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3rd IEEE International Conference on intelligent Networking and Collaborativesystems, INCoS 2011

作者： Kagawa, Tsuneo Kudo, Hideki Tanoue, Shuichi Kiyosue, Hiro Mori, Hiromu Nishino, Hiroaki Utsumiya, Kouichi Department of Computer Science and Intelligent Systems Oita University Oita Japan Department of Radiology Oita University Faculty of Medicine Oita Japan Institute for Hyper Network Society Oita Japan

ISBN: (纸本)9780769545790

Recently, computer Aided Diagnosis (CAD) has become one of the most important for medical activity. The more exact and various CAD become, the larger amount of medical images are provided. Furthermore, these images becomes high definition. Radiologists have to cost their time and efforts to investigate these medical images. It is strongly required to reduce their burden without debasing the quality of imaging diagnosis. In this paper, we propose the technique to generate sound information based on the image features and discuss their effects for diagnosis. Generating sound effects helps for attention rousing and the fatigue reduction for medical imaging diagnosis. © 2011 IEEE.

关键词： computer aided diagnosis

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A highly interpretable fuzzy rule base using ordinal structure for obstacle avoidance of mobile robot

A highly interpretable fuzzy rule base using ordinal structu...

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作者： Samsudin, Khairulmizam Ahmad, Faisul Arif Mashohor, Syamsiah Intelligent System and Robotics Laboratory Institute of Advanced Technology Universiti Putra Malaysia 43400 Serdang Selangor Malaysia Department of Computer and Communication Systems Faculty of Engineering Universiti Putra Malaysia 43400 Serdang Selangor Malaysia

Conventional fuzzy logic controller is applicable when there are only two fuzzy inputs with usually one output. Complexity increases when there are more than one inputs and outputs making the system unrealizable. The ordinal structure model of fuzzy reasoning has an advantage of managing high-dimensional problem with multiple input and output variables ensuring the interpretability of the rule set. This is achieved by giving an associated weight to each rule in the defuzzification process. In this work, a methodology to design an ordinal fuzzy logic controller with application for obstacle avoidance of Khepera mobile robot is presented. The implementation will show that ordinal structure fuzzy is easier to design with highly interpretable rules compared to conventional fuzzy controller. In order to achieve high accuracy, a specially tailored Genetic Algorithm (GA) approach for reinforcement learning has been proposed to optimize the ordinal structure fuzzy controller. Simulation results demonstrated improved obstacle avoidance performance in comparison with conventional fuzzy controllers. Comparison of direct and incremental GA for optimization of the controller is also presented. © 2010 Elsevier B.V. All rights reserved.

关键词： Genetic algorithms

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GLOBAL WORKSPACE THEORY, SHANAHAN, AND LIDA

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Journal of Artificial Intelligence and Consciousness 2011年第2期3卷 327-337页

作者： STAN FRANKLIN Department of Computer Science Institute for Intelligent Systems The University of Memphis Memphis TN 38152 USA

Following a brief review of Shanahan's so many, and so important, contributions to global workspace theory, as presented in his Embodiment and the Inner Life , we attempt to interpret, and flesh out, Shanahan'... 详细信息

关键词： consciousness cognition global work space theory LIDA model embodied cognition brain network anatomy and dynamics relevance problem cognitive cycle volitional action selection consciously mediated action selection

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No-go theorem for one-way quantum computing on naturally occurring two-level systems

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Physical Review A 2011年第5期83卷 050301(R)-050301(R)页

作者： Jianxin Chen Xie Chen Runyao Duan Zhengfeng Ji Bei Zeng Department of Computer Science and Technology Tsinghua National Laboratory for Information Science and Technology Tsinghua University Beijing China Department of Physics Massachusetts Institute of Technology Cambridge Massachusetts USA Centre for Quantum Computation and Intelligent Systems (QCIS) Faculty of Engineering and Information Technology University of Technology Sydney New South Wales Australia Perimeter Institute for Theoretical Physics Waterloo Ontario Canada State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China Institute for Quantum Computing and Department of Combinatorics and Optimization University of Waterloo Waterloo Ontario Canada

The ground states of some many-body quantum systems can serve as resource states for the one-way quantum computing model, achieving the full power of quantum computation. Such resource states are found, for example, in spin-52 and spin-32 systems. It is, of course, desirable to have a natural resource state in a spin-12, that is, qubit system. Here, we give a negative answer to this question for frustration-free systems with two-body interactions. In fact, it is shown to be impossible for any genuinely entangled qubit state to be a nondegenerate ground state of any two-body frustration-free Hamiltonian. What is more, we also prove that every spin-12 frustration-free Hamiltonian with two-body interaction always has a ground state that is a product of single- or two-qubit states. In other words, there cannot be any interesting entanglement features in the ground state of such a qubit Hamiltonian.

