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Wyszukujesz frazę "reference point" wg kryterium: Temat


Tytuł:
ZASTOSOWANIE METODY BIPOLAR NA PRZYKŁADZIE PROBLEMU WYBORU DOSTAWCY USŁUG LOGISTYCZNYCH
REFERENCE POINTS IN THE ASSESSMENT OF THE DECISION VARIANTS - BIPOLAR METHOD
Autorzy:
Tłuczak, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/452943.pdf
Data publikacji:
2018
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
metoda BIPOLAR
wybór dostawcy
BIPOLAR method
reference point
Opis:
Idea metody BIPOLAR polega na tym, że warianty decyzyjne nie są porównywane bezpośrednio ze sobą a z zestawami rozwiązań wskazanych jako referencyjne. Takie porównanie umożliwia sprawdzenie czy istnieją przesłanki do uznania danego wariantu za mający przewagę nad każdym z pozostałych. Zbiór rozwiązań nazywa się zbiorem punktów referencyjnych, który zawiera rozwiązania dobre i złe. Metoda BIPOLAR uwzględnia wszystkie etapy procesu decyzyjnego: wybór kryteriów oraz określenie ich wag, modelowanie preferencji decydentów, wybór właściwego wariantu decyzyjnego na podstawie rankingu.
Bipolar is one of the Multiple Criteria Decision Analysis (MCDA) methods, proposed by E. Konarzewska-Gubała. The main idea of the analysis in the Bipolar method consists in a fact that alternatives are not compared directly to each other, but they are confronted to the two sets of reference objects: good and bad. Some alternatives can be evaluated as over good, i.e. better than at least one of desirable reference object or underbid, i.e. worse than at least of one nonacceptable object. Proposed method takes into account all stages of the decision-making process, starting with the selection of criteria and determining their weights, by modeling the preferences of decision-makers, on obtaining recommendations in the form of a ranking of decision-making variants. The BIPOLAR method has been used to select suppliers of food products for retail stores. Comparison of decision variants with a reference set is carried out on similar principles as in the ELCTRE method, in which the basic principle is to compare each variant with all others. Such a comparison makes it possible to check if there are grounds for considering a given variant to have an advantage over each of the others.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2018, 19, 3; 293-302
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The problem of objective ranking: foundations, approaches and applications
Autorzy:
Wierzbicki, A. P.
Powiązania:
https://bibliotekanauki.pl/articles/308101.pdf
Data publikacji:
2008
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
subjective ranking
objective ranking
reference point approaches
objectivity
Opis:
The paper starts with the discussion of the issue of objectivity versus subjectivity, stressing that while an absolute objectivity is not attainable, nevertheless trying to be as objective as possible constitutes a higher value, necessary for hard science and technology. Dangers and errors of the subjectivist reduction of objectivity to power and money attempted by the postmodern sociology of science are discussed. Then we turn to the problem of subjective versus objective decision analysis and ranking. It is shown that while all classical decision theory aims at a rational analysis and support of subjective decisions, there are important application cases, particularly in managerial problems, when the decision maker prefers to avoid specifying her/his preferences and needs decision analysis - e.g., ranking of decision options - that is as objective as possible. An approach to decision support that might be easily adapted for such objective ranking is the reference point methodology; its application is shown on examples. One of these examples is actually not an application of the methodology, but a real life problem that motivated the development of objective ranking. The examples illustrate that objective ranking might be important for management, including also management of telecommunication networks.
Źródło:
Journal of Telecommunications and Information Technology; 2008, 3; 15-23
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New method for finding a reference point in fingerprint images with the use of the IPAN99 algorithm
Autorzy:
Wróbel, K.
Doroz, R.
