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International Conference on Intelligent Networking and Collaborative systems (INCOS)

作者： Leonard Barolli Gjergji Mino Taku Ikebata Admir Barolli Fatos Xhafa Makoto Takizawa Department of Information and Communication Engineering Fukuoka Institute of Technology Fukuoka Japan Graduate School of Engineering Fukuoka Institute of Technology Fukuoka Japan Department of Computers and Information Science Seikei University Musashino Tokyo Japan Department of Languages and Informatics Systems Technical University of Catalonia Barcelona Spain

The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning. However, the decision for CAC is very challenging issue due to user mobility, limited radio spectrum, and multimedia traffic characteristics. To deal with these problems, we implemented a Fuzzy Admission Control System (FACS). We compared the performance of FACS with Shadow Cluster Concept (SCC). In another work, we extended FACS by considering the priority of the on-going connections. We called this system FACS-P. As priority parameter, we considered only one parameter (service request). In this work, we improve our previous system by adding different priorities. We call this system FACS-MP. We evaluate and compare the performance of implemented systems by simulations. From the simulations results, we conclude that the FACS-MP can differentiate better different services compared with previous systems.

关键词： Mobile communication Quality of service Pragmatics Wireless networks Radiation detectors Fuzzy logic

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Possibilistic regression analysis of influential factors in the planning and implementation of occupational health and safety management systems

Possibilistic regression analysis of influential factors in ...

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IEEE International Conference on Fuzzy systems (FUZZ-IEEE)

作者： Azizul Azhar Ramli Junzo Watada Witold Pedrycz Graduate School of Information Production and Systems Waseda University Fukuoka Japan Department of Electrical & Computer Engineering University of Alberta Edmonton AB Canada Polish Academy of Sciences Warsaw Poland

The code of Occupational Health and Safety (OHS) is an important regulation to improve the on-the-job safety of employees. Several factors affect the planning and implementation of OHS management systems (OHSMS). The evaluation of OHS practice is the most important component when building a safety environment policy for employees and administration. Begin aware of subjective nature of factors affecting OHS and the use of statistical method, it becomes controversial as to a way of handling this type of survey data. This research presents a combination of possibilistic regression analysis with a convex hull approach to analyze the fitting factors that impact good practices of OHS. In addition, selected samples of data could be represented as fuzzy sets. This study offers an alternative platform to evaluate influential factors being used towards a successful implementation of the OHS policy.

关键词： Companies Employment Numerical models Regression analysis Safety Planning Book reviews

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A two-dimensional expectation-perception analysis for RFID benefits in supply chain management

A two-dimensional expectation-perception analysis for RFID b...

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International Conference on Computers & Industrial engineering (CIE)

作者： Pao-Tiao Chuang J. Wesley Barnes Department of Asia-Pacific Industrial and Business Management National University of Kaohsiung Kaohsiung Taiwan Graduate Program in Operations Research and Industrial Engineering University of Texas Austin Austin TX USA

This paper explores two important themes in the implementation of RFID in supply chain management: (1) analyzing differences between actual (perceived) and potential (expected) key benefits to see if there are benefit shortfalls for the key performances; and (2) performing a two-dimensional expectation-perception analysis (EPA) for the purpose of identifying competitive niche and strategically allocating and adjusting the company's resources. Empirical data were collected through surveys of executives of selected Taiwan based companies who had experienced RFID adoption in the supply chain practices. Finally, managerial implications and suggestions were provided for companies and industries that may be considering the adoption of RFID in SCM.

关键词： Radiofrequency identification Companies Supply chains Real time systems Materials handling Supply chain management

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A solution of human resource allocation problem in a case of hotel management

A solution of human resource allocation problem in a case of...

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International Conference on Computers & Industrial engineering (CIE)

作者： Kayoko Murakami Mitsuo Gen Seren Ozmehmet Tasan Takashi Oyabu School of Arts and Sciences Shibaura Institute of Technology Saitama Japan Department of Industrial Engineering Dokuz Eylul University Izmir Turkey Graduate School of Strategic Management Kanazawa Seiryo University Kanazawa Japan Fuzzy Logic Systems Institute Fukuoka Japan

The purpose of this study is to optimally allocate the human resources to tasks while minimizing the total daily human resource costs and smoothing the human resource usage. This human resource allocation problem (hRAP) has two kinds of special constraints, i.e. operational precedence and skill constraints in addition to the ordinary constraints. To deal with the multiple objectives and the special constraints, first we designed this hRAP as a network problem and then proposed a Pareto multistage decision-based genetic algorithm (P-mdGA) to solve it. During the evolutionary process of P-mdGA, a Pareto evaluation procedure called generalized Pareto-based scale-independent fitness function approach was used to evaluate the solutions. Additionally, in order to improve the performance of P-mdGA, we used fuzzy logic controller for fine-tuning genetic parameters. Finally, in order to demonstrate the applicability and to evaluate the performance of the proposed approach, P-mdGA was applied to solve a case study in a hotel, where the managers usually need helpful automatic support for effectively allocating hotel staff to hotel tasks.

