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Center for Intelligent Control Systems (U.S.)

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Works: 479 works in 653 publications in 1 language and 1,213 library holdings
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Publications about Center for Intelligent Control Systems (U.S.) Publications about Center for Intelligent Control Systems (U.S.)
Publications by Center for Intelligent Control Systems (U.S.) Publications by Center for Intelligent Control Systems (U.S.)
Most widely held works about Center for Intelligent Control Systems (U.S.)
 
Most widely held works by Center for Intelligent Control Systems (U.S.)
Output stabilizability of discrete event dynamic systems by Cüneyt M Özveren ( Book )
4 editions published in 1989 in English and held by 8 WorldCat member libraries worldwide
The study of the control of Discrete Event Dynamic Systems (DEDS) was been introduced by Wonham, Ramadge, et al. This work prompted a considerable response by other researchers, exploring a variety of alternate formulations and paradigms. In our work, we have had in mind the development of a regulator theory for DEDS. In another paper, we develop notions of stability and stabilizability for DEDS while in second, we focus on the questions of observability and state reconstruction, using what might be thought of as an intermittent observation model. In this paper, we combine our work on stabilizability and observability to address the problem of stabilization by dynamic output feedback under partial observations. Our presentation here is necessarily brief
Kalman filtering and Riccati equations for descriptor systems by Ramine Nikoukhah ( Book )
4 editions published between 1990 and 1991 in English and held by 8 WorldCat member libraries worldwide
In this paper we consider a general formulation of a discrete-time filtering problem for descriptor systems. It is shown that the nature of descriptor systems leads directly to the need to examine singular estimation problems. Using a "dual approach" to estimation we derive a so-called "3-block" form for the optimal filter and a corresponding 3-block Riccati equation for a general class of time-varying descriptor models which need not represent a well-posed system in that the dynamics may be either over- or under-constrained. Specializing to the time-invariant case we examine the asymptotic properties of the 3-block filter, and in particular analyze in detail the resulting 3-block algebraic Riccati equation, generalizing significantly the results in [23, 28, 33]. Finally, the noncausal nature of discrete-time descriptor dynamics implies that future dynamics may provide some information about the present state. We present a modified form for the descriptor Kalman filter that takes this information into account
Aggregation and multi-level control in discrete event dynamic systems by Cüneyt M Özveren ( Book )
4 editions published between 1989 and 1990 in English and held by 8 WorldCat member libraries worldwide
In this paper we consider the problem of higher-level aggregate modelling and control of discrete-event dynamic systems (DEDS) modelled as finite state automata in which some events are controllable, some are observed, and some represent events to be tracked. The higher-level models considered correspond to associating specified sequences of events in the original system to single macroscopic events in the higher- level model. We also consider the problem of designing a compensator that can be used to restrict microscopic behavior so that the system will only produce strings of these primitive sequences or tasks. With this lower level control in place we can construct higher-level models which typically have many fewer states and events than the original system. Also, motivated by applications such as flexible manufacturing, we address the problem of constructing and controlling higher-level models of interconnections of DEDS. This allows us to "slow down" the combinatorial explosion typically present in computations involving interacting automata
Modeling and estimation of multiresolution stochastic processes by Alan S Willsky ( Book )
3 editions published between 1989 and 1991 in English and held by 7 WorldCat member libraries worldwide
In this paper, we provide an overview of the several components of a research effort aimed at the development of a theory of multiresolution stochastic modeling and associated techniques for optimal multiscale statistical signal and image processing. As we describe, a natural framework for developing such a theory is the study of stochastic processes indexed by nodes on lattices or trees in which different depths in the tree or lattice correspond to different spatial scales in representing a signal or image. In particular we will see how the wavelet transform directly suggests such a modeling paradigm. This perspective then leads directly to the investigation of several classes of dynamic models and related notions of "multiscale stationarity" in which scale plays the role of a time-like variable. In this paper we focus primarily on the investigation of models on homogeneous trees. In particular we describe the elements of a dynamic system theory on trees and introduce two notions of stationarity. One of these leads naturally to the development of a theory of multiscale autoregressive modeling including a generalization