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    Wyświetlanie 1-11 z 11
    Tytuł:
    Teaching assistant selection in Thailand by using an extended VIKOR based on piecewise linear approximation of fuzzy numbers
    Autorzy:
    Narabin, Akan
    Samutrak, Phairoj
    Powiązania:
    https://bibliotekanauki.pl/articles/27315328.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    multi-criteria decision-making
    extended VIKOR
    teaching assistant
    Thailand
    Opis:
    Because of the COVID-19 situation, selection for a teaching assistant position to get a TA scholarship in a university in Thailand needs to be performed online by the formed committee. Due to the online process and the limited number of scholarships offered by the university, beyond the face-to-face interview, multiple-criteria decision analysis can help to select a proper student. In this study, we use the extended VIKOR method with fuzzy numbers to help committees to select the students from the applicants. The criteria and the weights of the criteria are provided with the help of committees. Both trapezoidal and triangular linguistic variables are used to find the solution and to observe the range of the possible result. The different weights supporting the strategy of maximum group utility are varied to detect the potential alternatives. The ranking results are also compared with the one obtained from the TODIM approach to illustrate the appropriate alternative.
    Źródło:
    Operations Research and Decisions; 2023, 33, 3; 89--104
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The extention rank ordering criteria weighting methods in fuzzy enviroment
    Autorzy:
    Roszkowska, Ewa
    Powiązania:
    https://bibliotekanauki.pl/articles/406326.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    multi-criteria decision analysis
    criteria weights
    criteria ranking
    fuzzy criteria ranking
    fuzzy criteria weights
    Opis:
    Weight elicitation is an important part of multi-criteria decision analysis. In real-life decisionmaking problems precise information is seldom available, and providing weights is often cognitively demanding as well as very time- and effort-consuming. The judgment of decision-makers (DMs) depends on their knowledge, skills, experience, personality, and available information. One of the weights determination approaches is ranking the criteria and converting the resulting ranking into numerical values. The best known and most widely used are rank sum, rank reciprocal and centroid weights techniques. The goal of this paper is to extend rank ordering criteria weighting methods for imprecise data, especially fuzzy data. Since human judgments, including preferences, are often vague and cannot be expressed by exact numerical values, the application of fuzzy concepts in elicitation weights is deemed relevant. The methods built on the ideas of rank order techniques take into account imprecise information about rank. The fuzzy rank sum, fuzzy rank reciprocal, and fuzzy centroid weights techniques are proposed. The weights obtained for each criterion are triangular fuzzy numbers. The proposed fuzzy rank ordering criteria weighting methods can be easily implemented into decision support systems. Numerical examples are provided to illustrate the practicality and validity of the proposed methods.
    Źródło:
    Operations Research and Decisions; 2020, 30, 2; 91-114
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in the relative situation of district hospitals in Poland after the introduction of a system of basic hospital service provision in 2017
    Autorzy:
    Sielska, Agata
    Powiązania:
    https://bibliotekanauki.pl/articles/2175851.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    district hospital
    healthcare system
    operating costs
    employment
    multi-criteria ranking
    Opis:
    The most recent big reform of the Polish health system took place in 2017 and introduced a basic hospital service provision system. Hospitals were able to be included in the network and receive flat-rate financing from the National Health Fund. The current paper aimsto assess how the relative situation of hospitals changed between 2015 and 2018. This study is based on multicriteria rankings which take into account the values of profit/loss on sales, the contract with the NHF, the income from health services outside the NHF, the income from rental and lease, the employment of doctors, the employment of nurses, liabilities, operating costs, and interns and residents per hospital bed. The similarity of rankings constructed using different methods is shown. Based on the results of the Chi-squared test, it can be concluded that the inclusion in the network does not affect whether the relative situation of a hospital between 2015 and 2018 improved or not. In the regression analysis, the dummy variable for level 1 hospital was negatively related to the median rank; however, this impact was not statistically significant.
    Źródło:
    Operations Research and Decisions; 2022, 32, 3; 124--141
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-criteria human resources planning optimisation using genetic algorithms enhanced with MCDA
    Autorzy:
    Jurczak, Marcin
    Miebs, Grzegorz
    Bachorz, Rafał A.
    Powiązania:
    https://bibliotekanauki.pl/articles/2204085.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    mathematical optimisation
    multi-criteria optimisation
    scheduling
    job shop problem
    MCDA
    Opis:
    The main objective of this paper is to present an example of the IT system implementation with advanced mathematical optimisation for job scheduling. The proposed genetic procedure leads to the Pareto front, and the application of the multiple criteria decision aiding (MCDA) approach allows extraction of the final solution. Definition of the key performance indicator (KPI), reflecting relevant features of the solutions, and the efficiency of the genetic procedure provide the Pareto front comprising the representative set of feasible solutions. The application of chosen MCDA, namely elimination et choix traduisant la réalité (ELECTRE) method, allows for the elicitation of the decision maker (DM) preferences and subsequently leads to the final solution. This solution fulfils all of the DM expectations and constitutes the best trade-off between considered KPIs. The proposed method is an efficient combination of genetic optimisation and the MCDA method.