关键词： QUANTUM computers QUANTUM theory HAMILTONIAN operator HAMILTONIAN systems PHYSICS

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Vibration control of a flexible timoshenko beam under unknown external disturbances

Vibration control of a flexible timoshenko beam under unknow...

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作者： Ge, Shuzhi Sam Zhang, Shuang He, Wei Institute of Intelligent Systems and Information Technology School of Computer Science and Engineering University of Electronic Science and Technology of China Chengdu 610054 China Department of Electrical and Computer Engineering National University of Singapore Singapore 117576 Singapore

ISBN: (纸本)9789881725592

In this paper, we present the vibration control of a Timoshenko beam under the external unknown spatiotemporally varying distributed disturbance and time-varying boundary disturbances. The model of the Timoshenko beam extracted from a class of flexible systems is represented by a hybrid model including both nonhomogeneous partial differential equations (PDEs) and ordinary differential equations (ODEs). To suppress the vibration of the system and reduce the effects of the external disturbances, adaptive boundary control is proposed based on Lyapunov's direct method. With the proposed boundary control strategy, the states of the system are proven to be uniformly ultimately bounded and converge to a small neighborhood of zero by choosing the design parameters. Several simulations are shown to illustrate the effectiveness of the proposed adaptive boundary control. © 2011 Chinese Assoc of Automati.

关键词： Vibration control

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System design and implementation of social interactive robot Nancy

System design and implementation of social interactive robot...

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4th International Conference on Interaction sciences: IT, Human and Digital Content, ICIS 2011

作者： Ge, Shuzhi Sam Liew, Chun Fui Li, Yanan Department of Electrical and Computer Engineering Interactive Digital Media Institute National University of Singapore Singapore 117576 Singapore Institute of Intelligent Systems University of Electronic Science and Technology of China Chengdu 610054 China Social Robotics Lab NUS Graduate School for Integrative Sciences and Engineering National University of Singapore Singapore 119613 Singapore

ISBN: (纸本)9788988678442

This paper presents a social interactive robot Nancy that has been developed in Social robotics Laboratory, National University of Singapore. Fundamentally different from factory robots, Nancy's design focuses on social interaction and social intelligent system. The design objectives and consideration are examined in the beginning, followed by the description of hardware and software architectures. Contrast to current existing social robots, Nancy has a graphical user interface (GUI), which acts as an additional channel for human-robot interaction. This GUI helps users to have a better understanding of Nancy's internal states and hence make users feel more comfortable during the interaction with Nancy. Visitors' interaction experience with Nancy is discussed together with Nancy's social skills. © 2011 AICIT.

关键词： Graphical user interfaces

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Beta-eigenspaces for autonomous mobile robotic trajectory outlier detection

Beta-eigenspaces for autonomous mobile robotic trajectory ou...

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2011 IEEE International Conference on Technologies for Practical Robot Applications, TePRA 2011

作者： Zaheer, Shyba Gulrez, Tauseef Deaprtment of Electrical Engineering College of Engineering and Applied Sciences Al Ghurair University Dubai Academic City United Arab Emirates Department of Computer Science Center for Intelligent Machines and Robotics Research COMSATS Institute of Information Technology Lahore Pakistan

ISBN: (纸本)9781612844824

This paper addresses the problem of robotics trajectory building for efficient navigation and consequently exploration. A concept of beta-eigenvector has been introduced to find an outlier for the existing non-point based trajectory obtained from raw laser data. We have used our paradigm of "free configuration eigenspaces" method [1], with specific focus on outlier detection. The key idea proposed in this paper is to replace the Gaussian distribution utilized by the probabilistic principal component analysis (PPCA) with the beta-distribution. It is a well known issue that the conventional PCA is sensitive to anomalous observations because the calculation of sample mean and covari-ance matrix can be significantly influenced by a small number of outliers. Similarly, PPCA is not robust to outliers since the data are assumed to follow a multivariate Gaussian distribution that is easily affected by deviant observations. An outlier detection is done using Beta-Probabilistic Principal Component Analysis (BPPCA), further more an analysis is proposed to identify which variables contribute the most to the occurrence of outliers. The proposed technique is applied on real-time robotics sensor data as well as on the real-time robotics simulation environment. © 2011 IEEE.

