Browsing Moksliniai ir apžvalginiai straipsniai / Research and Review Articles by VGTU prioritized fields "FM0101 - Fizinių, technologinių ir ekonominių procesų matematiniai modeliai / Mathematical models of physical, technological and economic processes"
Now showing items 1-20 of 239
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A bi-objective model for scheduling construction projects using critical chain method and interval-valued fuzzy sets
(Buildings: Intelligent Multi-Criteria Decision-Making Methodologies in Building and Construction Management, 2022)Numerous constraints affect construction projects, and lack of management may lead to schedule deviation. In the execution phase of the project, due to the lack of timely access to the required resources and the existence ... -
A bibliometric analysis of Symmetry (2009–2019)
(Symmetry, 2020)Symmetry is an international journal in the research fields of physics, chemistry, biology, mathematics, computer science, theory and methods, and other scientific disciplines and engineering. The first paper was published ... -
A compact higher-order finite-difference scheme for the wave equation can be strongly non-dissipative on non-uniform meshes
(Applied mathematics letters, 2021)We study necessary conditions for stability of a Numerov-type compact higher-order finite-difference scheme for the 1D homogeneous wave equation in the case of non-uniform spatial meshes. We first show that the uniform in ... -
A comparative analysis of mathematical methods for homogeneity estimation of the Lithuanian population
(Acta medica Lituanica, 2019)Population genetic structure is one of the most important population genetic parameters revealing its demographic features. The aim of this study was to evaluate the homogeneity of the Lithuanian population on the basis ... -
A comparative analysis of the rank reversal phenomenon in the EDAS and TOPSIS methods
(Economic computation and economic cybernetics studies and research, 2018)The rank reversal (RR) phenomenon could occur when new information about alternatives or criteria is added to the decision space of a discrete multi-criteria decision-making (MCDM) problem. If this addition leads to a ... -
A comparison of discrete schemes for numerical solution of parabolic problems with fractional power elliptic operators
(Mathematics: Section Computational and Applied Mathematics, 2021)The main aim of this article is to analyze the efficiency of general solvers for parabolic problems with fractional power elliptic operators. Such discrete schemes can be used in the cases of non-constant elliptic operators, ... -
A framework for project delivery systems via hybrid fuzzy risk analysis: Application and extension in ICT
(Mathematics: Special issue: Data driven decision-making under uncertainty (D3U), 2022)One of the essential factors of project success is selecting the proper delivery method. This study aimed to provide a new hybrid decision-making framework to assist project stakeholders in evaluating and selecting the ... -
A fuzzy extension of simplified best-worst method (F-SBWM) and its applications to decision-making problems
(Symmetry: Special issue: Symmetric and asymmetric data in solution models, Part II), 2023)Today, most of the issues and challenges faced by managers and decision makers are complex and multifaceted. More clearly, due to the developments of technologies, emerging trends in various industries, competitive markets, ... -
A fuzzy simultaneous evaluation of criteria and alternatives (F-SECA) for sustainable e-waste scenario management
(Sustainability: Electronic Waste Management and Sustainable Development, 2022)The process of production, consumption, and final disposal of electrical and electronic equipment usually leads to harmful waste to the environment called e-waste. Eliminating and decreasing this type of waste could be ... -
A hybrid fuzzy-stochastic multi-criteria ABC inventory classification using possibilistic chance-constrained programming
(Soft computing, 2021)Inventory classification is a fundamental issue in the development of inventory policy that assigns each inventory item to several classes with different levels of importance. This classification is the main determinant ... -
A lattice model for elastic particulate composites
(Materials, 2018)In the present article, a version of the lattice or spring network method is proposed to model the mechanical response of elastic particulate composites with a high volume fraction of spherical particles and with a much ... -
A local limit theorem for coefficients of modified Borwein's method
(Glasnik matematički. Ser.III, 2019)The paper extends the study of the modified Borwein method for the calculation of the Riemann zeta-function. It presents an alternative perspective on the proof of a local limit theorem for coefficients of the method. The ... -
A multiple criteria decision-making method with heterogeneous linguistic expressions
(IEEE Transactions on Engineering Management, 2023)Due to the personalized and diversified expression habits, the evaluation information in multiple criteria decision-making (MCDM) problems, especially those with multiple experts, may appear in heterogeneous forms. Converting ... -
A new approach for multi-scenario project cash flow analysis based on todim and critical chain methods under grey uncertainty
(Economic computation and economic cybernetics studies and research, 2020)Prognosticating and monitoring the financial conditions of the projects in terms of the cash are crucial to be considered for companies. Generating reliable cash flow is essential for taking proper decisions and having ... -
A new approach for production project scheduling with time-cost-quality trade-off considering multi-mode resource-constraints under interval uncertainty
(International journal of production research, 2023)Due to today’s competitive environment and information boom, companies are concerned about production planning in uncertain conditions. This paper integrates decision-making method with production scheduling model by ... -
A new decision model with integrated approach for healthcare waste treatment technology selection with generalized orthopair fuzzy information
(Information sciences, 2022)A generalized orthopair fuzzy set can express uncertain information easier than most other processes, which gives us more space for decision-making. In recent times, the selection of healthcare waste treatment (HCWT) ... -
A new eigenvalue problem for the difference operator with nonlocal conditions
(Nonlinear analysis: modelling and control, 2019)In the paper, the spectrum structure of one-dimensional differential operator with nonlocal conditions and of the difference operator, corresponding to it, has been exhaustively investigated. It has been proved that the ... -
A new enhanced ARAS method for critical path selection of engineering projects with interval type-2 fuzzy sets
(International journal of information technology and decision making, 2021)Appraising the alternative among a set versus conflicting factors is taken into account as an essential issue in real-world decision problems. In this paper, a new multicriteria group decision-making (MCGDM) model is ... -
A new fuzzy approach based on BWM and fuzzy preference programming for hospital performance evaluation: A case study
(Applied soft computing, 2020)Hospital performance evaluation (HPE) has a major role in improving the quality, safety, and effectiveness of health care services, so it is indispensable for proper and continuous operation of hospitals. Although several ... -
A novel dynamic credit risk evaluation method using data envelopment analysis with common weights and combination of multi-attribute decision-making methods
(Computers and operations research, 2021)Credit risk evaluation is always the most important factor in determining Customers’ credit status in financial institutions. Multi-Attribute Decision-Making (MADM) methods have been widely used in this field. But most of ...