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IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)

作者： Aruna Chakraborty Amit Konar Atulya K. Nagar Visiting Faculty in the M.Tech Course on Intelligent Automation and Robotics Jadavpur University Calcutta India Artificial Intelligence Laboratory Department of Electronics and Telecommunication Engineering Jadavpur University Calcutta India Department of Computer Science Liverpool Hope University Liverpool UK

The paper proposes a new approach to fuzzy abduction by extending the contraposition rule of propositional logic. The main difficulty of fuzzy abduction is due to the restriction of single antecedent clause in a fuzzy production rule. When more than one antecedent clause occurs jointly in a fuzzy rule, the membership value of the derived antecedent clauses become equal, which should not be the case in general. The paper overcomes this problem and demonstrates a simple but elegant method to compute premises in a multi-chained reasoning system.

关键词： Production Firing Cognition Fuzzy sets Electronic mail computer science

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Ubiquitous Mining with Interactive Data Mining Agents

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Journal of computer Science & Technology 2009年第6期24卷 1018-1027页

作者：吴信东朱兴全陈琪君王飞跃 School of Computer Science and Information Engineering Hefei University of Technology Department of Computer Science University of Vermont Faculty of Engineering and Information Technology University of Technology Institute of Automation Chinese Academy of Sciences

Due to the increasing availability and sophistication of data recording techniques, multiple information sources and distributed computing are becoming the important trends of modern information systems. Many applications such as security informatics and social computing require a ubiquitous data analysis platform so that decisions can be made rapidly under distributed and dynamic system environments. Although data mining has now been popularly used to achieve such goals, building a data mining system is, however, a nontrivial task, which may require a complete understanding on numerous data mining techniques as well as solid programming skills. Employing agent techniques for data analysis thus becomes increasingly important, especially for users not familiar with engineering and computational sciences, to implement an effective ubiquitous mining platform. Such data mining agents should, in practice, be intelligent, complete, and compact. In this paper, we present an interactive data mining agent - OIDM （online interactive data mining）, which provides three categories （classification, association analysis, and clustering） of data mining tools, and interacts with the user to facilitate the mining process. The interactive mining is accomplished through interviewing the user about the data mining task to gain efficient and intelligent data mining control. OIDM can help users find appropriate mining algorithms, refine and compare the mining process, and finally achieve the best mining results. Such interactive data mining agent techniques provide alternative solutions to rapidly deploy data mining techniques to broader areas of data intelligence and knowledge informaties.

关键词： information systems human-centered computing data mining intelligent agents

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A close-up detection method for movies

A close-up detection method for movies

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IEEE International Conference on Image Processing

作者： Huiying Liu Min Xu Qingming Huang Jesse S. Jin Shuqiang Jiang Changsheng Xu Chinese Academy of Sciences Beijing China Key Laboratory of Intelligence Information Process. Institute of Computer Technology Chinese Academy and Sciences Beijing China Faculty of Engineering and Information Technology Sydney University of Technology Sydney Australia School of Design Communication and IT University of Newcastle Australia National Laboratory of Pattern Recognition Institute of Automation Chinese Academy and Sciences Beijing China

Close-up (CU) is a photographic technique which tightly frames a person or an object. In movies, it is applied to guide audience attention and to evoke audience emotion. In this paper, we detect face CU, object CU, and lean of movies, which are widely used to romance emotions. A lean consists of shots in a sequence, with a close-up shot as focus. A set of features are extracted by considering movie making techniques and human attention for CU detection. The features are average saliency, color entropy, color variance, face height, skin area, and texture scales. These features are tested through statistical hypothesis test to be significantly discriminating for CUs. Then, Support Vector Machine (SVM) is applied on these features to detect face CU and object CU. Based on the face CU and object CU detection result, lean is further detected by investigating the changing of the face/object size. Lean detection is of challenge due to the technique of montage. We solve this problem through color similarity estimation and SIFT point matching. Experimental results on four full length movies verify the effectiveness of the proposed method.