关键词： Gaussian distribution

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A CG learning tool with guided programming environment

A CG learning tool with guided programming environment

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2011 International Conference on Network-Based Information systems, NBiS 2011

作者： Nishino, Hiroaki Sueyasu, Shogo Kagawa, Tsuneo Utsumiya, Kouichi Department of Computer Science and Intelligent Systems Oita University 700 Dannoharu Oita 870-1192 Japan FUJITSU Kyushu Network Technologies Ltd. Fukuoka Japan Institute for Hypernetwork Society Oita Japan

ISBN: (纸本)9780769544588

3 dimensional computer graphics (3DCG) becomes an easily accessible technology for general public. The 3DCG production skill is becoming one of mandatory technical capabilities for IT engineers. The learning aids such as text books and related web pages consist of captured 2D images for understanding 3DCG theories and program codes for explaining specific algorithms. The learners should work with multiple materials and tools including the books, some tools for learning 3D modeling, rendering, and animation, and a development tool for acquiring graphics programming skill. These efforts require enormous amount of time and impose a heavy burden on the learners. To solve the problem, we have been developing a self-contained 3DCG learning support system. It helps the learners to intuitively acquire the 3DCG production skills through a handson graphics programming environment. © 2011 IEEE.

关键词： Three dimensional computer graphics

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Micro E-Board: An interactive teaching aid using mobile devices

Micro E-Board: An interactive teaching aid using mobile devi...

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3rd IEEE International Conference on intelligent Networking and Collaborativesystems, INCoS 2011

作者： Nishino, Hiroaki Hidaka, Shota Kagawa, Tsuneo Utsumiya, Kouichi Department of Computer Science and Intelligent Systems Oita University 700 Dannoharu Oita 870-1192 Japan Konami Digital Entertainment Co. Ltd. Tokyo Japan Institute for Hypernetwork Society Oita Japan

ISBN: (纸本)9780769545790

Advanced computer technology has a potential power to completely change education style. Ubiquitous computing framework allows students to learn anywhere at any time. It also enables a teacher to electronically organize some materials on site and present them according to students' situation. In this paper, we describe an interactive teaching aid called Micro E-Board designed and implemented to solve some problems existing in currently available e-learning technology. The proposed system allows users to easily build an intuitive e-learning environment anywhere at any time based on mobile technology and prompts interactions between a teacher and students with a set of easy-to-use functions. © 2011 IEEE.

关键词： Students

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A touch screen interface design with tactile feedback

A touch screen interface design with tactile feedback

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5th International Conference on Complex, intelligent and Software Intensive systems, CISIS 2011

作者： Nishino, Hiroaki Goto, Ryotaro Kagawa, Tsuneo Yoshida, Kazuyuki Utsumiya, Kouichi Hirooka, Junji Osada, Toshihiko Nagatomo, Nobuhiro Aoki, Eiji Department of Computer Science and Intelligent Systems Oita University Oita Japan Kyushu Telecom Promotion Center Fukuoka Japan AVOC Co. Ltd. Miyazaki Japan Institute for Hypernetwork Society Oita Japan

ISBN: (纸本)9780769543734

Various information displays are becoming available for implementing new kinds of human computer interaction (HCI) methods. Touch screen devices become the most popular choice among many types and models. They have been used in wide range of applications and are proven to be a useful infrastructure for creating intuitive HCI. In spite of their popularity, there are some weak points. The most serious drawback is their hardness for operation especially for the weak in information technology such as elderly and blind users. A tactile feedback function has a potential ability for enabling them to make full use of the devices. We consider the tactile interaction as communication modality for complementing other channels such as visual and auditory senses and improving intuitiveness for various operations. To make the tactile interface a practical communication channel, a design principle for implementing mutually discriminable tactile stimuli is required. The principle should define multiple stimulus patterns giving users distinctive tactile impressions. Our goal is to empirically work out the principle through developing an experiment system for checking varied tactile effects and discovering good solutions. In this paper, we elaborate the system implemented by using a type of touch screen tactile display and some experiments conducted for exploring the principle. © 2011 IEEE.

关键词： Graphical user interfaces

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