WorldCat Identities


Works: 406 works in 443 publications in 1 language and 448 library holdings
Classifications: TK7855.M41,
Publication Timeline
Naval C3 Distributed Tactical Decision Making( Book )

8 editions published between 1986 and 1988 in English and held by 8 WorldCat member libraries worldwide

The objective of the research is to address analytical land computational issues that arise in the modeling, analysis and design of distributed tactical decisionmaking. The research plan has been organized into two highly interrelated research areas: (a) Distributed Tactical Decision Processes; and (b) Distributed Organization Design. The focus of the first area is the development of methodologies, models, theories and algorithms directed toward the derivation of superior tactical decision, coordination, and communication strategies of distributed agents in fixed organizational structures
Command and control theory by Alexander H Levis( Book )

5 editions published between 1986 and 1989 in English and held by 4 WorldCat member libraries worldwide

The main goal of this research is to start bridging the gap between mathematical theories of command and control and empirical studies. More specifically, the goal is to develop theories on the one hand and to model experimental paradigms on the other, so that realistic problems in command and control (2) can be studied prior to the design of experiments and the collection of relevant data. During this six-month period (March to September 1987) the research effort focused on the integration of the computational and graphical tools to be used in the design of organizations, i.e., the development of CAESAR (Computer-Aided Evaluation of System Architectures) and on the first experiment involving human subjects. (Included in this report is a reprint: Experimental Investigation of the Bounded Rationality Constraint)
Stochastic and Adaptive Systems by Massachusetts Institute of Technology( Book )

3 editions published between 1979 and 1982 in English and held by 3 WorldCat member libraries worldwide

This research is concerned with various aspects of stochastic and adaptive systems. Topics covered include: non-linear filtering, stochastic control, reliable and robust control system design and implementation of control laws by finite-state sequential machines. (Author)
Asymptotic Orders of Reachability in Perturbed Linear Systems by Cüneyt M Özveren( Book )

2 editions published between 1987 and 1988 in English and held by 2 WorldCat member libraries worldwide

A framework for studying asymptotic orders of reachability in perturbed linear, time-invariant systems is developed. The systems of interest are defined by matrices that have asymptotic expansions in powers of a perturbation parameter about the point 0. The reachability structure is exposed via the Smith form of the reachability matrix. The approach is used to provide insight into the kinds of inputs needed to reach weakly reachable target states, into the structure of high-gain feedback for pole-placement, and into the types of inputs that steer trajectories arbitrarily close to almost (A, B)-invariant subspaces and almost (A, B)-controllability subspaces
Mathematical Software for Linear Control and Estimation Theory( Book )

1 edition published in 1981 in English and held by 2 WorldCat member libraries worldwide

The final report for the project, Mathematical Software for Linear Control and Estimation Theory, includes a list of publications, conference proceedings, and invited talks by the principal investigators. Emphasis throughout the project was placed on interdisciplinary work in control theory, numerical methods suitable for certain control problems and mathematical software to do the frequency response problem. Numerically stable methods were used, and portability of the mathematical software was stressed. (Author)
Annual technical report ... on analysis, estimation and control for perturbed and singular systems and for systems subject to discrete events by Alan S Willsky( Book )

3 editions published between 1987 and 1991 in English and held by 2 WorldCat member libraries worldwide

This report summarizes accomplishments in the research program presently supported by Grant AFOSR-82-0258 over a period from July 1, 1982 to Sept. 30, 1987, with primary emphasis on the accomplishments from July 1, 1986 to Sept 30, 1987. The basic scope of this program is the analysis, estimation, and control of complex systems with particular emphasis on the development of asymptotic methods and theories for nearly singular systems the investigation of theoretical questions related to singular systems and the analysis of complex systems subject to our characterized by sequences of discrete events. These three topics are described in the three sections of this report. Keywords: Algorithms; Estimates; Detection
On the Complexity of Designing Distributed Protocols by Christos H Papadimitriou( Book )

2 editions published in 1982 in English and held by 2 WorldCat member libraries worldwide

We study the complexity of two problems of distributed computation and decision-making. We show that deciding whether two distant agents can arrive at compatible decisions without any communication one agent has three or more alternatives. We also show that minimizing the amount of communication necessary for the distributed computation of a function, when two distant computers receive each a part of the input, is NP-complete. This proves a conjecture due to A. Yao. (Author)
Distributed decision and communication problems in tactical USAF command and control by Alexander H Levis( Book )

3 editions published between 1980 and 1983 in English and held by 2 WorldCat member libraries worldwide

