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Wyszukujesz frazę "complex systems" wg kryterium: Temat


Tytuł:
Crash Course in prediction and mitigation for a crashing system
Autorzy:
DeVita, Laurenc
Powiązania:
https://bibliotekanauki.pl/articles/13925591.pdf
Data publikacji:
2023-04-01
Wydawca:
Wyższa Szkoła Bankowa we Wrocławiu
Tematy:
complex systems
disaster management
Opis:
Aim: To present a condensed but inclusive discussion of the nature of the complex global system and the impediments to, but also the advantages of, means of prediction and action in a rapidly declining society to offer a compendium of the potential to assess the difficulty of predicting complex social systems. Research methods: A review and synthesis of research material on: the function of dissipative systems, most specifically the global social system; the means to discern, measure and assess three kinds of energy through functional networks; the intractable difficulties with prediction and agency. Conclusions: Regardless the inherent difficulty in prediction and agency in complex systems, there is a benefit to having some methodology. That is, it is better to understand how the system works, and to be able to identify, if just a short while in advance, what might happen and what responses we might have, and to do that we need to have an organized way to look at things. Originality / value of the article: Offers, to a broad variety of large and small organizations, a brief guide to conceptualizing the global system, its functioning parts and sources of energy, and the imperative and difficulty of predicting and strategizing for changes in a declining system. Implications of the research: There is benefit to a thorough understanding of the complex social system, if it allows prediction and response to system changes. Limitations of the research: It is a “crash course”, and ideas are explored but not exhaustively described. JEL: D91, E71, H12
Źródło:
Central European Review of Economics and Management; 2023, 7, 1; 31-61
2543-9472
Pojawia się w:
Central European Review of Economics and Management
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of a Range of Interaction among Agents on Efficiency and Effectiveness of Knowledge Transfer within an Organisation
Autorzy:
Paradowski, K.
Kowalska-Styczeń, A.
Malarz, K.
Powiązania:
https://bibliotekanauki.pl/articles/1029627.pdf
Data publikacji:
2018-06
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
cellular automata
complex systems
social and economic systems
structures and organisation in complex systems
Opis:
In this study we examined how the size of non-formal groups between organisation members affect the transfer of knowledge in the context of the efficiency and effectiveness of this process. To analyse the dynamics of the transfer of knowledge the cellular automata model was used. The model is based on local interactions between members of the organisation, that take place in the nearest neighbourhood. These groups of close neighbours are represented by von Neumann's neighbourhood (four nearest-neighbours) and Moore's neighbourhood (four nearest-neighbours and four next-nearest neighbours) and complex neighbourhood (four nearest neighbours, four next-nearest neighbours and four next-next-neighbours). The results of the simulation show the influence of the size of the neighbourhood on the efficiency of knowledge transfer.
Źródło:
Acta Physica Polonica A; 2018, 133, 6; 1470-1476
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Queuing in terms of complex systems
Autorzy:
Grabowski, F.
Paszkiewicz, A.
Bolanowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/106320.pdf
Data publikacji:
2014
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
complex systems
queuing system
simple systems
Opis:
Limited resources are a natural feature of most real systems, both artificial and natural ones. This causes the need for effective management of access to existing resources. In this area, queuing systems are of special application. However, they are treated as simple systems for which two states are characteristic: work underload and work on the border of thermodynamic equilibrium.This approach is reflected in existing queue management mechanisms, that need to keep them in one of two mentioned states. On the other hand, they should be considered from the point of complex systems view, for which the third operation states: overload state is natural as well. In order to be closer to this issue, in this paper the authors consider queues performance from the perspective of complex systems.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2014, 14, 3; 7-13
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Softcomputing approach to discrete transport system analysis
Autorzy:
Mazurkiewicz, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069159.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
dependability
modelling
complex systems
softcomputing
Opis:
The paper presents an approach to complex analysis of sophisticated Discrete Transport Systems (DTS) using softcomputing. The proposed methodology can efficiently substitute the classical approach especially since dependability parameters of the system are mostly approximated by experts instead of classical sources of data. On the other hand we can try to combine reliability and functional aspects. The paper describes the multicriteria scientific field of the Discrete Transport Systems and shows the way how the softcomputing can be in use in the sensible way. Moreover, results of the numerical experiment performed on a test case scenario related to the reliability and functional aspects using proposed methodology are given. The approach allows reducing the problem of assumptions of reliability distributions and – this way – seems to be very interesting for real systems management and tuning.
