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    Wyświetlanie 1-4 z 4
    Tytuł:
    A Fuzzy Multicriteria Approach for the Trading Systems on the Forex Market
    Autorzy:
    Juszczuk, Przemysław
    Kruś, Lech
    Powiązania:
    https://bibliotekanauki.pl/articles/578475.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Trading
    Wielokryterialne podejmowanie decyzji
    Zbiory rozmyte
    Fuzzy sets
    Multicriteria decision making
    Opis:
    The paper relates to the trading systems supporting traders ma- king decision on the forex market. Typical trading systems using tech- nical analysis generate a buy or sell signal when the technical indicator crosses a given oversell or overbought levels. The paper extends the approach in which the above strict crisp conditions are replaced by fuzzy relations. The indicators are treated not independently as it is in the typical systems but jointly. Currency pairs are compared in the muliticriteria space in which each criterion is dened by a membership function referring to a given indicator. New formulations of the mem- bership functions for dierent indicators are proposed. General ideas of the algorithm generating non-dominated alternatives in the multi- criteria space are presented. The algorithm has been implemented in an experimental system. Computational results for dierent time win- dows using real-world data from the forex market are presented and discussed.
    Źródło:
    Multiple Criteria Decision Making; 2019, 14; 29-43
    2084-1531
    Pojawia się w:
    Multiple Criteria Decision Making
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Supporting Multicriteria Fuzzy Decisions on the Forex Market
    Autorzy:
    Juszczuk, Przemysław
    Kruś, Lech
    Powiązania:
    https://bibliotekanauki.pl/articles/578572.pdf
    Data publikacji:
    2017
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Decision support
    Foreign exchange
    Fuzzy sets
    Obrót dewizowy
    Wspomaganie decyzji
    Zbiory rozmyte
    Opis:
    This paper deals with decisions made by a decision maker using technical analysis on the Forex market. For a number of currency pairs on the market the decision maker obtains buy or sell signals from transaction systems using technical analysis indicators. The signal is generated only when the assumed conditions are satised for a given indicator. The information characterizing every market situation and presented to the decision maker is binary: he either obtains the signal or does not. In this paper a fuzzy multicriteria approach is proposed to extend and valuate information for the analysis of the market situation. The traditional approach with binary characterization of the market situations, referred to as a crisp approach, is replaced by a fuzzy approach, in which the strict conditions for which the crisp signal was generated are fuzzy. The eciency of a given currency pair is estimated using values from the range <0,1> and is dened by the membership function for each technical indicator. The values calculated for dierent indicators are treated as criteria. The eciency of a given currency pair can be analyzed jointly for several indicators. The currency pairs are compared in the multicriteria space in which domination relations, describing preferences of the decision maker, are introduced. An algorithm is proposed which generates Pareto-optimal variants of currency pairs presented to the decision maker. The method proposed allows to extend the number of analyzed currency pairs, without signicantly increasing the computation time.
    Źródło:
    Multiple Criteria Decision Making; 2017, 12; 60-74
    2084-1531
    Pojawia się w:
    Multiple Criteria Decision Making
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multicriteria Fuzzy Evaluation of Project Success in R&D Projects
    Autorzy:
    Kuchta, Dorota
    Powiązania:
    https://bibliotekanauki.pl/articles/578514.pdf
    Data publikacji:
    2019
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Projekt badawczo-rozwojowy
    Sukces projektu
    Zbiory rozmyte
    Fuzzy sets
    Project success
    Research and development project
    Opis:
    The paper reviews the state of art in project success evaluation, especially with respect to R&D projects, with emphasis on the ambiguity of such evaluation, its strong dependence on the con-text and on the evaluator. We also recall basic information about fuzzy numbers and propose the concept of fuzzy rules which are used in the suggested procedure of R&D project evaluation. The procedure is described and illustrated by means of a real- -world case study.
    Źródło:
    Multiple Criteria Decision Making; 2019, 14; 44-59
    2084-1531
    Pojawia się w:
    Multiple Criteria Decision Making
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Using a Fuzzy Approach in Multi-Criteria Decision Making with Multiple Alternatives in Health Care
    Autorzy:
    Jakubczyk, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/578606.pdf
    Data publikacji:
    2015
    Wydawca:
    Uniwersytet Ekonomiczny w Katowicach
    Tematy:
    Efektywność kosztowa
    Finansowanie ochrony zdrowia
    Ochrona zdrowia
    Technologia medyczna
    Zbiory rozmyte
    Cost effectiveness
    Fuzzy sets
    Health care financing
    Health care protection
    Medical technology
    Opis:
    One of the responsibilities of the health care sector regulator is to decide which health technologies (drugs, procedures, diagnostic tests, etc.) should be financed using public resources. That requires taking into account multiple criteria, of which two important ones are: cost and effectiveness of a technology (others being, e.g., prevalence, safety, ethical and social implications). Hence, health and wealth need to be traded off against each other, and hence the willingness-to-pay (WTP) has to be determined. Various approaches to setting WTP have been taken, yet the results differ substantially. In the present paper I claim that the proper approach is to treat WTP as a fuzzy concept (the decision maker may not be able to decidedly state that a given health-wealth trade-off coefficient is acceptable/unacceptable - an idea backed up by the survey presented in the paper). Previous research shows how this fuzzy approach can be embedded in defining the preference relation and pairwise comparisons. In the present paper I account for the fact that there are often more than two alternatives available. To avoid difficulties that might arise (e.g., incompleteness or intransitivity of preferences) I show how the fuzzy approach can be used to define a fuzzy choice function based on the axiomatic approach. Some properties are discussed (e.g., how the approach handles the dominance and extended dominance), and the directions of further research are hinted at.
    Źródło:
    Multiple Criteria Decision Making; 2015, 10; 65-81
    2084-1531
    Pojawia się w:
    Multiple Criteria Decision Making
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-4 z 4

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