scholarly journals Probabilistic Message Passing for Decentralized Control of Stochastic Complex Systems

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 184707-184717 ◽  
Author(s):  
Randa Herzallah
Keyword(s):  
Complex Systems ◽  
Decentralized Control ◽  
Message Passing

scholarly journals Probabilistic Message Passing for Decentralized Control of Stochastic Complex Systems

2020 ◽  
Author(s):  
Randa Herzallah
Keyword(s):  
Complex System ◽  
Dynamical Systems ◽  
Complex Systems ◽  
Decentralized Control ◽  
Message Passing ◽  
Density Functions ◽  
Additional Contribution ◽  
Probabilistic Framework ◽  
Marginal Density ◽  
Theoretical Developments

<pre>This paper proposes a novel probabilistic framework for the design of probabilistic message passing mechanism for complex and large dynamical systems that are operating and governing under a decentralized way. The proposed framework considers the evaluation of probabilistic messages that can be passed between mutually interacting quasi-independent subsystems that will not be restricted by the assumption of homogeneity or conformability of the subsystems components. The proposed message passing scheme is based on the evaluation of the marginal density functions of the states that need to be passed from one subsystem to another. An additional contribution is the development of stochastic controllability analysis of the controlled subsystems that constitute a complex system. To facilitate the understanding and the analytical analysis of the proposed message passing mechanism and the controllability analysis, theoretical developments are demonstrated on linear stochastic Gaussian systems. </pre>

scholarly journals Probabilistic Message Passing for Decentralized Control of Stochastic Complex Systems

2020 ◽  
Author(s):  
Randa Herzallah
Keyword(s):  
Complex System ◽  
Dynamical Systems ◽  
Complex Systems ◽  
Decentralized Control ◽  
Message Passing ◽  
Density Functions ◽  
Additional Contribution ◽  
Probabilistic Framework ◽  
Marginal Density ◽  
Theoretical Developments

<pre>This paper proposes a novel probabilistic framework for the design of probabilistic message passing mechanism for complex and large dynamical systems that are operating and governing under a decentralized way. The proposed framework considers the evaluation of probabilistic messages that can be passed between mutually interacting quasi-independent subsystems that will not be restricted by the assumption of homogeneity or conformability of the subsystems components. The proposed message passing scheme is based on the evaluation of the marginal density functions of the states that need to be passed from one subsystem to another. An additional contribution is the development of stochastic controllability analysis of the controlled subsystems that constitute a complex system. To facilitate the understanding and the analytical analysis of the proposed message passing mechanism and the controllability analysis, theoretical developments are demonstrated on linear stochastic Gaussian systems. </pre>

Decentralized control of complex systems

Automatica ◽  
1993 ◽  
Vol 29 (2) ◽  
pp. 570-571
Author(s):  
Renhou Li
Keyword(s):  
Complex Systems ◽  
Decentralized Control

Autonomous Decentralized Control

2001 ◽  
Author(s):  
Dragoslav D. Šiljak ◽  
Dušan M. Stipanović
Keyword(s):  
Complex Systems ◽  
Decentralized Control ◽  
Closed Loop ◽  
Communication Overhead ◽  
Control Law ◽  
Interconnected System ◽  
Output Control ◽  
Structural Perturbations ◽  
Decentralized Controllers ◽  
Output Information

Abstract A decentralized control law is called autonomous if the resulting closed-loop interconnected system is connectively stable, that is, the system remains stable despite structural perturbations whereby subsystems are disconnected and again connected in an unpredictable way during operation. The objective of the paper is to propose an LMI scheme for design of autonomous decentralized controllers and observers for output control of complex systems. An interesting feature of the proposed observer-based controllers is that they do not impose any communication overhead since only the locally available output information is required.

Asynchronous Message-Passing and Inter-Application Communication Software for Process Improvement in Complex Systems

2014 ◽  
Vol 4 (4) ◽  
pp. 36-50
Author(s):  
Darko Galinec ◽  
Ljerka Luić
Keyword(s):  
Complex Systems ◽  
Message Passing ◽  
Data Exchange ◽  
Heterogeneous Data ◽  
Application Systems ◽  
Message Oriented Middleware ◽  
Business Functions ◽  
Communication Software ◽  
Control And Management ◽  
Scale Control

Complex systems nowadays are usually supported by previously developed or inherited application systems, which have been developed on the basis of business functions standard model. Such application systems cover particular business fields, however, since they have been developed in an independent and uncoordinated way, there are modest possibilities of interacted automated data exchange because of heterogeneous data. Because of increasing data exchange needs, enforcement of development and upgrade of programmatic procedures is required. In this connection it is necessary to find ways and means to integrate all existing application systems in given circumstances and render possible exchange and usage of all needed data in a reliable and consistent way. The problem can be solved in different ways. Asynchronous message-passing and inter-application communication software appliance imply commencement of automated data exchange among existing organizations application systems, providing for full scale control and management of mutually exchangeable data, internally as well as externally. In this connection contributing model of the running application systems integrated by means of Message-Oriented Middleware (MOM) of the complex system has been created.

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