Powiązania:
https://bibliotekanauki.pl/articles/333037.pdf
Data publikacji:
2009
Wydawca:
Uniwersytet Śląski. Wydział Informatyki i Nauki o Materiałach. Instytut Informatyki. Zakład Systemów Komputerowych
Tematy:
odcisk
punkt odniesienia
IPAN99
fingerprint
reference point
Opis:
This study presents a new method for finding a reference point in fingerprint images. The proposed method is based on the IPAN99 algorithm, which detects high curvature points on a contour of a graphical object. This algorithm was adjusted in the study to detect high curvature points on friction ridges. It allows locating a reference point on a fingerprint image. Since the IPAN99 algorithm requires that the thickness of an analysed contour should be of one pixel, each fingerprint image was adequately prepared before submitting to the analysis with the IPAN99 algorithm. Evaluation of the efficiency of the method consisted in comparing the distances between coordinates of reference points determined with the use of the proposed method and indicated by an expert. The developed method was compared with other algorithms used for determining a reference point.
Źródło:
Journal of Medical Informatics & Technologies; 2009, 13; 59-63
1642-6037
Pojawia się w:
Journal of Medical Informatics & Technologies
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reference Point Method with Importance Weighted Partial Achievements
Autorzy:
Ogryczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/307978.pdf
Data publikacji:
2008
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
aggregation methods
multicriteria decision making
reference point method
WOWA
Opis:
The reference point method (RPM) is based on the so-called augmented max-min aggregation where the worst individual achievement maximization process is additionally regularized with the average achievement. In order to avoid inconsistencies caused by the regularization, we replace it with the ordered weighted average (OWA) which combines all the individual achievements allocating the largest weight to the worst achievement, the second largest weight to the second worst achievement, and so on. Further following the concept of the weighted OWA (WOWA) we incorporate the importance weighting of several achievements into the RPM. Such a WOWA RPM approach uses importance weights to affect achievement importance by rescaling accordingly its measure within the distribution of achievements rather than by straightforward rescaling of achievement values. The recent progress in optimization methods for ordered averages allows us to implement the WOWA RPM quite effectively as extension of the original constraints and criteria with simple linear inequalities.
Źródło:
Journal of Telecommunications and Information Technology; 2008, 4; 17-25
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reference distribution based decision support platform
Autorzy:
Breja, K.
Ogryczak, W.
Powiązania:
https://bibliotekanauki.pl/articles/308085.pdf
Data publikacji:
2008
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
multiple criteria optimization
decision support systems
reference point method
reference distribution method
Opis:
There many decision problems where numerous partial achievement functions are considered impartially which makes the distribution of achievements more important than the assignment of several achievements to the specific criteria. Such models are generally related to the evaluation and optimization of various systems which serve many users where quality of service for every individual user defines the criteria. This applies to various technical systems, like to telecommunication ones among others, as well as to social systems. An example arises in location theory, where the clients of a system are entitled to equal treatment according to some community regulations. This paper presents an implementation of decision support framework for such problems. This platform is designed for multiple criteria problems analyzed with the reference distribution approach. Reference distribution approach is an extension of the reference point method.
Źródło:
Journal of Telecommunications and Information Technology; 2008, 3; 5-14
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using individual and common reference points to measure the performance of alternatives in multiple criteria evaluation
Autorzy:
Roszkowska, Ewa
Filipowicz-Chomko, Marzena
Wachowicz, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/1181960.pdf
Data publikacji:
2020
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
reference point
aspiration level
distance measure
MCDM method
smart growth
Opis:
When evaluating or ordering alternatives concerning given multiple criteria, decision-makers often use aspiration and reservation levels for criteria, which allows them to define some reference alternatives that build a common framework for the evaluation. In this paper, new multiple criteria approach, called distances to aspiration reference points (DARP), is presented, which can be implemented in a specific evaluation or ranking problem when many different aspiration levels should be taken into consideration. One example of such problem is measuring sustainable development of countries or states within the Union. In DARP, to measure the performance of alternative (state), the notion of distances between alternative and individual or common aspiration reference points is used. To manage the problem of different reference points, a modified max-min normalisation technique is proposed. DARP application for measuring smart growth of the EU countries is conducted to demonstrate the effectiveness of the proposed method.
Źródło:
Operations Research and Decisions; 2020, 30, 3; 77--96
2081-8858
2391-6060
Pojawia się w:
Operations Research and Decisions
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Weight versus reference point multiple criteria decision making methods - analogies and differences
Autorzy:
Kaliszewski, I.