关键词： Humans Schedules Resource management Biological cells Genetics Smoothing methods Encoding

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A bitrate controlled data hiding scheme for JPEG2000

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International Journal of Computers and Applications 2010年第2期32卷 238-241页

作者： Chen, J. Chen, T.-S. Lin, C.-N. Cheng, C.-Y. Graduate School of Computer Science and Information Technology National Taichung Institute of Technology Taichung 40401 Taiwan Department of Computer Science and Information Engineering National Chung Cheng University Chiayi 62102 Taiwan Department of Management Information Systems Central Taiwan University of Science and Technology Taichung 40601 Taiwan Department of Information Management National Taichung Institute of Technology Taichung 40401 Taiwan

In this paper, a pseudo-bitrate mechanism to simulate the layer optimization step in rate allocation is proposed. The simulation forces bit readjustments in the compressed bitstreams so that all significant bitstreams will be transferred to the first q - 1 output layers leaving more space in the last qth layer for hiding data. Experimental results showed that pseudo-bitrates can be used to manipulate the amounts of data-to-hide in the compressed bitstreams.

关键词： Steganography

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Monte-Carlo tree search for a reentrant scheduling problem

Monte-Carlo tree search for a reentrant scheduling problem

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40th International Conference on Computers and Industrial engineering, CIE40 2010

作者： Matsumoto, Shimpei Hirosue, Noriaki Itonaga, Kyohei Ueno, Nobuyuki Ishii, Hiroaki Faculty of Applied Information Science Hiroshima Institute of Technology 2-1-1 Miyake Saeki-ku Hiroshima 731-5193 Japan Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Kawazu 680-4 Iizuka 820-8502 Japan Division of Electrical Electronic and Information Engineering Advanced Courses of Oita National College of Technology 1666 Oaza-Maki Oita 870-0152 Japan Department of Management and Information Systems Prefectural University of Hiroshima 1-1-71 Ujina-higashi Minami-ku Hiroshima 734-8558 Japan Department of Mathematical Sciences School of Science and Technology Kwansei Gakuin University 2-1 Gakuen Sanda 669-1337 Japan

ISBN: (纸本)9781424472956

This paper reports application results of Monte-Carlo Tree Search (MCTS) for a practical problem. In this paper, a reentrant scheduling problem is considered as a practical problem which has been addressed by our previous works. MCTS introduced by Coulom is a best-first search where the pseudorandom simulations guide the solution of problem. Recent improvements on MCTS have produced strong computer Go program, which has a large search space, and the success is a hot topic for selecting the best move. So far, most of reports about MCTS have been on two-player game, and MCTS has been applied rarely in one-player perfect-information games. MCTS does not need an admissible heuristic, so the application of MCTS for one-player games might be an interesting alternative. Additionally, one-player games like puzzles are determinately operated only by one player's decision, so sequences of changes in state are describable as a network diagram of interdependence of operations. Therefore if MCTS for one-player games is considered as a meta-heuristic algorithm, we can use this algorithm for not only many practical problems, but also combinatorial optimization problems. Especially as MCTS does not fully depend on evaluation function, so the solutions based on MCTS remain effective if objective function of problem is modified. This paper firstly investigated on the application of Single Player MCTS (SP-MCTS) introduced by Schadd et al. Next this paper showed the effectiveness of new simulation strategies on SP-MCTS by numerical experiments. Based on the results, this paper discussed the application potentiality of SP-MCTS for a practical reentrant scheduling problem.

关键词： Scheduling

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Using a Hypervisor to Migrate Running Operating systems to Secure Virtual Machines

Using a Hypervisor to Migrate Running Operating Systems to S...

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IEEE Annual International Computer Software and Applications Conference (COMPSAC)

作者： Tsutomu Nomoto Yoshihiro Oyama Hideki Eiraku Takahiro Shinagawa Kazuhiko Kato Department of Computer Science Faculty of Electro-Communications University of Electro-Communications Tokyo Japan IGEL Company Limited Tokyo Japan Department of Computer Science Graduate School of Systems and Information Engineering University of Tsukuba Ibaraki Japan

We propose HyperShield, which is a hypervisor that can be inserted into and removed from a running operating system, for improving security. While many existing security-oriented hypervisors require modifying or rebooting an overlying operating system, HyperShield does not require this. HyperShield is intended to be a general framework for various security mechanisms. The current implementation provides two mechanisms for preventing kernel-level buffer overflow. One detects the execution of user code with the kernel privilege, and the other detects malicious modification of a return address in a control stack. HyperShield is implemented on Linux as a loadable kernel module. When the module is inserted, it places itself under the operating system and executes as a hypervisor. The operating system is migrated into a virtual machine and managed by the hypervisor. HyperShield detects attacks by combining virtualization of memory management with a hardware-assisted execution-bit feature. We have confirmed through experiments that HyperShield successfully prevented kernel-level buffer overflow attacks.

