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Wyszukujesz frazę "MULTI" wg kryterium: Temat


Tytuł:
Building multi-agent models applied to supply chain management
Autorzy:
Nawarecki, E.
Koźlak, J.
Powiązania:
https://bibliotekanauki.pl/articles/971016.pdf
Data publikacji:
2010
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
multi-agent systems
multi-agent methodologies
supply chain management
Opis:
In this paper, a model of a multi-agent system for modelling and optimising supply chains is presented. The most popular methodologies of developing multi-agent systems and selected applications of the agent approach to modelling and optimisation of supply chains are described in brief. A pilot realisation of such a system is also presented, together with a selection of the subsequent experimental results obtained.
Źródło:
Control and Cybernetics; 2010, 39, 1; 149-176
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Agent-based data integration framework
Autorzy:
Faber, Ł.
Powiązania:
https://bibliotekanauki.pl/articles/305369.pdf
Data publikacji:
2014
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
data integration
multi-agent systems
Opis:
Combining data from diverse, heterogeneous sources while facilitating a unified access to it is an important (albeit difficult) task. There are various possibilities of performing it. In this publication, we propose and describe an agent-based framework dedicated to acquiring and processing distributed, heterogeneous data collected from diverse sources (e.g., the Internet, external software, relational, and document databases). Using this multi-agent-based approach in the aspects of the general architecture (the organization and management of the framework), we create a proof-of-concept implementation. The approach is presented using a sample scenario in which the system is used to search for personal and professional profiles of scientists.
Źródło:
Computer Science; 2014, 15 (4); 389-410
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Niching in evolutionary multi-agent systems
Autorzy:
Krzywicki, D.
Powiązania:
https://bibliotekanauki.pl/articles/305774.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
niching
evolutionary algorithms
multi-agent systems
Opis:
Niching is a group of techniques used in evolutionary algorithms, useful in several types of problems, including multimodal or nonstationary optimization. This paper investigates the applicability of these methods to evolutionary multi-agent systems (EMAS), a hybrid model combining the advantages of evolutionary algorithms and multi-agent systems. This could increase the efficiency of this type of algorithms and allow to apply them to a wider class of problems. As a starting point, a simple but flexible EMAS framework is proposed. Then, it is shown how to extend this framework in order to introduce niching, by adapting two classical niching methods. Finally, preliminary experimental results show the efficiency and the simultaneous discovery of multiple optima by this modified EMAS.
Źródło:
Computer Science; 2013, 14 (1); 77-95
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fine tuning of agent-based evolutionary computing
Autorzy:
Mizera, Michal
Nowotarski, Pawel
Byrski, Aleksander
Kisiel-Dorohinicki, Marek
Powiązania:
https://bibliotekanauki.pl/articles/91820.pdf
Data publikacji:
2019
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
multi-agent systems
metaheuristics
evolutionary computing
Opis:
Evolutionary Multi-agent System introduced by late Krzysztof Cetnarowicz and developed further at the AGH University of Science and Technology became a reliable optimization system, both proven experimentally and theoretically. This paper follows a work of Byrski further testing and analyzing the efficacy of this metaheuristic based on popular, high-dimensional benchmark functions. The contents of this paper will be useful for anybody willing to apply this computing algorithm to continuous and not only optimization.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2019, 9, 2; 81-97
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Planning System for Multi-Agent Based Reconfigurable Fixtures
Autorzy:
Szynkiewicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/308493.pdf
Data publikacji:
2010
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
fixture planner
multi-agent systems
optimization
Opis:
This paper describes a concept of the planning system for self adaptable, reconfigurable fixtures composed of mobile locators (robotic agents) that can freely move on a bench and reposition below the supported part, without removing the part from the fixture. The main role of the planner is to generate the admissible plan of relocation of the mobile agents. A constrained nonlinear optimization problem is formulated to find the optimal locations for supporting heads.
Źródło:
Journal of Telecommunications and Information Technology; 2010, 3; 71-76
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Integration of multiagent crossing controllers for measure-oriented traffic control
Autorzy:
Trochonowicz, W.