Powiązania:
https://bibliotekanauki.pl/articles/307708.pdf
Data publikacji:
2003
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
podejmowanie decyzji
multiple criteria decision making
weight methods
reference point methods
Opis:
In this work we shall be concerned with interactive multiple criteria decision making methods. We show how on the technical level the class of reference point methods can be reduced to the class of weight methods. Though methods from these two classes represent two different interactive decision making paradigms, the equivalence observed opens a way for a joint implementation of a pair of methods each representing a different class. This would establish a firm ground for systematic comparison of both classes of methods as well as for hybrid schemes mixing decisional tools specific for each class.
Źródło:
Journal of Telecommunications and Information Technology; 2003, 3; 9-15
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of multiple criteria evolutionary algorithms to vector optimisation, decision support and reference point approaches
Autorzy:
Szczepański, M.
Wierzbicki, A.P.
Powiązania:
https://bibliotekanauki.pl/articles/307706.pdf
Data publikacji:
2003
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
algorytm ewolucyjny
optymalizacja wektorowa
evolutionary algorithm
vector optimisation
nadir point estimation
reference point techniques
Opis:
Multiple criteria evolutionary algorithms, being essentially parallel in their character, are a natural instrument of finding a representation of entire Pareto set (set of solutions and outcomes non-dominated in criteria space) for vector optimisation problems. However, it is well known that Pareto sets for problems with more than two criteria might become complicated and their representation very time-consuming. Thus, the application of such algorithms is essentially limited to bi-criteria problems or to vector optimisation problems with more criteria but of simple structure. Even in such cases, there are problems related to various important aspects of vector optimisation, such as the uniformity of representation of Pareto set, stopping tests or the accuracy of representing Pareto set, that are not fully covered by the broad literature on evolutionary algorithms in vector optimisation. These problems and related computational tests and experience are discussed in the paper. In order to apply evolutionary algorithms for decision support, it would be helpful to use them in an interactive mode. However, evolutionary algorithms are in their essence global and of batch type. Nevertheless, it is possible to introduce interactive aspects to evolutionary algorithms by focusing them on a part of Pareto set. The results of experimental tests of such modifications of evolutionary algorithms for vector optimisation are presented in the paper. Another issue related to vector optimisation problems with more than two criteria is the computational difficulty of estimating nadir points of Pareto set. The paper describes the use of diverse variants of evolutionary algorithms to the estimation of nadir points, together with experimental evidence.
Źródło:
Journal of Telecommunications and Information Technology; 2003, 3; 16-33
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A reference point method to triple-objective assignment of supporting services in a healthcare institution
Autorzy:
Sawik, B.
Powiązania:
https://bibliotekanauki.pl/articles/375985.pdf
Data publikacji:
2010
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
reference point method
assignment problem
mixed-integer programming
services operations management
healthcare planning
Opis:
This paper presents an application of mixed integer programming model for optimal allocation of workers among supporting services in a hospital. The services include logistics, inventory management, financial management, operations management, medical analysis, etc. The optimality criterion of the problem is to minimize operational costs of supporting services subject to some specific constraints. The constraints represent specific conditions for resource allocation in a hospital. The overall problem is formulated as a triple-objective assignment model, where the decision variables represent the assignment of people to various jobs. A reference point approach with the Chebyshev metric is applied for the problem solution. The results of computational experiments modeled on a real data from a hospital in Lesser Poland are reported.
