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Proceedings of the 1999 IEEE International Symposium on Intelligent Control Intelligent Systems and Semiotics (Cat. No.99CH37014)

17-17 Sept. 1999

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  • Proceedings of the 1999 IEEE International Symposium on Intelligent Control Intelligent Systems and Semiotics (Cat. No.99CH37014)

    Publication Year: 1999
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    Freely Available from IEEE
  • Author index

    Publication Year: 1999, Page(s):463 - 464
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    Freely Available from IEEE
  • A neural network with minimal structure for maglev system modeling and control

    Publication Year: 1999, Page(s):40 - 45
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    The paper is concerned with the determination of a minimal structure of a one hidden layer perceptron for system identification and control. Structural identification is a key issue in neural modeling. Decreasing the size of a neural network is a way to avoid overfitting and bad generalization and leads moreover to simpler models which are required for real time applications, particularly in contr... View full abstract»

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  • Control of a high-order power system by neural adaptive feedback linearization

    Publication Year: 1999, Page(s):34 - 39
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB)

    Discusses the design of an adaptive feedback linearizing excitation controller/power system stabilizer using neural networks, for a high order single machine/infinite bus power system model. The neural networks are used to identify a discrete-time nonlinear dynamical model of the system. Although the controller itself is not implemented using a neural network, it adaptively uses the parameter esti... View full abstract»

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  • A neural network based nonlinear PID controller using PID gradient training

    Publication Year: 1999, Page(s):29 - 33
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    A nonlinear PID controller is proposed to handle some nonlinear process control problems. In this scheme, the controller uses the system error, the integral of the system error, and the derivative of the system error as its inputs but the mapping from the inputs to the output is nonlinear. The corresponding nonlinear mapping may be specified based on the control requirement. The NPIDC strategy is ... View full abstract»

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  • How piecewise affine neural networks can generate a stable nonlinear control

    Publication Year: 1999, Page(s):23 - 28
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    Deals with the difficulty of designing an artificial neural network to control a nonlinear dynamical system. It is known that controlling a dynamical system that is not exactly modelled is difficult. The capabilities of artificial neural networks in the area of nonlinear control have been explored for instance by Jagannarthan (1998) and Sontag (1997). We have shown (1998) that piecewise affine per... View full abstract»

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  • Neural approximators for the solution of decentralized optimal control problems

    Publication Year: 1999, Page(s):179 - 184
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    There are many situations, in engineering and economic systems, where several decision makers (DMs), sharing different information patterns, cooperate to the accomplishment of a common goal. We address an approximate technique consisting in constraining the control functions to have a fixed structure (we chose feedforward neural networks). We are then able to obtain solutions that approximate the ... View full abstract»

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  • Sensor-based controlling of the objects pose for multifinger grippers

    Publication Year: 1999, Page(s):254 - 258
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    In the field of research and development of grippers in object-handling applications, many research results in improving grippers performances have been achieved, and many kinds of multifinger grippers have been developed. By using multifinger grippers, it is possible to grasp different objects of different shapes without changing grippers; and most importantly, it can manipulate the grasped objec... View full abstract»

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  • Controller synthesis for hybrid systems with linear vector fields

    Publication Year: 1999, Page(s):17 - 22
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    Presents a method which can synthesize a trajectory to drive a hybrid system with linear vector fields from an initial state to a final state. All the possible states and evolutions of the process are modeled by a hybrid automata. Then a controllability analysis is carried out in state-space with geometric calculus and a controller which fulfils the specifications is synthesized View full abstract»

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  • Centralized, decentralized, and overlapping control designs for a segmented telescope

    Publication Year: 1999, Page(s):173 - 178
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    We consider the centralized, decentralized and overlapping approaches to designing controllers for shape control of a segmented telescope. In each case, we design controllers using the H robust control approach. In the centralized control case, the disturbances are rejected over a wide frequency range and all performance requirements are met. The order of the centralized control... View full abstract»

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  • Graphical languages for intelligent process control applications

    Publication Year: 1999, Page(s):219 - 224
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB)

    An overview is given of two graphical control languages for supervisory control applications implemented in G2. The languages are used for model-based diagnosis and sequential control applications View full abstract»

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  • A neural network based vision system for 3D motion estimations

    Publication Year: 1999, Page(s):248 - 253
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB)

    An active vision approach is proposed for 3D object motion estimation. The motion estimation problem is formulated as the problem of planning the poses of a moving vision system so as to minimize the estimation uncertainties. A Kalman filter is employed to estimate the object motion parameters. The Riccati equation of the filter is developed as a function of the vision system control parameters, n... View full abstract»

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  • Hybrid automata models in continuous-linear hybrid systems analysis

    Publication Year: 1999, Page(s):11 - 16
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (416 KB)

    We introduce some analysis tools for a class of continuous-linear hybrid systems. The continuous-linear term is used in the sense of system theory and it is in this sense that continuous-linear hybrid automata are defined. Using the defined automaton representation, we provide an analytical formulation of the system dynamic behavior. With the analysis results, dynamic properties for reachability a... View full abstract»

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  • Two problems in decentralized adaptive control using neural networks