Powiązania:
https://bibliotekanauki.pl/articles/106172.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
multi-agent systems
traffic control
sensors
MATSim
Opis:
In this paper we will present an integration of multiagent crossing controllers for measure oriented traffic control. It is the basis for the future multiagent traffic control system which uses measure oriented approach to control traffic. This integrated architecture gives us the possibility to react to the dynamic changes of traffic thanks to the data it can gather with its sensors.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2013, 13, 1; 97-105
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evolutionary multi-agent computing in inverse problems
Autorzy:
Wróbel, K.
Torba, P.
Paszyński, M
Byrski, A.
Powiązania:
https://bibliotekanauki.pl/articles/305816.pdf
Data publikacji:
2013
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
multi-agent systems
evolutionary computation
inverse problems
Opis:
This paper tackles the application of evolutionary multi-agent computing to solve inverse problems. High costs of fitness function call become a major difficulty when approaching these problems with population-based heuristics. However, evolutionary agent-based systems (EMAS) turn out to reduce the fitness function calls, which makes them a possible weapon of choice against them. This paper recalls the basics of EMAS and describes the considered problem (Step and Flash Imprint Lithography), and later, shows convincing results that EMAS is more effective than a classical evolutionary algorithm.
Źródło:
Computer Science; 2013, 14 (3); 367-383
1508-2806
2300-7036
Pojawia się w:
Computer Science
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Controllability of consensus heterogeneous multi-agent networks over continuous time scale
Autorzy:
Athira, V. S.
Muni, Vijayakumar S.
Rafeek, Kallu Vetty Muhammed
Reddy, Gudala Janardhana
Powiązania:
https://bibliotekanauki.pl/articles/31343938.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
multi-agent systems
controllability
heterogeneous
agent models
Opis:
The research, presented in this paper, concernes the controllability of a multi-agent network with a directed, unweighted, cooperative, and time-invariant communication topology. The network’s agents follow linear and heterogeneous dynamics, encompassing first-order, second-order, and third-order differential equations over continuous time. Two classes of neighbour-based linear distributed control protocols are considered: the first one utilises average feedback from relative velocities/relative accelerations, and the second one utilises feedback from absolute velocities/absolute accelerations. Under both protocols, the network’s agents achieve consensus in their states asymptotically. We observe that both of the considered dynamical rules exploit the random-walk normalised Laplacian matrix of the network’s graph. By categorising the agents of the network into leaders and followers, with leaders serving as exogenous control inputs, we analyse the controllability of followers within their state space through the influence of leaders. Specifically, matrix-rank conditions are established to evaluate the leader– follower controllability of the network under both control protocols. These matrix-rank conditions are further refined in terms of the system matrices’ eigenvalues and eigenvectors. The inference diagrams presented in this work provide deeper insights into how leader– follower interactions impact the network controllability. The efficacy of the theoretical findings is validated through numerical examples.
Źródło:
Control and Cybernetics; 2023, 52, 2; 199-245
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy Alliance and Coalitions that Can Be Formed by Alliance Agents
Autorzy:
Mashkov, Viktor
Smolarz, Andrzej
Lytvynenko, Volodymyr
Powiązania:
https://bibliotekanauki.pl/articles/27311942.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
alliance
coalition
multi-agent systems
modeling and simulation
Opis:
The paper deals with alliances and coalitions that can be formed by agents or entities. It is assumed that alliance agents cooperate and form coalitions for performing the tasks or missions. It is considered that alliance agents are unselfish. That is, they are more interested in achieving the common goal(s) than in getting personal benefits. In the paper, the concept of fuzzy alliance was introduced. A fuzzy alliance is considered as generalization of traditional alliance allowing agents to decide on the capabilities that their agents can and wanted deliver to coalition. Coalitions that can be formed by fuzzy alliance agents were considered. The definition of the “best” coalition was explained. The method of how to find the “best” coalition among all possible coalitions was suggested and verified by computer simulation.
Źródło:
International Journal of Electronics and Telecommunications; 2023, 69, 4; 713--718
2300-1933
Pojawia się w:
International Journal of Electronics and Telecommunications
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multi agent deep learning with cooperative communication
Autorzy:
Simões, David
Lau, Nuno
Reis, Luís Paulo
Powiązania:
https://bibliotekanauki.pl/articles/1837537.pdf
Data publikacji:
2020
Wydawca:
Społeczna Akademia Nauk w Łodzi. Polskie Towarzystwo Sieci Neuronowych
Tematy:
multi-agent systems
deep reinforcement learning
centralized learning
Opis:
We consider the problem of multi agents cooperating in a partially-observable environment. Agents must learn to coordinate and share relevant information to solve the tasks successfully. This article describes Asynchronous Advantage Actor-Critic with Communication (A3C2), an end-to-end differentiable approach where agents learn policies and communication protocols simultaneously. A3C2 uses a centralized learning, distributed execution paradigm, supports independent agents, dynamic team sizes, partiallyobservable environments, and noisy communications. We compare and show that A3C2 outperforms other state-of-the-art proposals in multiple environments.
