards - Human-Robot Cooperative System and System Design of the Robot -

Satoshi Ashizawa, Yusuke Kuromiya, Toshiya Watanabe,
Takeo Oomichi, and Junichiro Maeda

Abstract: We have developed a dismantling robot for ceiling boards. The system design of the dismantling robot actually includes a cooperative system between humans and robots. It has a hierarchical system of the independent robot. Indeed, we carried out the dismantlement of ceiling boards by a new method of cutting ceiling boards, and verified the effectiveness of th...<more>

Vol.22 No.1 pp. 65-75 (February 2010)

Automatic ROI Detection and Evaluation in Video Sequences Based on Human Interest

Mohammad Rokunuzzaman, Kosuke Sekiyama, and Toshio Fukuda

Abstract: This paper describes an approach for automatic detection and evaluation of Region of Interest (ROI) based on human psychology of interest and relevance. It is very challenging to determine the cognitive boundary of the scene in real time due to its complexity in decision making. We have proposed a novel method to solve this problem by using human cognitive p...<more>

Vol.22 No.1 pp. 76-81 (February 2010)

Facial-Expression-Based Arousal Evaluation by NST

Hirotoshi Asano and Hideto Ide

Abstract: Fatigue accumulation and poor attention could cause accidents in situations such as flight control, and automobile operation. This has contributed to international interest in intelligent transport system (ITS) research and development. We evaluated human sleepiness arousal based on facial thermal image analysis, in doing so based on nasal skin temperature f...<more>

JACIII Editor’s Choice 2010 (Vol.14)

Vol.14 No.7 pp. 813-824 (November 2010)

Robot Group Adaptation Gestures Based on Utterance Content and Social Position

Daisuke Katagami, Ken Ogawa, and Katsumi Nitta

Abstract: We suggest adaptive gestures for robots adapting to groups based on utterance situations and social position and study the differences in type and number of teaching gestures based on the difference in groups in equivalence utterance. Gesture data is collected in which group members are directly taught to a robot through utterance situations and social posit...<more>

Vol.14 No.6 pp. 624-630 (September 2010)

Applying Naive Bayes Classifier to Document Clustering

Jie Ji and Qiangfu Zhao

Abstract: Document clustering partitions sets of unlabeled documents so that documents in clusters share common concepts. A Naive Bayes Classifier (BC) is a simple probabilistic classifier based on applying Bayes’ theorem with strong (naive) independence assumptions. BC requires a small amount of training data to estimate parameters required for classification. ...<more>

Vol.14 No.5 pp. 512-522 (July 2010)

Integrating Process and Work Breakdown Structure with Design Structure Matrix

Jonathan Lee, Whan-Yo Deng, Wen-Tin Lee, Shin-Jie Lee, Kuo-Hsun Hsu, and Shang-Pin Ma

Abstract: In software development, project plans document scope, cost, effort, and schedule, guide project managers, and control project execution. Developing a project plan without incorporating how an organization doing things - i.e., organizational culture - may lead to project failure. To ensure stable process performance and to benefit from organizational culture...<more>

Vol.14 No.4 pp. 402-407 (May 2010)

Learning Similarity Matrix from Constraints of Relational Neighbors

Masayuki Okabe and Seiji Yamada

Abstract: This paper describes a method of learning similarity matrix from pairwise constraints assumed used under the situation such as interactive clustering, where we can expect little user feedback. With the small number of pairwise constraints used, our method attempts to use additional constraints induced by the affinity relationship between constrained data and...<more>

Vol.14 No.2 pp. 122-127 (March 2010)

Fuzzy Visual Hull Algorithm for Three-Dimensional Shape Reconstruction of TKA Implants from X-Ray Cone-Beam Images

Syoji Kobashi, Nao Shibanuma, and Yutaka Hata

Abstract: Three-Dimensional (3-D) shape reconstruction of total knee arthroplasty (TKA) implants in vivo plays a key role to investigate implanted knee kinematics. TKA implants typically consist of metal femoral and tibial components and a polyethylene tibial insert. X-ray computed tomography (CT) causes severe metal artifacts, making the 3-D shape in reconstru...<more>

JRM Editor’s Choice 2009 (Vol.21)

Vol.21 No.6 pp. 672-679 (December 2009)

3D Object Modeling and Segmentation Using Image Edge Points in Cluttered Environments

Masahiro Tomono

Abstract: Object models are indispensable for robots to recognize objects when conducting tasks. This paper proposes a method of creating object models from images captured in real environments using a monocular camera. In our framework, an object model consists of a 3D model composed of 3D points reconstructed from image edge points and 2D models composed of image ...<more>

Vol.21 No.6 pp. 780-788 (December 2009)

