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Wyświetlanie 1-7 z 7
Tytuł:
Model zarządzania ryzykiem z wykorzystaniem systemów wieloagentowych
Model of management of risk with use multiagent system
Autorzy:
Halikowska, A.
Wilimowska, Z.
Powiązania:
https://bibliotekanauki.pl/articles/339909.pdf
Data publikacji:
2012
Wydawca:
Polskie Towarzystwo Zarządzania Produkcją
Tematy:
zwrot z inwestycji
ryzyko
zarządzanie ryzykiem
system wieloagentowy
agent
return on investment
risk
risk management
multi-agent system
Opis:
The globalization of world economies, global changes in economic conditions in the world today - the increasing volatility of commodity prices, exchange rates, interest rates heighten the risk of running business activity. It requires considering the impact of risk on decisions effects. Variability and complexity of the environment mean that the risk can be considered as a common factor associated with almost any activity. Risk should not be considered only in terms of threat, as it often creates opportunities that are inspiration of human action. Therefore it needs to be considered as one of determinants of entrepreneurship. It contributes to carrying out research, creation of new theories and attempting their application in practice. Thus it can be regarded as a source of progress and activation, and therefore it can be considered as a useful factor - under condition that it can be inspected and controlled. Enterprise management system performs, among other things, option of risk management. Classical methods of risk management are largely based on knowledge, ideas and preferences of decision maker. Under this approach it is very easy to make errors in investment evaluation. Very often such errors may lead the company into bankruptcy. The use of multi-agent systems in risk management will minimize the number of wrong decisions resulting from incorrect calculations and lack of objectivity of the decision maker. The use of multi-agent systems in management of investment risk, allows to create the database. The information stored in it can be used by users of the system in the future. It is worth noting that, thanks to usage of self-learning module by the system over time, the system becomes more and more independent. This approach is common to contemporary theories that focus on developing models to help decision-makers not only make decisions but also are able to show the effects of those decisions. In modern models of investment risk management it should be considered taking into account the different sources of risk. This follows from the fact that in modern approach the decision maker first must have knowledge of the way the company works. On this basis, it is able to, not only decide on investment, but also suggest some improvements in the enterprise risk management. A similar approach is presented in the model proposed in the article. To summarize, the proposed solution completely fulfills the requirements of modern models for managing risk.
Źródło:
Zarządzanie Przedsiębiorstwem; 2012, 15, 2; 2-14
1643-4773
Pojawia się w:
Zarządzanie Przedsiębiorstwem
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Intelligent city lighting supported by graph-based multiagent system
Inteligentny system oświetlenia miejskiego wspomagany przez system wieloagentowy oparty na grafach
Autorzy:
Sędziwy, A.
Kotulski, L.
Powiązania:
https://bibliotekanauki.pl/articles/282172.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
intelligent lighting
multi-agent system
graph
inteligentne oświetlenie
system wieloagentowy
graf
Opis:
The growing costs of energy and environmental care stimulate the development of technologies reducing the energy usage. In this paper we discuss the case of an intelligent city lighting system which acts towards fitting the actual enyironment needs related to lighting. It is accomplished by performing some actions when an enyironment state ehanges but also by predieting the state ehanges on the basis of data proyided by sensors. The problem complexity requires using formal model of a system enabling a problem decomposition and processing parallelization.
Rosnące koszty energii, a także troska o środowisko naturalne stymulują rozwój technologii zmniejszających zużycie energii. W artykule dyskutowany jest inteligentny system oświetlenia miejskiego, którego celem jest dostosowywanie pracy oświetlenia do aktualnych potrzeb. Osiąga się to przez podejmowanie odpowiednich akcji w warunkach zmiany stanu środowiska, ale także przez predykcję jego stanu, na podstawie otrzymywanych danych sensorycznych. Złożoność obliczeniowa tak postawionego zadania sterowania wymaga użycia formalnego modelu systemu, pozwalającego na dekompozycję problemu i zrównoleglenie obliczeń.