Źródło:
Journal of Artificial Intelligence and Soft Computing Research; 2020, 10, 3; 189-207
2083-2567
2449-6499
Pojawia się w:
Journal of Artificial Intelligence and Soft Computing Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Profile-based architecture of evolutionary MAS
Autorzy:
Kisiel-Dorohinicki, M.
Dobrowolski, G.
Nawarecki, E.
Powiązania:
https://bibliotekanauki.pl/articles/1931571.pdf
Data publikacji:
2003
Wydawca:
Politechnika Gdańska
Tematy:
decentralized artificial intelligence
multi-agent systems
evolutionary computation
Opis:
A sub-type of multi-agent systems (MAS) called evolutionary ones (EMAS), special in its features and field of application, needs a dedicated architecture that would be more adequate and easier in design and implementation. The proposed architecture uses the notion of a profile which models strategies and goals of an agent with respect to an aspect of its operation. To make a decision, an agent is equipped with an algorithm that coordinates premises determined in its profiles. The paper presents main ideas of the architecture illustrated with an actual realisation of an EMAS solving the multi-objective optimisation problem.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 1; 65-72
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evacuation by leader-follower model with bounded confidence and predictive mechanisms
Autorzy:
Almeida, Ricardo
Girejko, Ewa
Machado, Luis
Malinowska, Agnieszka B.
Martins, Natália
Powiązania:
https://bibliotekanauki.pl/articles/1845516.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-agent systems
emergency
model predictive control
bounded confidence
Opis:
This paper studies an evacuation problem described by a leader-follower model with bounded confidence under predictive mechanisms. We design a control strategy in such a way that agents are guided by a leader, which follows the evacuation path. The proposed evacuation algorithm is based on Model Predictive Control (MPC) that uses the current and the past information of the system to predict future agents’ behaviors. It can be observed that, with MPC method, the leader-following consensus is obtained faster in comparison to the conventional optimal control technique. The effectiveness of the developed MPC evacuation algorithm with respect to different parameters and different time domains is illustrated by numerical examples.
Źródło:
Archives of Control Sciences; 2021, 31, 3; 629-644
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evacuation by leader-follower model with bounded confidence and predictive mechanisms
Autorzy:
Almeida, Ricardo
Girejko, Ewa
Machado, Luis
Malinowska, Agnieszka B.
Martins, Natália
Powiązania:
https://bibliotekanauki.pl/articles/1845527.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
multi-agent systems
emergency
model predictive control
bounded confidence
Opis:
This paper studies an evacuation problem described by a leader-follower model with bounded confidence under predictive mechanisms. We design a control strategy in such a way that agents are guided by a leader, which follows the evacuation path. The proposed evacuation algorithm is based on Model Predictive Control (MPC) that uses the current and the past information of the system to predict future agents’ behaviors. It can be observed that, with MPC method, the leader-following consensus is obtained faster in comparison to the conventional optimal control technique. The effectiveness of the developed MPC evacuation algorithm with respect to different parameters and different time domains is illustrated by numerical examples.
Źródło:
Archives of Control Sciences; 2021, 31, 3; 629-644
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Development of INFOCAST - information system for foundry industry
Autorzy:
Dobrowolski, G.
Marcjan, R.
Nawarecki, E.
Kluska-Nawarecka, S.
Dziaduś, J.
Wójcik, T.
Powiązania:
https://bibliotekanauki.pl/articles/1954639.pdf
Data publikacji:
2003
Wydawca:
Politechnika Gdańska
Tematy:
multi-agent systems
expert systems
databases
foundry industry
diagnosis
Opis:
The article presents the current state of development of INFOCAST - an information decision system supporting technological problems of the foundry industry. Two aspects of the system are related: enrichment of its information and knowledge resources and changes in architecture, both oriented towards improvement of its applicability. The reported stage of development of INFOCAST is characterized by a close integration of its data and knowledge bases by means of the agent-based technology. Due to decentralization, the knowledge and information can be used not only in research and design activities, but also in the exploitation of technological processes.