An Optical Tactile Sensor Assuming Cubic Polynomial Deformation of Elastic Body

Kiyoshi Hoshino, Daisuke Mori, and Motomasa Tomida

Abstract: Assuming that the elastic body makes cubic polynomial deformation, we propose a compact three-dimensional (3D) optical tactile sensor for high-speed detection of three-axial directional force components. We constructed a 3D tactile sensor using thin, soft elastic and without pattern delineation or pigment injection such as that used in light-section mea...<more>

Vol.21 No.5 pp. 590-596 (October 2009)

Velocity and Acceleration Estimation by a Nonlinear Filter Based on Sliding Mode and Application to Control System

Takanori Emaru, Kazuo Imagawa, Yohei Hoshino, and Yukinori Kobayashi

Abstract: Proportional-integral-derivative (PID) control commonly used to operate mechanical systems has limited performance accuracy due to the influence of gravity, friction, and joint interaction caused by modeling error. Digital acceleration control is robust against modeling errors and superior to PID control, but the need for positioning, velocity, and acce...<more>

Vol.21 No.5 pp. 597-606 (October 2009)

Human Joint Motion Recognition Using Ultrasound Pulse Echo Based on Test Feature Classifier

Yoichiro Tsutsui, Takayuki Tanaka, Shun'ichi Kaneko, Yukinobu Sakata, and Maria Q. Feng

Abstract: The simultaneous joint torque and angle recognition for dynamic movement we propose using ultrasound echo and is test feature classifier is for application in human-machine systems such as wearable robots. Ultrasound emitted on the skin surface and reflected within the body is used to recognize features extracted from the echo. Features is change based ...<more>

Vol.21 No.4 pp. 443-452 (August 2009)

A Service System Adapted to Changing Environments Using “Kukanchi”

Yusuke Fukusato, Eri sato–Simokawara, Toru Yamaguchi, and Makoto Mizukawa

Abstract: Robots have been expected to coexist with people, providing them with suitable services. To provide services, robots need to recognize the environment, situation, context, and so on. Additionally, robots observe people’s movements in their daily life and ascertain the relations among their movements, the environment, and services. This information is inh...<more>

Vol.21 No.4 pp. 515-523 (August 2009)

Observation of Human Activities Based on Spatial Memory in Intelligent Space

Mihoko Niitsuma and Hideki Hashimoto

Abstract: Intelligent Space (iSpace) we propose as an intelligent environment provides information and physical services to users via intelligent agents such as mobile robots, computer devices, and digital equipment. A suitable human interface is needed to enable users to operate agents in iSpace. For this, we previously proposed spatial memory. Here, we have improv...<more>

Vol.21 No.3 pp. 324-331 (June 2009)

Parameter Setting Method for Sit-Stand Assist System Based on Human Model

Yasuhisa Hirata, Jun'ichi Higuchi, Takuro Hatsukari, and Kazuhiro Kosuge

Abstract: The simple sit-stand support we have designed consists of a handrail and height-adjustable electric bed for assisting the user to stand from sitting on the bed. The human-model-based evaluation indexes for sit-stand movement enabled us to set support parameters such as handrail position, bed height, and foot positioning stabilizing the user and reducing the ...<more>

Vol.21 No.3 pp. 342-352 (June 2009)

Trajectory Generation for Adaptive Motion by Phase Feedback - Synchronization of Multicycle Human Movement -

Takayuki Ubukata, Shinya Kotosaka, and Hideyuki Ohtaki

Abstract: Synchronous motion is one of the important ability for the co-operation work by human. The focus of our research is to develop a robust and adaptive synchronous trajectory generation method for the robot. To be able to follow the uncertain action by human co-worker, the trajectory generation method must be required adaptability to frequency and phase o...<more>

Vol.21 No.2 pp. 172-178 (April 2009)

A Study on Adaptive Arch Structure Applying Variable Geometry Truss (Mechanism of Movable Arch Roof with External Panel)

Fumihiro Inoue

Abstract: This paper describes a movable arch roof with external panels as an actual design of an adaptive structure using a VGT (Variable Geometry Truss) mechanism comprising an elementary truss structure with extendable members. This movable arch structure comprises several VGT units jointed in series and pin jointed at each end. It is a stable structure because...<more>

Vol.21 No.2 pp. 229-235 (April 2009)

On-Chip Droplet Dispensing by a Magnetically Driven Microtool

Yoko Yamanishi, Yuki Kihara, Shinya Sakuma, and Fumihito Arai

Abstract: We have investigated an active size controlled droplet generation system by using magnetically driven microtool (MMT). With a lateral motion of the MMT in microchannels, the continuous phase can be pinched off by the movement of MMT to obtain size-controlled droplets actively. With this method particle-enclosed droplet can be produced on demand to fit t...<more>

Vol.21 No.1 pp. 135-145 (February 2009)

