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Wyszukujesz frazę "Malinowski, K." wg kryterium: Autor


Tytuł:
Optimization of operative decisions ; computer analysis
Autorzy:
Malinowski, K.
Tematy:
analiza komputerowa
optymalizacja
symulacja komputerowa
teoria decyzji
teoria gier
teoria systemów
computer analysis
computer simulation
forecast
management
operative control
operative decisions
optimization
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Data publikacji:
2000
Powiązania:
https://bibliotekanauki.pl/articles/205746.pdf  Link otwiera się w nowym oknie
Źródło:
Control and Cybernetics; 2000, 29, 1; 257-274
0324-8569
Pojawia się w:
Control and Cybernetics
Opis:
When entering the age of ubiquitous computing we observe a rapidly increasing number of applications in which - in real time - operative (control or management) decisions are made based on optimization. To implement repetitive optimization of these decisions we need to use process models, models or directly available forecasts of free, uncontrolled, inputs, methods for state and parameter estimation, model adaptation techniques, and, finally, suitable optimization techniques. Analysis and validation of such optimization based systems require - prior to actual real-life implementation - the carefully planned and performed computer experiments. Theoretical methods are always welcome to assist in this analysis - if possible - but it is mainly the computer based simulation experiment which allows us to investigate, verify and tune a complicated decision mechanism and then control system as a whole before this system is authorized to be put to real-life test. Success in design of a system with on-line computed optimization-based operative decisions is therefore dependent upon many factors, in particular - on having good models, efficient and reliable optimization techniques, good software tools for computer based simulation and on proper, real-life-like conditions under which the computer experiments are performed. These key issues concerning development of such control systems are discussed in this paper.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analiza transformacji gospodarstwa ogrodniczego z uwzględnieniem aspektów technicznych
Analysis of horticultural farm transformation including some technical aspects
Autorzy:
Gaworski, M.
Malinowski, K.
Tematy:
efektywność
gospodarstwo
koszty
wyposażenie techniczne
efficiency
farm
costs
technical equipment
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Data publikacji:
2011
Powiązania:
https://bibliotekanauki.pl/articles/289073.pdf  Link otwiera się w nowym oknie
Źródło:
Inżynieria Rolnicza; 2011, R. 15, nr 9, 9; 41-48
1429-7264
Pojawia się w:
Inżynieria Rolnicza
Opis:
Celem pracy było określenie ekonomicznej efektywności przejścia z produkcji zbóż na uprawy sadownicze z uwzględnieniem nakładów związanych z doskonaleniem technicznego wyposażenia rozpatrywanego gospodarstwa. Z analizy wynika, że odejście od uprawy zbóż na rzecz roślin sadowniczych zwiększy dochód w przeliczeniu na jednostkę powierzchni analizowanego gospodarstwa i pozwoli na stosunkowo szybki zwrot nakładów poniesionych na przebudowę, zakupy maszyn i urządzeń do produkcji.
The purpose of the study was to analyse some problems concerning economic efficiency of farm transformation from cereal to fruit production, including inputs on the improvement of the farm technical infrastructure. The analysis proves that transformation from cereal production into orchard production will result in higher farm unit incomes (per hectare). Moreover, it will allow for quite fast return of inputs incurred for reconstruction, purchase of machines and production devices.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Periodic Coordination in Hierarchical Air Defence Systems
Autorzy:
Arabas, P.
Malinowski, K.
Tematy:
system hierarchiczny
system wspomagający wypracowanie decyzji
missile defence
hierarchical systems
coordination
decision support systems
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Data publikacji:
2001
Powiązania:
https://bibliotekanauki.pl/articles/908340.pdf  Link otwiera się w nowym oknie
Źródło:
International Journal of Applied Mathematics and Computer Science; 2001, 11, 2; 493-513
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Opis:
The subject of this work is the defence planning of a point target against an air attack. The defence system is decomposed into a number of sectors. A direct method of coordination is used at the upper level, while the sectors use a discrete-time event-based model and the description of uncertainty by multiple scenarios of an attack. The resulting problems are solved using linear programming. A comparison of two coordination strategies for realistic attack scenarios and an analysis of effectiveness are provided.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Price-based coordinability in hierarchical systems with information asymmetry: a comparative analysis of Nash equilibrium conditions
Autorzy:
Karpowicz, M. P.