Źródło:
Decision Making in Manufacturing and Services; 2010, 4, 1-2; 37-46
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Teaching the English active and passive voice with the help of cognitive grammar: An empirical study
Autorzy:
Pawlak, Mirosław
Mystkowska-Wiertelak, Anna
Bielak, Jakun
Powiązania:
https://bibliotekanauki.pl/articles/780846.pdf
Data publikacji:
2013-12
Wydawca:
Uniwersytet im. Adama Mickiewicza w Poznaniu
Tematy:
pedagogical application of cognitive grammar
active and passive voice
reference point model
subject
topic
Opis:
Functionally-oriented linguistic theories, such as cognitive grammar (CG), offer nuanced descriptions of the meanings and uses of grammatical features. A simplified characterization of the semantics of the English active and passive voice grounded in CG terms and based on the reference point model is presented, as it is the basis of the instructional treatment offered to one of the groups in the quasiexperimental study reported in the paper. The study compares the effects of feature- focused grammatical instruction covering the form and meaning/use of the English voices based on CG with those of teaching based on standard pedagogical grammar rules. The results point to relatively high effectiveness of both instructional options in fostering the use of the target structures in both more controlled and more spontaneous performance, with traditional instruction being more successful than that based on CG with respect to the latter. A possible explanation of this superiority is that the subset of the participants (n = 27) exposed to the traditional explanations found them simple and easy to apply, contrary to the situation in the other group.
Źródło:
Studies in Second Language Learning and Teaching; 2013, 3, 4; 581-619
2083-5205
2084-1965
Pojawia się w:
Studies in Second Language Learning and Teaching
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A reference point approach to bi-objective dynamic portfolio optimization
Autorzy:
Sawik, B.
Powiązania:
https://bibliotekanauki.pl/articles/375931.pdf
Data publikacji:
2009
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
dynamic portfolio
mixed-integer programming
reference point method
bi-objective optimization
value-at-risk
Opis:
The portfolio selection problem presented in this paper is formulated as a bi-objective mixed integer program. The portfolio selection problem considered is based on a dynamic model of investment, in which the investor buys and sells securities in successive investment periods. The problem objective is to dynamically allocate the wealth on different securities to optimize by reference point method the portfolio expected return and the probability that the return is not less than a required level. In computational experiments the dataset of daily quotations from the Warsaw Stock Exchange were used.
Źródło:
Decision Making in Manufacturing and Services; 2009, 3, 1-2; 73-85
1896-8325
2300-7087
Pojawia się w:
Decision Making in Manufacturing and Services
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The MOORA method and its application to privatization in a transition economy
Autorzy:
Brauers, W. K.
Zavadskas, E. K.
Powiązania:
https://bibliotekanauki.pl/articles/969961.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
multi-objective optimization
alternative measurement
discrete alternatives
ratio analysis
sub-objectives
reference point method
Opis:
A new method is proposed for multi-objective optimization with discrete alternatives: MOORA (Multi-Objective Optimization on the basis of Ratio Analysis). This method refers to a matrix of responses of alternatives to objectives, to which ratios are applied. A well established other method for multi-objective optimization is used for comparison, namely the reference point method. Later on, it is demonstrated that this is the best choice among the different competing methods. In MOORA the set of ratios has the square roots of the sum of squared responses as denominators. These ratios, as dimensionless. seem to be the best choice among different ratios. These dimensionless ratios, situated between zero and one, are added in the case of maximization or subtracted in case of minimization. Finally, all alternatives are ranked, according to the obtained ratios. Eventually, to give more importance to an objective, an objective can be replaced by different sub-objectives or a coefficient of importance can be specified. An example on privatization in a transition economy illustrates the application of the method. If application is situated originally in a "welfare" economy, centered on production, MOORA becomes even more significant in a 'wellbeing economy", where consumer sovereignty is assumed.
Źródło:
Control and Cybernetics; 2006, 35, 2; 445-469
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fair and efficient network dimensioning with the reference point methodology
Autorzy:
Goryczak, W.
Wierzbicki, A.
Milewski, M.
Powiązania:
https://bibliotekanauki.pl/articles/308918.pdf
Data publikacji:
2006
Wydawca:
Instytut Łączności - Państwowy Instytut Badawczy
Tematy:
multiple criteria optimization
efficiency
fairness
equity
reference point method
teleconsultations
network design
elastic traffic
Opis:
The dimensioning of telecommunication networks that carry elastic traffic requires the fulfillment of two conflicting goals: maximizing the total network throughput and providing fairness to all flows. Fairness in telecommunication network design is usually provided using the so-called max-min fairness (MMF) approach. However, this approach maximizes the performance of the worst (most expensive) flows which may cause a large worsening of the overall throughput of the network. In this paper we show how the concepts of multiple criteria equitable optimization can be effectively used to generate various fair and efficient allocation schemes. We introduce a multiple criteria model equivalent to equitable optimization and we develop a corresponding reference point procedure for fair and efficient network dimensioning for elastic flows. The procedure is tested on a sample network dimensioning problem for elastic traffic and its abilities to model various preferences are demonstrated.