    Źródło:
    Operations Research and Decisions; 2022, 32, 4; 57--74
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Integrating queue theory and multi-criteria decision-making tools for selecting roll-over car washing machine
    Autorzy:
    Ozcalici, Mehmet
    Powiązania:
    https://bibliotekanauki.pl/articles/27315338.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    queue theory
    multi-criteria decision-making
    TOPSIS
    EDAS
    CoCoSo
    TODIM
    Opis:
    The study aims to develop a decision-making framework by integrating queuing theory and multi-criteria decision-making (MCDM) tools, namely TOPSIS, EDAS, CoCoSo, and TODIM to select a roll-over car washing machine for an oil station. The queue, technical and financial characteristics of the alternatives are added to the decision-making process. The decision matrix includes five criteria and five alternatives. One million weight sets are created randomly, and MCDM techniques are applied to interpret the results statistically. Results indicate that Alternative 3 is statistically superior to the others. The proposed procedure can help decision makers to make decisions when expert knowledge isn’t available, and it can be applied for other purposes by making small changes.
    Źródło:
    Operations Research and Decisions; 2023, 33, 2; 99--119
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The energy of interval valued neutrosophic matrix in decision-making to select the manager for the company project
    Autorzy:
    Donbosco, Jeni Seles Martina
    Ganesan, Deepa
    Powiązania:
    https://bibliotekanauki.pl/articles/27315316.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    neutrosophic set
    matrix energy
    interval-valued neutrosophic matrix
    multi-criteria decision-making
    Opis:
    The concept of energy in graphs and matrices is used effectively in all application areas. The energy of the matrix is an extension of graph energy. The usage of the energy idea in neutrosophic matrices makes it more flexible and applicable in multi-criteria decision-making environments. In this paper, we propose the energy approach in neutrosophic matrices with interval values. We determined the given energy’s upper and lower bounds. The energy is used of the interval-valued neutrosophic matrix to address the MCDM problem. A new strategy has been introduced called the interval-valued neutrosophic energy method to solve this problem. We look at the problem of choosing a qualified manager for a business project. A team of professionals in the company evaluates the options using neutrosophic numbers with interval values, and the energy method is then used to calculate the result. The result has been compared with the TOPSIS method results to show that the outcomes are similar.
    Źródło:
    Operations Research and Decisions; 2023, 33, 4; 35--51
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A literature review of interval-valued intuitionistic fuzzy multi-criteria decision-making methodologies
    Autorzy:
    Kokoç, Melda
    Ersöz, Süleyman
    Powiązania:
    https://bibliotekanauki.pl/articles/2100434.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    multi-criteria decision-making
    review
    interval-valued intuitionistic fuzzy set
    MCDM
    MADM
    Opis:
    Multi-criteria decision-making (MCDM) is one of the most popular problems handled by researchers in the literature. Since the interval-valued intuitionistic fuzzy set (IVIFS) theory generates as realistic as possible evaluation of linguistic expressions, researchers have been expanding traditional MCDM methods to the IVIF environment, especially in the last decade. This study provides a literature review of the relevant articles from several academic databases on applications of IVIF-MCDM methods. The review of 131 publications addresses specific research questions. To understand the research publication trend, this review offers a visual analysis that examines the studies from different perspectives, such as application areas, IVIF-MCDM methods, citations, most relevant journals, and validation methods. One of the most remarkable results of the literature review is that most publications in this field are published in SCIE indexed journals. Another noteworthy issue is that China is the country that produces the most articles in this field. In addition, English journals are mostly selected for the publication of articles. While it is seen that the investment selection problem is chosen mostly as the application area, the TOPSIS method is preferred mostly in the applications. This study stands out as the most comprehensive one that compiles publications containing extended traditional MCDM methods for IVIF sets. This review will be an important reference for future researchers and decision-makers involved in advancing MCDM methods considering vagueness and ambiguity.