Malinowski, K.
Tematy:
Nash equilibrium, coordination asymmetric information
optimization
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Data publikacji:
2013
Powiązania:
https://bibliotekanauki.pl/articles/206529.pdf  Link otwiera się w nowym oknie
Źródło:
Control and Cybernetics; 2013, 42, 1; 85-110
0324-8569
Pojawia się w:
Control and Cybernetics
Opis:
The well-known problem of price-based coordinability is studied for the case of a multi-agent system in which information regarding the goals of the interacting subsystems is asymmetric. The paper illustrates how the uniform-price-based coordination rulet may create incentives to anticipate the values of coordination signals and, thus, why the coordinability condition cannot be satisfied under asymmetric information. For this purpose a comparison is given of Nash equilibrium outcomes that are reachable individually by priceanticipating agents in two noncooperative games. These games are induced by the uniform-price-based coordination mechanism and are referred to as payment-bidding auction and demand-bidding auction. The analysis presented shows that in the games considered some of the agents may improve payoffs and allocations by applying the price-anticipating bidding strategies. However, the payment-bidding auction cannot be strictly dominated by the demand-bidding action with respect to the resource allocation levels individually received by each agent. The derived results of theoretic considerations are illustrated by numerical examples.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Object library of algorithms for dynamic optimization problems; Benchmarking SQP and nonlinear interior point methods
Autorzy:
Błaszczyk, J.
Karbowski, A.
Malinowski, K.
Tematy:
optymalizacja dynamiczna
programowanie kwadratowe sekwencyjne
różniczkowanie automatyczne
obliczenia numeryczne
analiza danych
dynamic optimization
large-scale optimization
sequential quadratic programming
nonlinear interior-point methods
object-oriented numerical computations
automatic differentiation
performance data analysis
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Data publikacji:
2007
Powiązania:
https://bibliotekanauki.pl/articles/929795.pdf  Link otwiera się w nowym oknie
Źródło:
International Journal of Applied Mathematics and Computer Science; 2007, 17, 4; 515-537
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Opis:
The main purpose of this paper is to describe the design, implementation and possibilities of our object-oriented library of algorithms for dynamic optimization problems. We briefly present library classes for the formulation and manipulation of dynamic optimization problems, and give a general survey of solver classes for unconstrained and constrained optimization. We also demonstrate methods of derivative evaluation that we used, in particular automatic differentiation. Further, we briefly formulate and characterize the class of problems solved by our optimization classes. The solution of dynamic optimization problems with general constraints is performed by transformation into structured large-scale nonlinear programming problems and applying methods for nonlinear optimization. Two main algorithms of solvers for constrained dynamic optimization are presented in detail: the sequential quadratic programming (SQP) exploring the multistage structure of the dynamic optimization problem during the solution of a sequence of quadratic subproblems, and the nonlinear interior-point method implemented in a general-purpose large-scale optimizer IPOPT. At the end, we include a typical numerical example of the application of the constrained solvers to a large-scale discrete-time optimal control problem and we use the performance profiles methodology to compare the efficiency and robustness of different solvers or different options of the same solver. In conclusions, we summarize our experience gathered during the library development.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Price Method and Network Congestion Control
Autorzy:
Malinowski, K.
Niewiadomska-Szynkiewicz, E.
Jaskóła, P.
Tematy:
computer network
congestion control
coordination strategy
price
price instruments
retail pricing problem
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Data publikacji:
2010
Powiązania:
https://bibliotekanauki.pl/articles/309158.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Telecommunications and Information Technology; 2010, 2; 73-77
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Opis:
Price instruments are useful in achieving market balance conditions in various markets. Those instruments can be also used for control of other composite systems. The formulation and basic properties of the Price Method are reviewed and then the congestion control by price instruments in a computer network is described and tested.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of a Java-Based Framework to Parallel Simulation of Large-Scale Systems
Autorzy:
Niewiadomska-Szynkiewicz, E.
Żmuda, M.
Malinowski, K.