Progress in research on four theoretical problems in tactical Air Force C3 systems is described. The four areas are: C3 system structure of organizational forms, information storage and flow in C3 systems, distributed estimation and distributed decision problems in dynamic missile reassignment strategies
Comments on "bounded error adaptive control" by D Orlicki( Book )

2 editions published between 1983 and 1984 in English and held by 2 WorldCat member libraries worldwide

The purpose of this note is to discuss the model matching performance of the adaptive control algorithm suggested by Peterson and Narenda. (Author)
On the Complexity of Decentralized Decision Making and Detection Problems( Book )

2 editions published between 1984 and 1985 in English and held by 2 WorldCat member libraries worldwide

The authors study the computational complexity of the discrete versions of some simple but basic decentralized decision problems. These problems are variations of the classical 'team decision problem' and include the problem of decentralized detection, whereby a central processor is to select one of two hypotheses, based on 1-bit messages from two non-communicating sensors. Results point to the inherent difficulty of decentralized decision making and suggest that optimality may be an elusive goal. (Author)
A Perspective on Multiaccess Channels by Robert G Gallager( Book )

2 editions published between 1984 and 1985 in English and held by 2 WorldCat member libraries worldwide

The Information Theoretic Approach and the Collision Resolution Approach to Multiaccess Channels are reviewed in terms of the Underlying Communication Problems that both are modelling. We give some perspective on the strengths and weakness of these approaches and argue for the need of a more combined approach focused on coding and decoding techniques. For the last ten years there have been at least three bodies of research on multiaccess channels, each proceeding in virtual isolation from the others and each using totally different models. The objective here is to contrast these bodies of work and to give some perspective on what is needed to provide some unification between the areas. We shall refer to the three areas as collision resolution, multiaccess information theory, and spread spectrum
Human Organizations as Distributed Intelligence Systems by United States( Book )

1 edition published in 1988 in English and held by 2 WorldCat member libraries worldwide

Human decision making organizations can serve as a paradigm for distributed intelligence systems. Elements of a mathematical theory of organizations are presented and used to analyze the behavior of organizations that have to meet stringent requirements with constraints on the cognitive and physical resources available. It is shown how the introduction of decision support systems to aid individual decisionmakers can affect in unforeseen ways system performance
Round Robin Scheduling for Fair Flow Control in Data Communication Networks by Ellen Louise Hahne( Book )

2 editions published in 1986 in English and held by 2 WorldCat member libraries worldwide

This thesis studies a simple strategy for fairly allocating link capacity in a point-to-point packet network with virtual circuit routing. Each link offers its packet transmission slots to its user sessions by polling them in round robin order. In addition, link-by-link window flow control is used to prevent excessive packet queues at the network nodes. As the window size increases, the session throughput rates are shown to approach limits that are perfectly fair the maxmin sense. That is, the smallest session rate in the network is a large as possible and, subject to that constraint, the second-smallest session rate is as large as possible, etc. If each session has evenly spaced packet arrivals or has such heavy demand that packets are always waiting to enter the network, then a finite window size suffices to produce perfectly fair throughout rates. (These properties do not hold if first-come-first-served scheduling is used instead of round robin.)
Martingale Methods in Stochastic Control by M. H. A Davis( Book )

1 edition published in 1979 in English and held by 2 WorldCat member libraries worldwide

The martingale treatment of stochastic control problems is based on the idea that the correct formulation of Bellman's principle of optimality for stochastic minimization problems is in terms of a submartingale inequality: the value function of dynamic programming is always a submartingale and is a martingale under a particular control strategy if and only if that strategy is optimal. Local conditions for optimality in the form of a minimum principle can be obtained by applying Meyer's submartingale decomposition along with martingale representation theorems; conditions for existence of an optimal strategy can also be stated. This paper gives an introduction to these methods and a survey of the results that have been obtained so far, as well as an indication of some shortcomings in the theory and open problems. The martingale approach to some related problems - optimal stopping, impulse control and stochastic differential games - will also be outlined
Convergence and asymptotic agreement in distributed decision problems by John N Tsitsiklis( Book )

2 editions published in 1982 in English and held by 2 WorldCat member libraries worldwide

We consider a distributed team decision problem in which different agents obtain from the environment different stochastic measurements, possibly at different random times, related to the same uncertain random vector. Each agent has the same objective function and prior probability distribution. We assume that each agent can compute an optimal tentative decision based upon his own observation, and that these tentative decisions are communicated and received, possibly at random times, by a subset of other agents. Conditions for asymptotic convergence of each agent's decision sequence and asymptotic agreement of all agents' decisions are derived. (Author)
Status Report on Asymptotic Methods for the Analysis, Estimation, and Control of Stochastic Dynamic Systems( Book )

