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Coordination control of discrete-event systems revisited

Jan Komenda, Tomáš Masopust, Jan H. van Schuppen
2014 Discrete event dynamic systems  
In this paper, we revise and further investigate the coordination control approach proposed for supervisory control of distributed discrete-event systems with synchronous communication based on the Ramadge-Wonham  ...  In other words, unless P=NP, it is not possible to find a polynomial algorithm to compute the minimal coordinator with respect to the number of events.  ...  Research of two first authors was supported by RVO: 67985840.  ... 
doi:10.1007/s10626-013-0179-x fatcat:4f7gvrrq4nfk5icp6uqlktehs4

Special issue on recent advances in control of discrete event systems

Antonio Ramírez-Treviño, Manuel Silva, Stéphane Lafortune
2015 Discrete event dynamic systems  
In "Coordination control of discrete-event systems revisited", Jan Komenda and colleagues revise and improve the coordination in supervisory control of distributed discrete event systems with synchronous  ...  This special issue of J-DEDS on Recent Advances in Control of Discrete Event Systems contains 13 papers that cover a wide range of recent advances on the modeling, analysis, control, and optimization of  ...  of Discrete Event Systems.  ... 
doi:10.1007/s10626-015-0210-5 fatcat:jyg5kqgzyfhtvb47m2pgpnblua

Communicating Processes with Data for Supervisory Coordination

Jasen Markovski
2012 Electronic Proceedings in Theoretical Computer Science  
We employ supervisory controllers to safely coordinate high-level discrete(-event) behavior of distributed components of complex systems.  ...  Supervisory controllers observe discrete-event system behavior, make a decision on allowed activities, and communicate the control signals to the involved parties.  ...  This gave rise to supervisory control theory of discrete-event systems [20, 8] that studies automatic synthesis of (discrete-event) models of supervisory control software.  ... 
doi:10.4204/eptcs.91.7 fatcat:rhvxbvqfhrhp5aymg25snttz6u

A bottom-up approach to verification of hybrid model-based hierarchical controllers with application to underwater vehicles

M. O'Connor, S. Tangirala, R. Kumar, S. Bhattacharyya, S. Sznaier, L.E. Holloway
2006 2006 American Control Conference  
INTRODUCTION ybrid systems, those containing both continuous dynamics and discrete transitions, have become the focus of much research in the areas of control and computer science because of their wide  ...  An AUV, like many autonomous systems, contains multiple levels of control that must each satisfy a set of requirements in order to guarantee correctness of the overall system.  ...  In Section II, we briefly revisit the hybrid mission controller architecture for AUVs presented in [1] . Section IV presents a rigorous hybrid system model which formalizes the mission controller.  ... 
doi:10.1109/acc.2006.1657389 fatcat:m6llklxrqrbazfj6s5qjqg4uzm

A Process Algebra for Supervisory Coordination

Jos Baeten, Bert van Beek, Allan van Hulst, Jasen Markovski
2011 Electronic Proceedings in Theoretical Computer Science  
A supervisory controller controls and coordinates the behavior of different components of a complex machine by observing their discrete behaviour.  ...  The main application area of supervisory control that we consider is coordination, referred to as supervisory coordination, and we give an academic and an industrial example, discussing the process-theoretic  ...  This setting covers both the existing deterministic and nondeterministic definition of controllability for discrete-event systems [2] .  ... 
doi:10.4204/eptcs.60.3 fatcat:4im6fplfibb7pnrywdeuxzvhca

The successes and challenges of hospital to home transitions

Lauren G. Solan, Sumant R. Ranji, Samir S. Shah
2014 Journal of Hospital Medicine  
Investigators found that intervention patients were less likely to be readmitted or revisit the ED as compared with controls.  ...  days to 16.7% in the intervention group, compared with 22.5% in the control group. 6 One of the pediatric studies highlighted in the review by Auger et al. achieved a decrease in 14-day ED revisits  ... 
doi:10.1002/jhm.2176 pmid:24616328 fatcat:rgfvdpbznze2pjlpeukhncxmom

Rapid coordination of effective learning by the human hippocampus [article]

James E. Kragel, Stephan Schuele, Stephen VanHaerents, Joshua M. Rosenow, Joel L. Voss
2020 bioRxiv   pre-print
The hippocampus thus supports short-term memory processing that coordinates perception, attention, and behavior in the service of effective spatiotemporal learning.  ...  These findings motivate re-interpretation of long-term memory disorders as reflecting loss of the organizing influence of hippocampal short-term memory on learning.  ...  This work was supported in part by National Institute of Neurological Disorders and Stroke grant T32NS047987. AUTHOR CONTRIBUTIONS  ... 
doi:10.1101/2020.10.20.347831 fatcat:lc33xvjsmvcibjf6od4tlegzj4

Resilience and complexity in a maritime service supply chain's everyday operation [chapter]

2016 Service Supply Chain Systems  
scheme of some commercial discrete event simulation software systems.  ...  accounting in the new paradigm of service -Managing service supply chains in the big data era: A system of systems perspective -Evaluation of discrete event simulation software to design and assess service  ... 
doi:10.1201/b20894-16 fatcat:3qtnojdfkve3ble32fofzihrny

Character-Focused Narrative Generation for Execution in Virtual Worlds [chapter]

