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IEEE Conference on Cybernetics and Intelligent Systems

作者： Pedro Abreu José Moura Daniel Castro Silva Luís Paulo Paulo Reis Júlio Garganta Department of Informatics Engineering FEUP-Faculty of Engineering LIACC-Artificial Intelligence and Computer Science Laboratory University of Porta Porto Portugal FADEUP-Faculty of Sports University of Porta Porto Portugal

A soccer game can be seen as a confrontation between two teams of agents where each player, communicating with his teammates, try to interpret in the best way as possible the game situations, achieving its main goals. Today the most important factors in a soccer clubs life and in its coach success are the game results they achieve. They represent the success of the club and in many cases the coachs future. Because of that club coaches usually use automated tools to measure their teams performance all over a soccer competition. Based only in Cartesian coordinates and in a sequential time frame analysis, this research work presents an automatic tool capable to calculate many technical aspects in a soccer match. For the validation tool process, games of simulation 2d RoboCup international competition were used. The results achieved were quite satisfactory. In what concerns to the set of statistics collected more than 92% of the total events were detected and only for the shot event this number dropped to between 74% and 85%. The future work will be concerned in incorporating this project with a real time tracking system and increasing the number of technical aspects calculated by the system.

关键词： Event detection Gunshot detection systems Games informatics Artificial intelligence computer science Laboratories Statistics Real time systems Robot kinematics

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Symbolic descriptor and state space model of interconnected linear systems with algebraic loops

Symbolic descriptor and state space model of interconnected ...

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IEEE International Symposium on computer Aided Control System Design (CACSD)

作者： Masanobu Koga Satoru Anan Department of Systems Design and Informatics Faculty of Computer Science and Systems Engineering Kyushu Institute of Technology Fukuoka Japan Department of Creative Informatics Kyushu Institute of Technology Fukuoka Japan

This paper proposes a method which gives symbolic model of the interconnected linear system using the adjacency matrix which represent the system. When there exist any algebraic loops in the system, they are reduced to the self loops by the edge contraction. If the weight matrix of the self loop is nonsingular, it is removed and the symbolic state space model is obtained, otherwise the symbolic descriptor model is obtained. We introduce a new interactive graphical software tool which have been developed for modeling and simulation of control systems using the proposed method.

关键词： Linear systems Interconnected systems Delay effects Numerical models Computational modeling Mathematical model

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Performance evaluation of various storage formats for clinical data repositories

Performance evaluation of various storage formats for clinic...

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2010 IEEE International Workshop on Medical Measurements and Applications, MeMeA 2010

作者： Gilchrist, Jeff Frize, Monique Ennett, Colleen M. Bariciak, Erika Dept. Systems and Computer Engineering Carleton University Ottawa ON Canada School of Information Technology and Engineering University of Ottawa Ottawa ON Canada Dept. Biomedical Informatics Philips Research North America Briarcliff Manor NY United States Faculty of Medicine University of Ottawa Children's Hospital of Eastern Ontario Ottawa ON Canada

ISBN: (纸本)9781424462896

The performance of three different Entity-Attribute-Value (EAV) storage formats for Clinical Data Repositories (CDRs) is compared with regards to querying millions of data points from clinical sources to assess the amount of storage space the data use, the speed with which the data can be obtained, and the complexity of the queries required to retrieve the data. Performance results are presented that show that the hybrid EAV approach provides a nice balance of the simple and multi-data type formats. ©2010 IEEE.

关键词： Decision support systems

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Intelligent techniques for business intelligence in healthcare

Intelligent techniques for business intelligence in healthca...

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International Conference on Intelligent Systems Design and Applications (ISDA)

作者： Maria Antonina Mach M. Salem Abdel-Badeeh Faculty of Management Computer Science and Finance University of Economics Wroclaw Poland Department of Computer Science Head of Medical Informatics and Knowledge Engineering Research Unit Faculty of Computer and Information sciences Ain Shams University Cairo Egypt

Business intelligence is a new methodology to maximize the benefits for healthcare organization Business intelligence provides an integrated view of data that can be used to monitor, key performance indicators, identify hidden patterns in diagnosis and identify variations in cost factors. Intelligent techniques provide an effective computational methods and robust environment for business intelligence in the healthcare domain. From the technical point of view, healthcare based business intelligence systems, are complex to build, maintain and face the knowledge-acquisition difficulty. Efficiency of such systems is determined by the efficiency of the intelligent techniques and methodologies. This paper discusses AI based techniques and approaches which are used in such systems namely; expert systems, data mining and grid computing.