关键词： Copper Face Motion pictures Feature extraction Color Skin Humans

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Geometric robot motion strategies

Geometric robot motion strategies

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8th International Conference on Mechatronics 2009

作者： Šeda, M. Březina, T. Brno University of Technology Faculty of Mechanical Engineering Institute of Automation and Computer Science Technická 2896/2 Brno Czech Republic

ISBN: (纸本)9783642050213

In robot motion planning in a space with obstacles, the goal is to find a collision-free path of robot from the starting to the target position. There are many approaches depending on types of obstacles, dimensionality of the space and restrictions for robot movements. Among the most frequently used are roadmap methods (visibility graphs, Voronoi diagrams, rapidly exploring random trees) and methods based on cell decomposition. A common feature of all these methods is the generating of trajectories composed from line segments. In this paper, we will show that generalised Voronoi diagrams can be used for fast generation of smooth paths sufficiently distant from obstacles.

关键词： Trees (mathematics)

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Research on infrared breath alcohol test based on differential absorption

Research on infrared breath alcohol test based on differenti...

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1st International Conference on Information Science and engineering, ICISE2009

作者： Li, Ren-Wang Xiong, Ye-Pan Wang, Yong-Jian Wan, Fen Faculty of Mechanical Engineering and Automation Zhejiang Sci-Tech University Hangzhou Zhejiang China School of Computer Science and Technology North China Electric Power University Beijing China

ISBN: (纸本)9780769538877

An infrared alcohol testing system based on differential absorption is presented. The technique relies on the fact that the breath alcohol gas has a unique, well-defined absorption characteristic within the infrared region of electromagnetic spectrum. It is used to detect the present and concentration of alcohol gas. The non-dispersive infrared gas detection principle is introduced in detail. Experiments show that the testing system has high precision, good environment adaptability, and its indication error and repeatability reach the China National Standards. ©2009 IEEE.

关键词： Absorption spectroscopy

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Genetic algorithms for scenario generation in stochastic programming motivation and general framework

Genetic algorithms for scenario generation in stochastic pro...

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作者： Roupec, Jan Popela, Pavel Brno University of Technology Faculty of Mechanical Engineering Institute of Automation and Computer Science Technická 2 616 69 Brno Czech Republic Brno University of Technology Faculty of Mechanical Engineering Institute of Mathematics Technická 2 616 69 Brno Czech Republic

ISBN: (纸本)9781402089183

Traditional deterministic max-min and min-min techniques are significantly limited by the size of scenario set. Therefore, this text introduces a general framework how to generate and modify suitable scenario sets by using genetic algorithms. As an example, the search of absolute lower and upper bounds by using GA is presented and further enhancements are discussed. The proposed technique is implemented in C++ and GAMS and then tested on real-data examples. © Springer Science+Business Media B.V. 2009.

关键词： Genetic algorithms

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Dynamic GTS scheduling of periodic skippable slots in IEEE 802.15.4 Wireless Sensor Networks 8th

Dynamic GTS scheduling of periodic skippable slots in IEEE 8...

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8th IFAC Conference on Fieldbuses and Networks in Industrial and Embedded Systems, FeT 2009

作者： Semprebom, Tiago Montez, Carlos Moraes, Ricardo Vasques, Francisco Portugal, Paulo Automation and Systems Department Federal University of Santa Catarina Florianopolis Brazil Computer Science Department UFSC Florianopolis Brazil UISPA/ISR Faculty of Engineering University of Porto Porto Portugal

ISBN: (纸本)9781617825583

The IEEE 802.15.4 standard offers a flexible communication solution for low-rate wireless small area networks. When the beacon mode is enabled, real-time communication is possible by using the Guaranteed Time Slots (GTS) mechanism. However, the beacon-enabled mode only supports a maximum of seven GTS allocated in each superframe, preventing other nodes to benefit from the guaranteed service. This paper introduces the SIGHT (Skips In GTS scHeduling for IEEE 802.15.4 neTworks) model, which incorporates a dynamic GTS allocation policy for IEEE 802.15.4 networks based on the (m,k)-firm task model. Our approach ensures that at least m messages are allocated in a guaranteed slot, for any k consecutive superframes. It adopts a deterministic schedulability test and an on-line prioritization heuristic algorithm called Slotted DBP (Distance Based Priority) to attend requests according to this schedulability model. A simulation model has been developed, in order to compare the behaviour in overload conditions of the proposed Slotted DBP with other approaches (DWCS and FIFO).