Źródło:
Journal of Polish Safety and Reliability Association; 2013, 4, 2; 219--228
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fuzzy approach to complex system analysis
Autorzy:
Mazurkiewicz, J.
Nowak, K.
Walkowiak, T.
Powiązania:
https://bibliotekanauki.pl/articles/2069196.pdf
Data publikacji:
2012
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
dependability
modelling
complex systems
fuzzy logic
Opis:
The paper presents a new approach to reliability and functional analysis of sophisticated complex systems using fuzzy logic. We propose to use such methodology since dependability parameters of the system are mostly approximated by experts instead of classical sources of data. Presented approach show different idea – modeling system using the unified structure – in functional sense. We assess the reliability of the system by accumulated down time. Fuzzy logic based reliability analysis, as well as Computer Information System and Discrete Transport System modeling and simulation are presented. Moreover, results of numerical experiment performed on a test case scenario related to the economic and functional aspects using proposed methodology are given. Fuzzy approach allows reducing the problem of assumptions of reliability distributions and – this way – seems to be very interesting for real systems management and tuning.
Źródło:
Journal of Polish Safety and Reliability Association; 2012, 3, 2; 169--178
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of the safety efficiency of a road network : a real case study
Autorzy:
Zio, E.
Sansavini, G.
Maja, R.
Marchionni, G.
Powiązania:
https://bibliotekanauki.pl/articles/2069613.pdf
Data publikacji:
2007
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
complex systems
road networks
safety
vulnerability
Opis:
In this paper, recently introduced topological measures of interconnection and efficiency of network systems are applied to the safety analysis of the road transport system of the Province of Piacenza in Italy. The vulnerability of the network is evaluated with respect to the loss of a road link, e.g. due to a car accident, road work or other jamming occurrences. Eventually, the improvement in the global and local safety indicators following the implementation of a road development plan is evaluated.
Źródło:
Journal of Polish Safety and Reliability Association; 2007, 2; 401--406
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Physicist’s approach to public transportation networks: between data processing and statistical physics
Autorzy:
Korduba, Yaryna
Holovatch, Yurij
de Regt, Robin
Powiązania:
https://bibliotekanauki.pl/articles/1395932.pdf
Data publikacji:
2019
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
Complex systems
complex networks
statistical physics
transportation networks
Opis:
In this paper we aim to demonstrate how physical perspective enriches statistical analysis when dealing with a complex system of many interacting agents of non-physical origin. To this end, we discuss analysis of urban public transportation networks viewed as complex systems. In such studies, a multi-disciplinary approach is applied by integrating methods in both data processing and statistical physics to investigate the correlation between public transportation network topological features and their operational stability. These studies incorporate concepts of coarse graining and clusterization, universality and scaling, stability and percolation behavior, diffusion and fractal analysis.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica; 2019, 73, 2
0365-1029
2083-7402
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska, sectio A – Mathematica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer-aided characteristics prediction of complex technical systems operation processes
Autorzy:
Blokus-Roszkowska, A.
Guze, S.
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069523.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
operation processes
prediction
complex systems
transport system
Opis:
In the paper, the procedures of the prediction of complex technical system operation process’ characteristics are described. Furthermore, the computer program for prediction of the operations processes capabilities with description are presented. As the application of this computer program, the characteristics’ prediction of the port oil transportation technical system operation process is shown.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 241--246
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Engineering sustainable complex systems
Autorzy:
Ahram, T. Z.