关键词： Medical services Bismuth Expert systems Data mining Organizations

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Investigation of the spatial spectrum of cortical contours on cross-sections of the brain

Investigation of the spatial spectrum of cortical contours o...

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10th International Conference on Information Technology and Applications in Biomedicine: Emerging Technologies for Patient Specific Healthcare, ITAB 2010

作者： Graichen, Uwe Eichardt, Roland Güllmar, Daniel Haueisen, Jens Ilmenau University of Technology Faculty of Computer Science and Automation Institute of Biomedical Engineering and Informatics P.O. Box 100565 98684 Ilmenau Germany Jena University Hospital Department of Diagnostic and Interventional Radiology Medical Physics Group Philosophenweg 3 07743 Jena Germany

ISBN: (纸本)9781424465606

The human brain possesses a highly structured surface. A quantitative examination of the cortical surface is of particular interest for many questions, e.g. the investigation the relation between the spatial frequencies of cortical surfaces and spatial frequencies within Electroencephalogram and the analysis of changes of the structure of the human brain caused by diseases. In this paper a Fourier analysis approach to investigate the spatial spectrum of contour data of the cortical surface is introduced. The method was validated using artificial data with known spatial spectrum and employed to investigate the spatial frequencies of the cortical surface of a human subject. © 2010 IEEE.

关键词： Fourier analysis

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Fluctuated peer selection policy and its performance in large-scale multi-agent systems

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Web Intelligence and Agent Systems 2010年第3期8卷 255-268页

作者： Sugawara, Toshiharu Fukuda, Kensuke Hirotsu, Toshio Sato, Shin-Ya Akashi, Osamu Kurihara, Satoshi Dept. of Computer Science and Engineering Waseda University Shinjuku Tokyo 169-8555 Japan National Institute of Informatics Chiyoda Tokyo 101-8430 Japan NTT Network Innovation Laboratories Musashino Tokyo 180-8585 Japan Faculty of Information Science Hosei University Koganei Tokyo 184-8584 Japan Institute of Scientific and Industrial Research Osaka University Osaka 567-0047 Japan

This paper describes how, in large-scale multi-agent systems, each agent's adaptive selection of peer agents for collaborative tasks affects the overall performance and how this performance varies with the workload of the system and with fluctuations in the agents' peer selection policies (PSP). An intelligent agent in a multi-agent system (MAS) often has to select appropriate agents to assign tasks that cannot be executed locally. These collaborating agents are usually chosen according to their skills. However, if multiple candidate peer agents still remain a more efficient agent is preferable. Of course, its efficiency is affected by the agent' workload and CPU performance and the available communication bandwidth. Unfortunately, as no agent in an open environment such as the Internet can obtain such data from any other agent, this selection must be done according to the available local information about the other known agents. However, this information is limited, usually uncertain and often obsolete. Agents' states may also change over time, so the PSP must be adaptive to some extent. We investigated how the overall performance of MAS would change under adaptive policies in which agents selects peer agents using statistical/reinforcement learning. We particularly focused on mutual interference for selection under different workloads, that is, underloaded, near-critical, and overloaded situations. This paper presents simulation results and shows that the overall performance of MAS highly depends on the workload. It is shown that when agents' workloads are near the limit of theoretical total capability, a greedy PSP degrades the overall performance, even after a sufficient learning time, but that a PSP with a little fluctuation, called fluctuated PSP, can considerably improve it. © 2010 - IOS Press and the authors. All rights reserved.

关键词： Multi agent systems

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engineering for industrial robots in content based virtual space

Engineering for industrial robots in content based virtual s...