Źródło:
Journal of Telecommunications and Information Technology; 2006, 4; 21-30
1509-4553
1899-8852
Pojawia się w:
Journal of Telecommunications and Information Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Determination of vertical displacements in relative monitoring networks
Wyznaczanie przemieszczeń pionowych we względnych sieciach monitoringu
Autorzy:
Filipiak-Kowszyk, Daria
Kamiński, Waldemar
Powiązania:
https://bibliotekanauki.pl/articles/231502.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
przemieszczenie pionowe
układ odniesienia niestabilny
punkt referencyjny
sieć monitoringu
vertical displacement
unstable reference system
reference point
monitoring network
Opis:
The problem of determining displacements of objects is an important and current issue, in particular in terms of operational safety. This is a requirement that covers geodetic, periodic control measurements in order to determine horizontal and vertical displacements. The paper is focused on the analysis of vertical displacements. Geodetic measurements and their interpretation allow to reduce the risk of possible structural catastrophes. The major research topic of the majority of available papers is displacement determination of individual controlled points, in a situation where there are identified as fixed reference points. There are cases making identification of such points difficult or impossible to use in displacement analysis. This paper addresses a rare case of determining vertical displacements in unstable reference systems. Due to the fact that most of the existing and known literature methods do not always bring satisfactory results, the paper propose a new method of vertical displacement determination in the absence of reference points in the local coordinate system. Practical considerations on simulated data show that the presented method performs the task correctly.
Problematyka wyznaczania przemieszczeń obiektów jest ważnym zagadnieniem, w szczególności w aspekcie dotyczącym bezpieczeństwa użytkowania obiektu. Zmiany poziomu zwierciadła wody, głębokie wykopy, obciążenie gruntu ciężką budowlą, zużycie konstrukcji na skutek jej eksploatacji to tylko kilka czynników mogących powodować ruchy gruntu i posadowionych na nim obiektów. Konsekwencją ruchów gruntu mogą być przemieszczenia poziome i pionowe. Zatem istotne jest określenie wielkości tych przemieszczeń, na co pozwalają okresowe pomiary kontrolne. W analizie przemieszczeń wyróżnić można układy odniesienia stabilne oraz niestabilne. Praca ta skupia się na wyznaczaniu przemieszczeń pionowych w niestabilnych układach odniesienia, zatem porusza problem, który rzadko prezentowany jest w literaturze przedmiotu.
Źródło:
Archives of Civil Engineering; 2020, 66, 1; 309-326
1230-2945
Pojawia się w:
Archives of Civil Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
THE REFERENCE POINT METHOD APPLIED TO DECISION SELECTION IN THE PROCESS OF BILATERAL NEGOTIATIONS
Autorzy:
Łodziński, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/453716.pdf
Data publikacji:
2014
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Katedra Ekonometrii i Statystyki
Tematy:
negotiation process
multi-criteria optimization
equitably effective decision
scalar function
method of the reference point
Opis:
The paper presents a method of supporting the decision selection in the process of bilateral negotiations. The negotiation process is modeled as using a multi-criteria optimization. The method of finding solutions is the interactive selection process of some proposals. The parties shall submit their proposals to the subjects of the negotiations. These proposals are parameters of the multi-criteria optimization tasks. Selection of solutions is accomplished by solving the optimization task with parameters that define the aspirations of each party involved in the negotiations. Finally, evaluation of the solutions obtained by the parties is done.
Źródło:
Metody Ilościowe w Badaniach Ekonomicznych; 2014, 15, 2; 144-156
2082-792X
Pojawia się w:
Metody Ilościowe w Badaniach Ekonomicznych
Dostawca treści:
Biblioteka Nauki
Artykuł

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