Quantitative Evaluation of Automatic Parts Delivery in “Attentive Workbench” Supporting Workers in Cell Production

Masao Sugi, Ippei Matsumura, Yusuke Tamura,
Makoto Nikaido, Jun Ota, Tamio Arai, Kiyoshi Kotani,
Kiyoshi Takamasu, Hiromasa Suzuki, Akio Yamamoto,
Yoichi Sato, Seiichi Shin, and Fumihiko Kimura

Abstract: The attentive workbench (AWB) is a new cell production system that supports human workers physically and informationally. Here we focus on physical assembly support through parts delivery, using automatically-moving parts trays. We quantitatively evaluated processing time in actual assembly experiments employing an implemented AWB system....<more>

Vol.21 No.1 pp. 20-27 (February 2009)

Development of MRI Compatible Manipulandum for Hand and Arm Movement

Toshiyuki Aodai and Shigeki Toyama

Abstract: The paper subscribes development of Magnetic Resonance Imaging (MRI) compatible using an ultrasonic motor, to work within the limits of MRI scanner workspace and environment, dimensions involving upper-limbs biomechanics. The manipulandum consists of hand mechanism and an arm-reaching mechanism having a two-degree-freedom (2DOF) haptic interface enabli...<more>

Vol.21 No.1 pp. 74-80 (February 2009)

Stepwise Locomotion on a Deformable Surface Using Shear Displacement Produced by a Pneumatic Suction Device

Toshiaki Horie and Satoshi Konishi

Abstract: The present paper introduces a stepwise locomotion of a micro robot using the shear displacement of a deformable object by a pneumatic suction device. We consider a locomotion function of a micro robot for medical application. A medical micro robot introduced into the abdominal cavity has been investigated as an extension of endoscopic technology. A micr...<more>

JACIII Editor’s Choice 2009 (Vol.13)

Vol.13 No.6 pp. 615-623 (November 2009)

About Profit Sharing Considering Infatuate Actions

Wataru Uemura

Abstract: In reinforcement learning systems based on trial-and error, the agent, that is the subject or the system that perceives its environment and takes actions which maximize its chances of success, is rewarded when it attains the target level of learning of the learning exercise. In Profit Sharing, the reinforcement learning process is pursued for the accumu...<more>

Vol.13 No.6 pp. 649-657 (November 2009)

Information Theoretic Approach for Measuring Interaction in Multiagent Domain

Sachiyo Arai and Yoshihisa Ishigaki

Abstract: Although a large number of reinforcement learning algorithms have been proposed for the generation of cooperative behaviors, the question of how to evaluate mutual benefit or loss among them is still open. As far as we know, an emerged behavior is regarded as a cooperative behavior when embedded agents have finally achieved their global goal, regardless...<more>

Vol.13 No.4 pp. 352-359 (July 2009)

An Application of Rough Set Analysis toa Psycho-Physiological Study - Assessing the RelationBetween Psychological Scale and Immunological Biomarker

Shusaku Nomura and Yasuo Kudo

Abstract: This study aims at an application of rough set theory to illustrate the relationship between human psychological and physiological states. Recent behavioral medicine studies have revealed that various human secretory substances change according to mental states. These substances, the hormones and immune substances, show temporal increase against mental ...<more>

Vol.13 No.4 pp. 373-379 (July 2009)

Multiobjective Random Fuzzy Linear Programming Problems Based on the Possibility Maximization Model

Takashi Hasuike, Hideki Katagiri, and Hiroaki Ishii

Abstract: Two multiobjective random fuzzy programming problems considered based on the possibility maximization model using possibilistic and stochastic programming are not initially well defined due to the random variables and fuzzy numbers included. To solve them analytically, probability criteria are set for objective functions and chance constraints are intro...<more>

Vol.13 No.3 pp. 185-192 (May 2009)

Operation Planning of District Heating and Cooling Plants Considering Contract Violation Penalties

Kosuke Kato, Masatoshi Sakawa, Keiichi Ishimaru, and Satoshi Ushiro

Abstract: Urban district heating and cooling (DHC) systems operate large freezers, heat exchangers, and boilers to stably and economically supply hot and cold water, steam, etc., based on customer demand. We formulate an operation-planning problem as a nonlinear integer programming problem for an actual DHC plant. To reflect actual decision making appropriately, ...<more>

Vol.13 No.3 pp. 262-267 (May 2009)

A Normative Approach to Fuzzy Logic Reasoning Using Residual Implications

Yahachiro Tsukamoto

Abstract: Logical problems with fuzzy implications have been investigated minutely (Baczynski and Jayaram [1]). Considering some of the normative criteria to be met by generalized modus ponens, we have formulated a method of fuzzy reasoning based on residual implication. Among these criteria, the specificity possessed by the conclusion deduced by generaliz...<more>

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Last updated on Jul. 19, 2024