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IEEE International Workshop on Robotics in Alpe-Adria-Danube Region (RAAD)

作者： László Horváth Imre J. Rudas Karel Jezernik Institute of Intelligent Engineering Systems John von Neumann Faculty of Informatics Buddha University Budapest Hungary Institute of Robotics Faculty of Electrical Engineering and Computer Science University of Maribor Maribor Slovenia

One of the main recent achievements in engineering is description of complex products and their physical environment in a single object model. This model has capabilities to serve engineering from the first specification of a product to recycling. New research programs were needed in order to establish a new style of engineering where engineers communicate model creation and application procedures. The authors joined to these efforts and developed new modeling methods for the above purpose. In this paper they introduce some of these methods considering needs by the complex and knowledge intensive engineering for robot systems. Paper starts with an outline of application of virtual spaces in robot system modeling. Following this, a content based contextual object definition is explained considering robotic application. Next, application of human control by contextual spaces for adaptive definition of engineering objects and the related control of product definition are shown. Finally, object space for robot system is outlined as application related issue of the proposed modeling.

关键词： Aerospace industry Service robots Orbital robotics Recycling Knowledge engineering Systems engineering and theory Modeling Humans Programmable control Adaptive control

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Business Rules Discovery from Process Design Repositories

Business Rules Discovery from Process Design Repositories

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IEEE World Congress on Services (SERVICES)

作者： Jantima Polpinij Aditya K. Ghose Hoa Khanh Dam Decision Systems Laboratory (DSL) School of Computer Science and Software Engineering (SCSSE) Faculty of Informatics University of Wollongong Wollongong NSW Australia

Traditional process mining approaches focus on extracting process constraints or business rules from repositories of process instances. In this context, process designs or process models tend to be overlooked although they contain information that are valuable for the process of discovering business rules. This paper will propose an alternative approach to process mining in terms of using process designs as the mining resources. We propose a number of techniques for extracting business rules from repositories of business process designs or models, leveraging the well-known Apriori algorithm. Such business rules are then used as a prior knowledge for further analysing, verifying, and modifying process designs.

关键词： Process design Association rules Algorithm design and analysis Organizations Logic gates

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Composition challenges and approaches for cyber physical systems

Composition challenges and approaches for cyber physical sys...

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IEEE International Conference on Networked Embedded Systems for Enterprise Applications

作者： Kaiyu Wan Danny Hughes Ka Lok Man Tomas Krilavičius Computer Science and Software Engineering Xi'an Jiaotong-Liverpool University Suzhou China Informatics Faculty Vytautas Magnus University Kaunas Lithuania

A wide variety of programming abstractions have been developed for cyber-physical systems. These approaches provide support for the composition of cyber-physical systems from generic units of application functionality. This paper surveys the current state-of-the-art in composition mechanisms for cyber physical systems and reviews each approach in terms of its support for composition analysis, re-use and adaptation. We then review approaches for modeling and verifying cyber-physical application compositions and conclude by proposing promising research directions that will address these shortcomings.

关键词： Analytical models Semantics Computational modeling Algebra Automata Software Java

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An experimental analysis of biased parallel greedy approximation for combinatorial auctions

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International Journal of Intelligent Information and Database Systems 2010年第5期4卷 487-508页

作者： Fukuta, Naoki Ito, Takayuki Department of Computer Science Faculty of Informatics Shizuoka University 3 5 1 Johoku Nakaku Hamamatsu 4328011 Japan Department of Computer Science and Engineering Graduate School of Engineering Nagoya Institute of Technology Gokisocho Showa Nagoya 4668555 Japan

Considering emerging demands for auction based efficient resource allocations, the ability to complete an auction within a fine-grained time period without loss of allocation efficiency is in strong demand. Recently, an algorithm has been proposed to obtain near-optimal solutions for winner determination problem on combinatorial auctions within a very short computation time. However, it is demanded to analyse and clarify the main factor of such an excellent performance of the algorithm. Also, for practical use, there are demands to clarify the actual implementation-level performance of the algorithm compared to major commercial-level generic problem solvers. In this paper, we show an analysis about performance issues of biased parallel greedy updating approach in various experimental settings. Furthermore, we show that the algorithm has a certain advantage to solve a kind of large-size high-complexity problems when it is compared to a latest commercial-level implementation of generic LP solver through various experiments. © 2010 Inderscience Enterprises Ltd.

关键词： Approximation algorithms

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