Tematy:
informatyka
parallel computations
simulation
large-scale systems
computer systems
computer-aided system design
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Data publikacji:
2003
Powiązania:
https://bibliotekanauki.pl/articles/908095.pdf  Link otwiera się w nowym oknie
Źródło:
International Journal of Applied Mathematics and Computer Science; 2003, 13, 4; 537-547
1641-876X
2083-8492
Pojawia się w:
International Journal of Applied Mathematics and Computer Science
Opis:
Large-scale systems, such as computer and telecommunication networks, complex control systems and many others, operate in inherently parallel environments. It follows that there are many opportunities to admit parallelism into both the algorithm of control implementation and simulation of the system operation considered. The paper addresses issues associated with the application of parallel discrete event simulation (PDES). We discuss the PDES terminology and methodology. Particular attention is paid to the software environment CSA&S/PV (Complex Systems Analysis & Simulation-Parallel Version), which provides a framework for simulation experiments performed on parallel computers. CSA&S/PV was applied to investigate several real-life problems. The case studies are presented for both computer and water networks.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimal Pump Scheduling for Large Scale Water Transmission System by Linear Programming
Autorzy:
Błaszczyk, J.
Karboński, A.
Krawczyk, K.
Malinowski, K.
Allidina, A.
Tematy:
linear programming
minimum cost operative planning
pump scheduling
water supply
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Data publikacji:
2012
Powiązania:
https://bibliotekanauki.pl/articles/309318.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Telecommunications and Information Technology; 2012, 3; 91-96
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Opis:
Large scale potable water transmission system considered in this paper is the Toronto Water System, one of the largest potable water supply networks in North America. The main objective of the ongoing Transmission Operations Optimizer project consists in developing an advanced tool for providing such pumping schedules for 153 pumps, that all quantitative requirements with respect to the system operation are met, while the energy costs are minimized. We describe here a linear, so-called SimplifiedModel (SM), based on mass-balance equations, which is solved on week horizon and delivers boundary conditions for so-called Full Model (FM), which is nonlinear and takes into account hydraulic phenomena and water quality.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Software Platform for Research on Auction Mechanisms
Autorzy:
Kamola, M.
Niewiadomska-Szynkiewicz, E.
Malinowski, K.
Stańczuk, W.
Pałka, P.
Tematy:
auctions
multi-commodity markets
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Data publikacji:
2011
Powiązania:
https://bibliotekanauki.pl/articles/307872.pdf  Link otwiera się w nowym oknie
Źródło:
Journal of Telecommunications and Information Technology; 2011, 3; 38-46
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Opis:
The platform for research on auction mechanisms is a distributed simulation framework providing means to carry out research on resource allocation efficiency mechanisms and user strategies. Both kinds of algorithms examined are completely user-defined. Interaction of algorithms is recorded and pre-defined measures for the final resource allocation are calculated. Underlying database design provides for efficient results lookup and comparison across different experiments, thus enabling research groupwork. A recognised, open and flexible information model is employed for experiment descriptions.
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Charged projectile spectrometry using solid-state nuclear track detector of the PM-355 type
Autorzy:
Malinowska, A.
Jaskóła, M.
Korman, A.
Szydłowski, A.
Malinowski, K.
Kuk, K.
Tematy:
solid-state nuclear track detectors (SSNTDs)
PM-355
energy resolution of proton and deuteron
calibration diagrams
track mean gray level
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Data publikacji:
2015
Powiązania:
https://bibliotekanauki.pl/articles/146945.pdf  Link otwiera się w nowym oknie
Źródło:
Nukleonika; 2015, 60, No. 3, part 2; 591-596
0029-5922
1508-5791
Pojawia się w:
Nukleonika
Opis:
To use effectively any radiation detector in high-temperature plasma experiments, it must have a lot of benefits and fulfill a number of requirements. The most important are: a high energy resolution, linearity over a wide range of recorded particle energy, high detection efficiency for these particles, a long lifetime and resistance to harsh conditions existing in plasma experiments and so on. Solid-state nuclear track detectors have been used in our laboratory in plasma experiments for many years, but recently we have made an attempt to use these detectors in spectroscopic measurements performed on some plasma facilities. This paper presents a method that we used to elaborate etched track diameters to evaluate the incident projectile energy magnitude. The method is based on the data obtained from a semiautomatic track scanning system that selects tracks according to two parameters, track diameter and its mean gray level.
Dostawca treści:
Biblioteka Nauki
Artykuł

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