关键词： Virtual machine monitors Kernel Security Virtual machining Registers Monitoring

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Dynamic reaction analysis of delivery truck hitting rigid wall directly at different speed

Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute ...

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Chung Cheng Ling Hsueh Pao/Journal of Chung Cheng Institute of Technology 2010年第1期39卷 13-22页

作者： Wang, Jee-Ray Chou, Ho-Chi Chen, Der-Wei Yen, Chien-Cheng Department of Automation Engineering and Institute of Mechatronoptic Systems Chienkuo Technology University Taiwan Department of Mechanical Engineering and Graduate Institute of Manufacturing Technology Chienkuo Technology University Taiwan Department of Power Vehicle and Systems Engineering National Defense University Taiwan Department of Product Design Ming Chuan University Taiwan

The purpose of this study is using HYPERMESH/LS-DYNA finite element analysis to analyze cargo trucks with speeds of 48, 52, 56, 60 kilometer per hour impacting on a rigid wall as well as to investigate the vehicle structure deformation and safety upon impact. Truck structure after impact at different speeds is analyzed and compared with further analytical CAE computer program showed no serious passenger compartment deformation. The result meets US FMVSS208, EU ECER84, and Japan's TRIAS74 design regulations. It shows that vehicle integrity is intact and results can be used as a reference for vehicle design and development.

关键词： Finite element method

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Novel Design of Interactive Caption and Recognition Postures within the Wearable and Non-Vision System over Wireless Sensor Network

Novel Design of Interactive Caption and Recognition Postures...

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International Conference on Complex, Intelligent and Software Intensive systems, CISIS

作者： W.T. Huang Chao-Nan Hung Chiu-Ching Tuan Chin-Hsing Chen Yuan-Jen Chang You-Yin Chen Department of Computer Science and Information Engineering Minghsin University of Science and Technology Taiwan R.O.C. Department of Graduate Institute of Computer and Communication Engineering National Taipei University of Technology Taiwan Department of Management Information Systems Central Taiwan University of Science and Technology Taiwan Dept. of Electr. & Control Eng. Nat. Chiao Tung Univ. Hsinchu Taiwan

In this study, we design and present the novel wearable system with the interactive posture caption and recognition functions based on the non-vision over the ZigBee wireless sensor network (ZigBee-WSN). There are two type sensors, 3-axis accelerometer and clip type, to be employed in our wearable system. These sensors are arranged on user's four limbs such that the posture information can be gathered by them. Then, the posture information is transmitted to the data-controlling center over ZigBee-WSN. Finally, this center can analyze and distinguish various postures by our proposed algorithm through the friend user's interface to express. Our presented wearable system can distinguish out 28 kinds of hand postures and 13 kinds of leg postures altogether. Moreover, under our presented ZigBee-WSN system with small size, low-power consumption, and high-reliability characteristics, the data-controlling center can simultaneously tele-monitor the real-time body interactive postures of 8 persons, when the transmitting distance is less than 18 M and the package correct transmitted rate is more than 97.5%.

关键词： Wireless sensor networks Wearable sensors ZigBee Sensor systems Accelerometers Algorithm design and analysis User interfaces Leg Real time systems Packaging

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A Fuzzy-Based CAC Scheme for Wireless Cellular Networks Considering Different Priorities

A Fuzzy-Based CAC Scheme for Wireless Cellular Networks Cons...

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International Conference on Network-Based Information systems (NBIS)

作者： Taku Ikebata Gjergji Mino Leonard Barolli Akio Koyama Arjan Durresi Fatos Xhafa Graduate School of Engineering Fukuoka Institute of Technology Fukuoka Japan Department of Information and Communication Engineering Fukuoka Institute of Technology Fukuoka Japan Department of Informatics Yamagata University Yonezawa Yamagata Japan Department of Computer and Information Science Indiana University-Purdue University Indianapolis Indianapolis IN USA Department of Languages and Informatics Systems Technical University of Catalonia Barcelona Spain

The mobile cellular systems are expected to support multiple services with guaranteed Quality of Service(QoS). But, the ability of wireless systems to accommodate expected growth of traffic load and broadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is one of the resource management functions, which regulates network access to ensure QoS provisioning. However, the decision for CAC is very challenging issue due to user mobility, limited radio spectrum, and multimedia traffic characteristics. In our previous work, we proposed a fuzzy-based CAC system by considering the priority of the on-going connections. As priority parameter, we considered only one parameter (service request). In this work, we extend our work by adding different priorities. We call this system FACS-MP. We evaluate by simulations the performance of the proposed system. From the simulations results, we conclude that the FACS-MP can differentiate better different services compared with previous system.

关键词： Mobile communication Wireless networks Quality of service Radiation detectors Fuzzy logic Electronic mail

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