2 editions published in 1984 in English and held by 2 WorldCat member libraries worldwide

The basic scope of this grant is to carry out fundamental research in the analysis, control, and estimation of complex systems, with particular emphasis on the use of methods of asymptotic analysis and multiple time scales to decompose complex problems into interconnections of simpler ones. During the time period covered by this report, significant progress has been made in several areas, leading to important results and to promising directions for further research. The specific topics covered in this report are: Analysis of Systems Possessing Multiple Time Scales; and Control and Estimation
Dynamic behavior of shortest path routing algorithms for communication networks by Dimitri P Bertsekas( Book )

2 editions published between 1979 and 1980 in English and held by 2 WorldCat member libraries worldwide

Several proposed routing algorithms for store and forward communication networks, including one currently under implementation in the ARPANET, route mesages along shortest paths computed by using some set of link lengths. When these lengths depend on current traffic conditions as they must in an adaptive algorithm, dynamic behavior questions such as stability, convergence, and speed of convergence are of interest. This paper is the first attempt to analyze systematically these issues. It is shown that minimum queuing delay path algorithms tend to exhibit violent oscillatory behavior in the absence of a damping mechanism. Several easily implementable damping schemes are proposed and analyzed by using nonlinear stability theory techniques. (Author)
Robust Identification and Control( Book )

2 editions published in 1998 in English and held by 1 WorldCat member library worldwide

This final report summarizes the research contributions under AFOSR grant No. F49620-95-1-0219. The work covered two major research directions. The first is in the area of robust linear and nonlinear control. In the linear area, a complete computationally-based methodology was developed for designing controllers that can meet multiple performance objectives in both the time and frequency domain. The research culminated in a book on multi-objective control. In the nonlinear area, an alternative to gain-scheduling that requires scheduling in Lyapunov space has been proposed which gives rise to a computational tool for synthesizing controllers with guaranteed stability. In addition, the theory of Neurodynamic programming was developed to handle large-scale nonlinear optimal control problems. This research culminated in another' book on the theory and applications of Neuro-Dynamic programming. The second research direction is in the area of system identification. In that field, a new paradigm was proposed that allows deriving simple low-complexity models from noisy data obtained from complex systems. Within this paradigm, it is shown how to bridge the gap between stochastic and deterministic descriptions of noise. These developments have been shown to play a major role in many application domains
Multiresolution Methods in Systems, Signals, and Images( Book )

3 editions published between 1998 and 2000 in English and held by 1 WorldCat member library worldwide

In this final report we summarize our research accomplishments under this grant: (a) research on our multiresolution estimation methodology to solve a variety of difficult image and large scale data assimilation problems and to extend the theoretical domain of applicability of our methodology considerably to allow for the fusion of multisensor data; (b) the development of several new methods involving synthetic aperture radar (SAR) data including multiresolution segmentation and compression algorithms and an estimation-theoretic approach to moving target SAR image formation; (c) the development of a new nonlinear multiresolution image evolution algorithm that produces extremely robust image segmentations; (d) the development of a new variation on so-called matching pursuit methods with application to robust and stable feature extraction and recognition of objects; and (e) the development of hierarchical and wavelet-based methods for the design of joint detection algorithms for multiple access communication in the presence of highly correlated user signals. In addition a number of significant transitions and interactions resulting from our work are described
Multiresolution signal and system analysis and the analysis and control of discrete-event dynamic systems by Alan S Willsky( )

2 editions published between 1994 and 1996 in English and held by 0 WorldCat member libraries worldwide

In this report we summarize the following research accomplishments: (a) combining our research on inverse problems with our work on the development of multiresolution stochastic models in order to develop novel and very efficient methods for the fusion and inversion of heterogeneous and multiresolution sensor data; (b) developing a significant extension of the use of our scale recursive multiresolution models for the modeling of spatial phenomena based both on a novel application of the concept of canonical correlations in statistics and on relaxing the relationship between variables in our multiresolution representations and the spatial variables they represent; (c) developing multiresolution models for SAR imagery and the use of these models as thesis for new and very effective likelihood feature for the discrimination of man made objects and natural clutter; and (d) developing a new method for signal approximation and feature extraction known as high resolution pursuit that produces stable and physically meaningful features and the application of this method to high range resolution radar data
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English (50)