Karwowski, W.
Powiązania:
https://bibliotekanauki.pl/articles/406952.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
systems engineering
sustainability
human factors
human systems integration
complex systems
Opis:
Given the most competitive nature of global business environment, effective engineering innovation is a critical requirement for all levels of system lifecycle development. The society and community expectations have increased beyond environmental short term impacts to global long term sustainability approach. Sustainability and engineering competence skills are extremely important due to a general shortage of engineering talent and the need for mobility of highly trained professionals [1]. Engineering sustainable complex systems is extremely important in view of the general shortage of resources and talents. Engineers implement new technologies and processes to avoid the negative environmental, societal and economic impacts. Systems thinking help engineers and designers address sustainable development issues with a global focus using leadership and excellence. This paper introduces the Systems Engineering (SE) methodology for designing complex and more sustainable business and industrial solutions, with emphasis on engineering excellence and leadership as key drivers for business sustainability. The considerable advancements achieved in complex systems engineering indicate that the adaptation of sustainable SE to business needs can lead to highly sophisticated yet widely useable collaborative applications, which will ensure the sustainability of limited resources such as energy and clean water. The SE design approach proves critical in maintaining skills needed in future capable workforce. Two factors emerged to have the greatest impact on the competitiveness and sustainability of complex systems and these were: improving skills and performance in engineering and design, and adopting SE and human systems integration (HSI) methodology to support sustainability in systems development. Additionally, this paper provides a case study for the application of SE and HSI methodology for engineering sustainable and complex systems.
Źródło:
Management and Production Engineering Review; 2013, 4, 4; 4-14
2080-8208
2082-1344
Pojawia się w:
Management and Production Engineering Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Some preliminary results of memory cache analysis with the use of non-extensive
Autorzy:
Strzałka, D.
Powiązania:
https://bibliotekanauki.pl/articles/106168.pdf
Data publikacji:
2016
Wydawca:
Uniwersytet Marii Curie-Skłodowskiej. Wydawnictwo Uniwersytetu Marii Curie-Skłodowskiej
Tematy:
complex systems
cache memory
system counters
sallis entropy
Opis:
The problem of modeling different parts of computer systems requires accurate statistical tools. Cache memory systems is an inherent part of nowadays computer systems, where the memory hierarchical structure plays a key point role in behavior and performance of the whole system. In the case of Windows operating systems, cache memory is a place in memory subsystem where the I/O system puts recently used data from disk. In paper some preliminary results about statistical behavior of one selected system counter behavior are presented. Obtained results shown that the real phenomena, which have appeared during human-computer interaction, can be expressed in terms of non-extensive statistics that is related to Tsallis proposal of new entropy definition.
Źródło:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica; 2016, 16, 2; 43-47
1732-1360
2083-3628
Pojawia się w:
Annales Universitatis Mariae Curie-Skłodowska. Sectio AI, Informatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 6. IS&RDSS Application – Exemplary system operation cost analysis and maintenance optimization
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Xie, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069548.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
operation cost
complex systems
corrective maintenance
preventive maintenance
Opis:
The way of operation cost analysis of the complex technical system at the variable operation conditions and its application to the evaluation of the cost before and after the exemplary system operation process optimization is presented. The methods of corrective and preventive maintenance policy maximizing availability and minimizing renovation cost of the complex technical systems in variable operation conditions are presented and applied to the exemplary system.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 435--444
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hierarchical control structures
Autorzy:
Findeisen, W.
Powiązania:
https://bibliotekanauki.pl/articles/205523.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
sterowanie
complex systems
conflicts
control
coordination
hierarchical structures
Opis:
Control of complex systems, where maany detailed decisions are to be made on a current basis, along with long-term considerations, calls for structures composed of a multitude of decision units. This, in turn, may lead to various conflicts. The latter are to be predicted and counteracted by appropriate measures in the design of decision structure as well as in the course of its operation. Allocation of information and the language of communication between various levels of the hierarchy also are of the prime importance.