Mark O. Riedl, R. Michael Young
2003 Lecture Notes in Computer Science  
Because narrative plays such a key role in the understanding of events in our daily lives, the ability to generate narrative can be of great use in virtual reality systems whose purpose is to entertain  ...  Many systems are capable of achieving either one or the other; we present a new approach to narrative generation in the Actor Conference system, which is capable of generating narratives with both plot  ...  -are controlled and coordinated with one another to provide a coherent storyline.  ... 
doi:10.1007/978-3-540-40014-1_6 fatcat:piywoxyljzbkvpn6cng4wfm72i

Implementation and impact analysis of a transitional care pathway for patients presenting to the emergency department with cardiac-related complaints

Gabriel E. Soto, Elizabeth A. Huenefeldt, Masey N. Hengst, Arlo J. Reimer, Shawn K. Samuel, Steven K. Samuel, Stephen J. Utts
2018 BMC Health Services Research  
Although a large proportion of cardiac patients can be discharged with appropriate outpatient follow-up, inadequate care coordination often leads to high revisit rates or unnecessary admissions.  ...  Enrollment in the transitional care pathway was associated with a reduced risk of cardiac-related ED revisits (RR 0.22, p < 0.0001), all-cause ED revisits (RR 0.30, p < 0.0001), and admission at second  ...  Acknowledgments The authors thank the physician, nursing, and administrative leaders of SoutheastHEALTH for their support in making this study possible.  ... 
doi:10.1186/s12913-018-3482-2 pmid:30165843 fatcat:gsgnjp3te5agzdtx5obs4fde6a

Distributed control of a free-floating underwater manipulation system [chapter]

K. Kapellos, D. Simon, S. Granier, V. Rigaud
1998 Lecture notes in control and information sciences  
Robotic applications are real-time dynamical systems which intimately combine di erent components ranging from high-level decision making and discrete-event controllers to low-level feedback loops.  ...  We examine this coupling in the case of an architecture where discrete-event and low-level controllers are spatially distributed and we propose, in the framework of the Orccad methodology, di erent methods  ...  Robot-Procedure Discrete-Event Controller The RP discrete-event controller is aimed both to coordinate RTs and RPs in order to achieve a prede ned behavior and to o er, as for the RT, the adequate event  ... 
doi:10.1007/bfb0112994 fatcat:gxs7ijx4q5flldyyk2mvbsrhiy

Introduction to Hybrid Systems [chapter]

Michael S. Branicky
2005 Handbook of Networked and Embedded Control Systems  
Such networked control systems (NCSs) are an important class of hybrid control systems [40] .  ...  The hybrid nature inherent in embedded control is further complicated by (i) the asynchronous or event-driven nature of data transmission, due to sampling schemes, varying transmission delay, and packet  ...  For example, they may be coordinated by a cruise control system that accelerates and decelerates under different profiles.  ... 
doi:10.1007/0-8176-4404-0_5 fatcat:dkmjh424mjdpjduo7pzq4k3e6e

Actors Revisited for Time-Critical Systems

Marten Lohstroh, Martin Schoeberl, Andrés Goens, Armin Wasicek, Christopher Gill, Marjan Sirjani, Edward A. Lee
2019 Proceedings of the 56th Annual Design Automation Conference 2019 on - DAC '19  
In this paper we propose an actor-oriented programming model with a semantic notion of time and a deterministic coordination semantics based on discrete events to exercise precise control over both the  ...  computational and timing aspects of the system behavior.  ...  work in this paper was supported in part by the National Science Foundation (NSF), award #CNS-1836601 (Reconciling Safety with the Internet) and the iCyPhy Research Center (Industrial Cyber-Physical Systems  ... 
doi:10.1145/3316781.3323469 dblp:conf/dac/LohstrohSGWGSL19 fatcat:ofc7kgwhq5h65fp3jnu5q2jyqa

Implicit numerical integration for the simulation and control of a non-smooth system with resets

Olivier Huber, Harshal B. Oza
2016 2016 IEEE 55th Conference on Decision and Control (CDC)  
The contribution lies in attaining existence of discretization solutions in the presence of the Zeno mode of impacts.  ...  The results of this paper utilize the implicit numerical integration schemes of non-smooth systems to the systems with resets via employing the method of Zhuravlev-Ivanov transformation.  ...  Vincent Acary for discussions about the discretization of nonsmooth systems. The second author thanks Dr. Bernard Brogliato, Dr. Yury Orlov and Dr.  ... 
doi:10.1109/cdc.2016.7799277 dblp:conf/cdc/HuberO16 fatcat:i3xrjqw4ujhnfmztwqupr27h7u

Revisiting Global Health Security Measures in COVID 19 Pandemic

Suneela Garg, Nidhi Bhatnagar, Ekta Arora, Pradeep Aggarwal
2021 Indian Journal of Community Health  
Coordination mechanisms must be pre-established for diagnostics, therapeutics and research as emergencies often lead to competition and shortage of resources.  ...  Thus, activities supporting epidemic and pandemic preparedness are needed to minimize vulnerability to acute public health events.  ...  between the health system and health security is required to bring coordination between Universal Health Coverage and Global Health Security  ... 
doi:10.47203/ijch.2021.v33i02.035 fatcat:dwqaxumk3zajfedo3rmy3vg76e
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