    Źródło:
    Operations Research and Decisions; 2021, 31, 4; 89--116
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analytical and simulation determination of order picking time in a low storage warehouse for shared storage systems
    Autorzy:
    Dmytrów, Krzysztof
    Powiązania:
    https://bibliotekanauki.pl/articles/2175840.pdf
    Data publikacji:
    2022
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    warehouse management
    order picking
    shared storage
    multi-criteria decision-making
    simulation method
    Opis:
    The aim of the research is comparison between average order picking times obtained using the analytical model and simulation methods for shared storage systems. We also compare the results obtained with the results obtained for dedicated storage. We assume the random and ABC-class storage (with within and across aisle storage policies). We select the locations by means of the TOPSIS method for two take-out strategies: quantity adjustment (QA) and priority of partial units (PPU). We determine the route by using s-shape and return heuristics. In most cases, the simulated average order picking times are shorter than the analytical ones. It results from not considering the criteria’ weights in calculation of the analytical order picking time. Also, the results for shared storage with QA strategy are in most cases better than for dedicated storage. This might imply an advantage of shared over dedicated storage, but needs further confirmation.
    Źródło:
    Operations Research and Decisions; 2022, 32, 2; 34--51
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Scenario planning as a new application area for TOPSIS
    Autorzy:
    Gaspars-Wieloch, Helena
    Powiązania:
    https://bibliotekanauki.pl/articles/27315335.pdf
    Data publikacji:
    2023
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    TOPSIS
    scenario planning
    uncertainty
    certainty
    one-criterion decision-making
    multi-criteria decision-making
    rankings
    Opis:
    TOPSIS is a well-known approach applied to multi-criteria decision-making under certainty (M-DMC). However, recently, some analogies between this domain and scenario-based one-criterion decision-making under uncertainty (1-DMU) have been revealed in the literature. Thus, the similarities aforementioned give the possibility to adjust TOPSIS to another area. The goal of the paper is to create a new method for problems with non-deterministic parameters on the basis of TOPSIS ideas. In the suggested approach criteria weights (declared within TOPSIS) are replaced by subjective chances of occurrence which are estimated for each scenario. The novel method has an advantage over existing classical decision rules designed for 1-criterion decision-making under uncertainty since within this procedure each payoff connected with a given option is compared with the positive and negative-ideal solutions.
    Źródło:
    Operations Research and Decisions; 2023, 33, 2; 23--34
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Multi-method and multi-criteria decision analysis of objects in a computerized decision support system
    Autorzy:
    Becker, J.
    Becker, A.
    Budziński, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/406607.pdf
    Data publikacji:
    2017
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    multi-criteria decision analysis
    ranking
    grouping
    allocation of resources
    computerized decision support system
    DSS
    Opis:
    A multimethod approach to the multicriteria analysis and assessment of objects (rankings, grouping, econometric assessments) have been presented. This issue is a field of research and engineering associated with the construction and application of a computerized decision support system (DSS 2.0). In terms of the proposed approach, the functionality of the developed prototype has been illustrated based on a practical example of the assessment of employees and the analysis of remuneration. The Electre TRI method of grouping derived from a relational model complements ranking methods well (e.g., AHP) based on the functional model. Grouping reveals cases, where all or the vast majority of objects in a ranking were clustered within one class (e.g., in the best or the worst one).
    Źródło:
    Operations Research and Decisions; 2017, 27, 3; 21-33
    2081-8858
    2391-6060
    Pojawia się w:
    Operations Research and Decisions
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Urban solid waste landfill selection by SDSS. Case study: Hamadan
    Autorzy:
    Kahvand, M.
    Gheitarani, N.
    Khanian, M.
    Ghadarjani, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/208187.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    landfill
    decision making
    geographic information systems
    municipal solid waste
    solid wastes
    multi-criteria decision making
    solid waste landfill
    urban wastes
    składowisko
    podejmowanie decyzji
    systemy informacji geograficznej
    stałe odpady komunalne
    odpady stałe
    wielokryterialne podejmowanie decyzji
    wysypisko odpadów stałych
    odpady miejskie
    Opis:
    One of the major problems human beings are confronted with in urban setting is the removal of urban waste. This problem has persuaded the urban authorities to use various tools such as Geographic Information System (GIS) to locate landfills. To do that, Sloan Digital Sky Survey (SDSS) has been used in which or multi-criteria decision making (MCDM) methods and GIS are combined. The selection of the burial place and landfill has great importance and different criteria must be considered. SDSS, using MCDM is able to investigate locating landfill using various criteria simultaneously and it determines its importance. This research aims at presenting suitable solution through using computer and GIS related to solid urban waste and their locating in Hamadan based on standard criteria. A comprehensive model based on GIS, to get the suitable burial place and landfill can help to save time and cost. The model of locating burial place of urban solid waste has been presented.
    Źródło:
    Environment Protection Engineering; 2015, 41, 2; 47-56
    0324-8828
    Pojawia się w:
    Environment Protection Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

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