Źródło:
Control and Cybernetics; 2000, 29, 1; 69-78
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Computer-aided identification of complex technical systems operation processes
Autorzy:
Blokus-Roszkowska, A.
Guze, S.
Kołowrocki, K.
Soszyńska-Budny, J.
Powiązania:
https://bibliotekanauki.pl/articles/2069513.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
operation processes
statistical identification
complex systems
transport system
Opis:
In the paper, the procedures of the identification of complex technical system operation process and identifying the distributions of the system conditional sojourn times in the operation states are described. Furthermore, the computer program for identification of the operations processes capabilities with description are presented. As the application of this computer program, the identification of the ferry technical system operation process is shown.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 235--240
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hypotheses concerning complexity surges in modern and future industrial information systems
Autorzy:
Freund, Lucas
Al-Majeed, Salah
Powiązania:
https://bibliotekanauki.pl/articles/1835489.pdf
Data publikacji:
2021
Wydawca:
Wyższa Szkoła Logistyki
Tematy:
complexity
complex systems
industrial systems
information
cyber-physical systems
Big Data
Opis:
This paper has the central aim to provide an analysis of increases of system complexity in the context of modern industrial information systems. An investigation and exploration of relevant theoretical frameworks is conducted and accumulates in the proposition of a set of hypotheses as an explanatory approach for a possible definition of system complexity based on information growth in industrial information systems. Several interconnected sources of technological information are investigated and explored in the given context in their functionality as information transferring agents, and their practical relevance is underlined by the application of the concepts of Big Data and cyber-physical, cyber-human and cyber-physical-cyber-human systems. Methods: A systematic review of relevant literature was conducted for this paper and in total 85 sources matching the scope of this article, in the form of academic journals and academic books of the mentioned academic fields, published between 2012 and 2019, were selected, individually read and reviewed by the authors and reduced by careful author selection to 17 key sources which served as the basis for theory synthesis. Results: Four hypotheses (H1-H4) concerning exponential surges of system complexity in industrial information systems are introduced. Furthermore, first foundational ideas for a possible approach to potentially describe, model and simulate complex industrial information systems based on network, agent-based approaches and the concept of Shannon entropy are introduced. Conclusion: Based on the introduced hypotheses it can be theoretically indicated that the amount information aggregated and transferred in a system can serve as an indicator for the development of system complexity and as a possible explanatory concept for the exponential surges of system complexity in industrial information systems.
Źródło:
LogForum; 2021, 17, 3; 321-329
1734-459X
Pojawia się w:
LogForum
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing the integrated package of tools supporting decision making on identification, prediction and optimization of complex technical systems operation, reliability and safety. Part 7. IS&RDSS Application – Exemplary system operation and reliability new strategy
Autorzy:
Kołowrocki, K.
Soszyńska-Budny, J.
Xie, M.
Powiązania:
https://bibliotekanauki.pl/articles/2069532.pdf
Data publikacji:
2011
Wydawca:
Uniwersytet Morski w Gdyni. Polskie Towarzystwo Bezpieczeństwa i Niezawodności
Tematy:
reliability
operation process
operation cost
complex systems
optimization
availability
Opis:
The paper presents the collection of the results concerned with the exemplary system operation, reliability, availability, maintenance and cost analysis, modelling, prediction and optimization coming from the Integrated Safety and Reliability Decision Support System - IS&RDSS application performed in its six previous parts. On the basis of the collected operation and reliability parameters and characteristics of the exemplary system before and after its operation process optimization, there is suggested its operation and reliability new strategy.
Źródło:
Journal of Polish Safety and Reliability Association; 2011, 2, 2; 445--452
2084-5316
Pojawia się w:
Journal of Polish Safety and Reliability Association
Dostawca treści:
Biblioteka Nauki
Artykuł

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