of the celebrated Schur and Levinson algorithms for order-recursive model building. The second, weaker motion of stationarity leads directly to a class of state space models on homogeneous trees. We describe several of the elements of the system theory for such models and also describe the natural, extremely efficient algorithmic structures for optimal estimation that these models suggest: one class of algorithms has a multigrid relaxation structure; a second uses the scale-to-scale whitening property of wavelet transforms for our models; and a third leads to a new class of Riccati equations involving the usual predict and update steps and a new "fusion" step as information is propagated from fine to coarse scales. As we will see, this framework allows us to consider in a very natural way the fusion of data from sensors with differing resolution
Multiscale representations of Markov random fields by M. R Luettgen ( Book )
4 editions published in 1992 in English and held by 6 WorldCat member libraries worldwide
Global models of natural boundaries : theory and applications by Alan Paul Knoerr ( Book )
2 editions published in 1988 in English and held by 6 WorldCat member libraries worldwide
Auction algorithms for network flow problems : a tutorial introduction by Dimitri P Bertsekas ( Book )
3 editions published between 1991 and 1992 in English and held by 6 WorldCat member libraries worldwide
An optimal multigrid algorithm for continuous state discrete time stochastic control by Chee-Seng Chow ( Book )
3 editions published between 1988 and 1989 in English and held by 6 WorldCat member libraries worldwide
Recursive and iterative estimation algorithms for multi-resolution stochastic processes by K. C Chou ( Book )
3 editions published in 1989 in English and held by 6 WorldCat member libraries worldwide
Local tests for consistency of support hyperplane data ( Book )
2 editions published in 1993 in English and held by 5 WorldCat member libraries worldwide
Scaling results for the variational approach to edge detection by Thomas J Richardson ( Book )
2 editions published in 1991 in English and held by 5 WorldCat member libraries worldwide
In another paper the first author presented an asymptotic result concerning the Mumford-Shah functional. In this paper an algorithm is presented which implements the scaling suggested by the asymptotic results to obtain accurate localization of edges even when only large scale edges are being detected. An approximation to E is also considered and the implications of the asymptotic results to this functional are also examined
Geometric optimization methods for adaptive filtering by Stephen Thomas Smith ( Book )
2 editions published in 1993 in English and held by 5 WorldCat member libraries worldwide
Singular perturbations in manufacturing by H. Mete Soner ( Book )
2 editions published in 1991 in English and held by 5 WorldCat member libraries worldwide
Abstract: "We present an asymptotic analysis for a large class of stochastic optimization problems arising in manufacturing. A typical example of the problems we consider, is a production planning problem with random capacity and demand. In this example we assume that the capacity of the system fluctuates faster than the other quantities. The general model we consider also has a fast controlled Markov process in its state description. Using the difference in the time scales of different quantities, we simplify the problem by 'averaging' out the fast process. Then asymptotically optimal strategies are constructed from the optimal solutions of the limiting problems. The proofs of these results use the theory of viscosity solutions to dynamic programming equations. However, the formal construction of the asymptotically optimal strategies does not require the knowledge of this theory."
Convergence of asynchronous matrix iterations subject to diagonal dominance by Paul Tseng ( Book )
2 editions published in 1989 in English and held by 5 WorldCat member libraries worldwide
Reconstructing ellipsoids from projections by William Clement Karl ( Book )
2 editions published in 1992 in English and held by 5 WorldCat member libraries worldwide
A stochastic modeling approach to multiscale signal processing by Kenneth C Chou ( Book )
2 editions published in 1991 in English and held by 5 WorldCat member libraries worldwide
Problems of computational and information complexity in machine vision and learning by Sanjeev R Kulkarni ( Book )
2 editions published in 1991 in English and held by 5 WorldCat member libraries worldwide
Image processing with multiscale stochastic models by Mark R Luettgen ( Book )
2 editions published in 1993 in English and held by 4 WorldCat member libraries worldwide
Complexity issues dealing with networks that compute Boolean functions by Upendra Vasant Chaudhari ( Book )
2 editions published in 1993 in English and held by 4 WorldCat member libraries worldwide
A fast multiscale tomographic reconstruction method from complete but possibly noisy projection data by Michael V Bhatia ( Book )
2 editions published in 1993 in English and held by 4 WorldCat member libraries worldwide
 
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Alternative Names
Brown University. Center for Intelligent Control Systems
CICS
Harvard University. Center for Intelligent Control Systems
Massachusetts Institute of Technology. Center for Intelligent Control Systems
Languages
English (53)