Źródło:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk; 2003, 7, 2; 283-289
1428-6394
Pojawia się w:
TASK Quarterly. Scientific Bulletin of Academic Computer Centre in Gdansk
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielorobotowa rekonfigurowalna forma mocująca obrabiane detale - układ sterowania
Multi-Robot-Based Reconfigurable Fixture - Control System
Autorzy:
Zieliński, C.
Trojanek, P.
Kornuta, T.
Winiarski, T.
Walęcki, M.
Kasprzak, W.
Szynkiewicz, W.
Zielińska, T.
Powiązania:
https://bibliotekanauki.pl/articles/276280.pdf
Data publikacji:
2013
Wydawca:
Sieć Badawcza Łukasiewicz - Przemysłowy Instytut Automatyki i Pomiarów
Tematy:
rekonfigurowalne formy mocujące
systemy wielorobotowe
systemy wieloagentowe
układy sterowania
reconfigurable fixtures
robotic fixtureless assemblies
multi-robot systems
multi-agent systems
control systems
Opis:
Formy mocujące muszą być idealnie dopasowane do detali, które maja podpierać. Nawet mała modyfikacja kształtu w projekcie detalu powoduje, że kosztowna forma staje się bezużyteczna. Stąd duże zainteresowanie przemysłu formami rekonfigurowalnymi. Zastąpienie tradycyjnych form przez wiele robotów stanowiących ruchome podpory wymaga zaprojektowania specjalnego układu sterowania oraz dedykowanej metody programowania umożliwiającej szybką rekonfigurację takiego systemu. Układ sterowania systemu wielorobotowego został zaprojektowany na podstawie formalnej specyfikacji definiującej strukturę tego układu za pomocą agentów, których zachowanie określane jest za pomocą funkcji przejścia. W ten sposób stworzono system modularny, umożliwiający parametryzację oprogramowania ułatwiające wprowadzanie zmian przy sprawdzaniu różnych rozwiązań technicznych, co jest nieodzowne przy konstrukcji systemu prototypowego. Eksperymenty przeprowadzone w fabryce wykazały, że zaprojektowany system usztywnia detal na tyle, aby wynik obróbki mechanicznej był zadowalający. Jeżeli liczba różnych detali podlegających obróbce jest znaczna, to zaprojektowany system stanowi względnie tanią alternatywę dla wytworzenia i późniejszego magazynowania wielu form. Ponadto zaprojektowany układ sterowania może sterować zespołami robotów o różnej liczności oraz dopuszcza zmiany konstrukcyjne poszczególnych części robotów. Pierwsza część artykułu przedstawia problemy związane z konstrukcją form podpierających oraz prezentuje strukturę układu sterowania systemu wielorobotowego, natomiast część druga koncentruje się na programie planującym działania robotów.
Machining fixtures must fit exactly the work piece to support it appropriately. Even slight change in the design of the work piece renders the costly fixture useless. Substitution of traditional fixtures by a programmable multi-robot system supporting the work pieces requires a specific control system and a specific programming method enabling its quick reconfiguration. The multi-robot control system has been designed following a formal approach based on the definition of the system structure in terms of agents and transition function definition of their behaviour. Thus a modular system resulted, enabling software parameterisation. This facilitated the introduction of changes brought about by testing different variants of the mechanical structure of the system. The shop-floor experiments with the system showed that the work piece is held stiffly enough for both milling and drilling operations performed by the CNC machine. If the number of diverse work piece shapes is large the reconfigurable fixture is a cost-effective alternative to the necessary multitude of traditional fixtures. Moreover, the proposed design approach enables the control system to handle a variable number of controlled robots and accommodates possible changes to the hardware of the work piece supporting robots. The first part of the paper introduces the fixturing problem and presents the control system of the designed multi-robot fixture, while the second part presents the planer deciding where and when the supports should be located.
Źródło:
Pomiary Automatyka Robotyka; 2013, 17, 2; 79-85
1427-9126
Pojawia się w:
Pomiary Automatyka Robotyka
Dostawca treści:
Biblioteka Nauki
Artykuł

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