Źródło:
Automatyka / Automatics; 2013, 17, 1; 103-114
1429-3447
2353-0952
Pojawia się w:
Automatyka / Automatics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Event-triggered cooperative control for high-order nonlinear multi-agent systems with finite-time consensus
Autorzy:
Gong, Shiyin
Zheng, Meirong
Hu, Jing
Zhang, Anguo
Powiązania:
https://bibliotekanauki.pl/articles/24200691.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
multiagent system
cooperative control
event triggered control
neuroadaptive control
prescribed performance
system wieloagentowy
sterowanie wyzwalane zdarzeniami
sterowanie neuroadaptacyjne
Opis:
An event-triggered adaptive control algorithm is proposed for cooperative tracking control of high-order nonlinear multiagent systems (MASs) with prescribed performance and full-state constraints. The algorithm combines dynamic surface technology and the backstepping recursive design method, with radial basis function neural networks (RBFNNs) used to approximate the unknown nonlinearity. The barrier Lyapunov function and finite-time stability theory are employed to prove that all agent states are semi-globally uniform and ultimately bounded, with the tracking error converging to a bounded neighborhood of zero in a finite time. Numerical simulations are provided to demonstrate the effectiveness of the proposed control scheme.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2023, 33, 3; 439--448
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Neuro-adaptive cooperative control for high-order nonlinear multi-agent systems with uncertainties
Autorzy:
Peng, Cheng
Zhang, Anguo
Li, Junyu
Powiązania:
https://bibliotekanauki.pl/articles/2055174.pdf
Data publikacji:
2021
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
multiagent system
radial basis function
RBF neural network
sliding mode control
cooperative control
system wieloagentowy
radialna funkcja bazowa
sieć neuronowa RBF
sterowanie ślizgowe
Opis:
The consensus problem for a class of high-order nonlinear multi-agent systems (MASs) with external disturbance and system uncertainty is studied. We design an online-update radial basis function (RBF) neural network based distributed adaptive control protocol, where the sliding model control method is also applied to eliminate the influence of the external disturbance and system uncertainty. System consensus is verified by using the Lyapunov stability theorem, and sufficient conditions for cooperative uniform ultimately boundedness (CUUB) are also derived. Two simulation examples demonstrate the effectiveness of the proposed method for both homogeneous and heterogeneous MASs.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2021, 31, 4; 635--645
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Decentralized multi-agent formation control with pole-region placement via cone-complementarity linearization
Autorzy:
González, Antonio
Sala, Antonio
Armesto, Leopoldo
Powiązania:
https://bibliotekanauki.pl/articles/2172117.pdf
Data publikacji:
2022
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
multiagent autonomous system
formation control
linear matrix inequalities
cone complementarity linearization
system wieloagentowy
sterowanie formacją
liniowe nierówności macierzowe
Opis:
An output-feedback decentralised formation control strategy is pursued under pole-region constraints, assuming that the agents have access to relative position measurements with respect to a set of neighbors in a graph describing the sensing topology. No communication between the agents is assumed; however, a shared one-way communication channel with a pilot is needed for steering tasks. Each agent has a separate copy of the same controller. A virtual structure approach is presented for the formation steering as a whole; actual formation control is established via cone-complementarity linearization algorithms for the appropriate matrix inequalities. In contrast to other research where only stable consensus is pursued, the proposed method allows us to specify settling-time, damping and bandwidth limitations via pole regions. In addition, a full methodology for the decoupled handling of steering and formation control is provided. Simulation results in the example section illustrate the approach.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2022, 32, 3; 415--428
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi-agent Approach to Production Scheduling in Foundries
Autorzy:
Duda, J.
Stawowy, A.
Powiązania:
https://bibliotekanauki.pl/articles/380130.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
information technology
foundry industry
production planning
production scheduling
multiagent approach
technologia informatyczna
przemysł odlewniczy
planowanie produkcji
harmonogramowanie produkcji
system wieloagentowy
Opis:
The paper describes a complete framework that uses a multi-agent approach for production scheduling in a foundry. Different types of autonomous agents have been designed, each playing a different role in the supply chain management of the fodundry, along with their responsibility and behavior in the system. In order to generate a proper and reliable schedule the agents negotiate with each other by sending messages compliant to FIPA ACL standard. A prototype of the system has been implemented in JADE and allowed to conduct preliminary simulation of the system. Although some agents some agents have been omitted in the prototype, it was possible to verify the main assumptions of the system, as well as, to indicate and discuss potential problems with its implementation into production practice.
Źródło:
Archives of Foundry Engineering; 2015, 15, 2 spec.; 17-22
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Distributed fault estimation of multi-agent systems using a proportional-integral observer: A leader-following application
Autorzy:
Farrera, Beltrán
López-Estrada, Francisco-Ronay
Chadli, Mohammed
Valencia-Palomo, Guillermo
Gómez-Peñate, Samuel
Powiązania:
https://bibliotekanauki.pl/articles/330554.pdf
Data publikacji:
2020
Wydawca:
Uniwersytet Zielonogórski. Oficyna Wydawnicza
Tematy:
multiagent systems
fault estimation
state observer
fault observer
linear matrix inequalities
system wieloagentowy
estymacja błędu
obserwator stanu
liniowe nierówności macierzowe
Opis:
This paper proposes a methodology for observer-based fault estimation of leader-following linear multi-agent systems subject to actuator faults. First, a proportional-integral distributed fault estimation observer is developed to estimate both actuator faults and states of each follower agent by considering directed and undirected graph topologies. Second, based on the proposed quadratic Lyapunov equation, sufficient conditions for the asymptotic convergence of the observer are obtained as a set of linear matrix inequalities. Finally, a numerical example is provided to illustrate the proposed approach.
Źródło:
International Journal of Applied Mathematics and Computer Science; 2020, 30, 3; 551-560
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-7 z 7

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