关键词： Real time systems

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Estimating the state of distributed dynamical systems based on limited measurements by means of cooperative filtering with application to ad-hoc vehicle networks

Estimating the state of distributed dynamical systems based ...

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7th IFAC International Symposium on Fault Detection, Supervision and Safety of Technical Systems, SAFEPROCESS'09

作者： Edelmayer, A. Miranda, M. Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 H-1111 Budapest Hungary Faculty of Engineering University of Los Andes Merida Venezuela

ISBN: (纸本)9783902661463

In this paper a decentralized approach to state estimation of distributed dynamical systems over unreliable communication network subject to uncertain and limited measurements is addressed. Specifically, a distributed filtering concept for enhancing the estimation accuracy of vehicles state from uncertain position data in ad-hoc vehicle networks is presented. The filter relies on a variety of position measurements obtained from the on-board vehicle positioning system, from other nearby cooperating vehicles, as well as from the immediate roadside environment via communication. Direct distance measurements between vehicles as well as between vehicles and the static elements of the roadside infrastructure can be used, if available, as highly accurate reference measurements. The paper demonstrates how successfully the idea of cooperative filtering in addressing the demands of both sensor fault tolerance and enhanced estimation accuracy in distributed systems over ad-hoc communication networks can be used. © 2009 IFAC.

关键词： State estimation

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Self-building simulation tool for daily decision support in production control

Self-building simulation tool for daily decision support in ...

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8th International Workshop on Modeling and Applied Simulation, MAS 2009, Held at the International Mediterranean and Latin American Modeling Multiconference, I3M 2009

作者： Pfeiffer, András Kádár, Botond Szathmári, Marcell Popovics, Gergely Vén, Zoltán Monostori, László Engineering and Management Intelligence Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences Kende u. 13-17 Budapest H-1111 Hungary Department of Manufacturing Science and Technology Faculty of Mechanical Engineering Budapest University of Technology and Economics Budapest Hungary

ISBN: (纸本)9781629934747

The paper introduces a decision support architecture with an integrated, self-building simulation module for the validation of the calculated manufacturing capacities, a-priori recognition of due date deviations and analysis of the effect of possible actions. In the underlying research special attention is devoted to the prediction and evaluation of the production on a daily, rolling time horizon basis (e.g., work in process (WIP) trajectories, machine utilizations). The paper addresses the simulation module of a higher level integrated system in which the simulation model is automatically built o the basis of a real-time connection to Manufacturing Execution System. The main functionalities and advantages are highlighted through a real industrial case study.

关键词： Production control

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Discrete time minimax tracking control with disturbance estimation 10

Discrete time minimax tracking control with disturbance esti...

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2009 10th European Control Conference, ECC 2009

作者： Bauer, Peter Kulcsar, Balazs Bokor, Jozsef Systems and Control Laboratory Computer and Automation Research Institute Hungarian Academy of Sciences BudapestH-1111 Hungary Delft Center for System and Control Faculty of Mechanical Maritime and Materials Engineering Technical University of Delft Mekelweg 2 Delft Netherlands

ISBN: (纸本)9783952417393

The paper proposes an alternative way to solve robust reference tracking problem. Instead of rejecting the effect of the disturbance directly, an intermediate step is built into the state estimation problem. The advantage of the methodology is to elaborate a modified optimal state estimation problem taking the unbiased estimate of the disturbance into account. Henceforward, the solution of the discrete time, optimal LQ minimax tracking problem is modified and subjected to attenuate the disturbance residual. The paper addresses the nominal case for constant reference and disturbance signal showing the asymptotical stability and the tracking performance of the discrete time, optimal min-max control. Suboptimal solution is given for time varying reference and disturbance signal. A linearized hovering quadrotor example demonstrates the importance of the suggested technique. © 2009 EUCA.

关键词： State estimation

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