    Publication Year: 1999, Page(s):167 - 172
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    Discusses two problems in the decentralized adaptive control of the outputs of a discrete-time dynamical system using multiple controllers, when each controller has only partial information concerning the overall system. The first problem is one of achieving exact tracking when the controllers communicate to each other their control decisions but not their measured system outputs. The second probl... View full abstract»

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  • Multi-resolution techniques in the rules-based intelligent control systems: a universal approximation result

    Publication Year: 1999, Page(s):213 - 218
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (440 KB)

    One of the main problems of fuzzy control is that the number of rules which are necessary to represent a given control strategy with a given accuracy, grows exponentially with the increase in accuracy. As a result, for reasonable accuracy and a reasonable number of input variables, a great number of rules is sometimes needed. In this paper, we start to solve this problem by pointing out that tradi... View full abstract»

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  • Emotion-based control systems

    Publication Year: 1999, Page(s):64 - 66
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    The relevance of the model presented to the control and the supervision of systems lies in the fact that, in this context, it is very important to respond quickly and efficiently to unexpected situations, by learning associations between current situations and control strategies. The inputs and the state variables of a system can be considered as stimuli to feed a double processing system. The cog... View full abstract»

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  • Intelligent scheduling of chemical plants: a constraint programming approach

    Publication Year: 1999, Page(s):242 - 247
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    The applicability of constraint programming to the task of scheduling batch and mixed batch/continuous plants in the chemical industry is investigated. The main features of constraint programming are described, emphasizing possible advantages when applied to the scheduling task. Based on the results, an architecture for a reactive scheduling system is outlined. The underlying strategy for developi... View full abstract»

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  • Temporal Petri nets, a modeling and control tool of manufacturing lines

    Publication Year: 1999, Page(s):7 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    Two basic tools are used in our approach. Firstly, temporal Petri nets provide elegant models for timed systems. The obtained models are general, including any structure type such as synchronizations and conflicts. Secondly, timed automata constitute a formal framework for proofs with the objective of performance evaluation and the synthesis of the control laws. These topics correspond to our curr... View full abstract»

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  • Comparison of relational methods and attribute-based methods for data mining in intelligent systems

    Publication Year: 1999, Page(s):162 - 166
    Cited by:  Papers (1)  |  Patents (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (348 KB)

    Most of the data mining methods in real-world intelligent systems are attribute-based machine learning methods such as neural networks, nearest neighbors and decision trees. They are relatively simple, efficient, and can handle noisy data. However, these methods have two strong limitations: (1) a limited form of expressing the background knowledge and (2) the lack of relations other than “ob... View full abstract»

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  • Multi-resolution methods in non-destructive testing of aerospace structures and in medicine

    Publication Year: 1999, Page(s):207 - 212
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (516 KB)

    Thorough testing of a huge aerospace structures results in a large amount of data, and long processing time. To decrease the processing time, we use a “multi-resolution” technique, in which we first separate the data into data corresponding to different vibration modes, and then combine these data together. We show how a general methodology for choosing the optimal uncertainty represen... View full abstract»

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  • Meaning for observers and agents

    Publication Year: 1999, Page(s):435 - 440
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    Shannon and Weaver (1963) formalized the notion of information transmission rate and capacity for pre-existing channels. Wittgenstein (1968) insisted that linguistic meaning be defined in terms of use in language games. Peirce (1965) realized the importance of sign, signified, and interpretant in processes of semiosis. In particular, the connection between sign and signified does not take place in... View full abstract»

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  • Emotions as forms of consciousness

    Publication Year: 1999, Page(s):58 - 63
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB)

    In the physico-chemical, the biological, and the conceptual realms, energy processes (understood as work or heat transfers) are thermodynamically both conservative and generative. We observe a conservation of form and process and an entropic heterogeneity of form and process. The result of this hierarchical interaction is information. By information, the author understands matter or energy that is... View full abstract»

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  • Learning real-time stereo vergence control

    Publication Year: 1999, Page(s):272 - 277
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (572 KB)

    Online learning robotic systems have many desirable properties. This work contributes a reinforcement learning framework for learning a time-constrained closed-loop control policy. The task is to verge the two cameras of a stereo vision system to foveate on the same world feature, within a limited number of perception-action cycles. Online learning is beneficial in at least the following ways: 1) ... View full abstract»

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  • Knowledge based process control

    Publication Year: 1999, Page(s):237 - 241
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    A methodology for modeling and simulating a continuous process is presented. This is done by using a knowledge based approach. This approach is not only based on production rules but include also the mathematical model of the process. The results are compared to those from some classical continuous system simulators. The advantage of the use of the knowledge based system is that a reasoning level ... View full abstract»

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  • On the supervisory synthesis for distributed control of discrete event dynamic systems with communication delays

    Publication Year: 1999, Page(s):1 - 6
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB)

    The supervisory control theory, first introduced by Ramadge and Wonham (1987), is based on an automata concept. The aim of this theory is to synthesize a supervisor in order to respect some logic specifications. Control systems, however, are often distributed, for quite obvious reasons of performance, fault tolerance, and distribution of sensors and actuators to different physical locations. Thus,... View full abstract»

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