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Croatian Operational Research Review
Scopus
ISSN 1848-0225 · Croatian Operational Research Society · 429 artikel di indeks
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Artikel Jurnal
A discrete-time infinite-server batch arrival queue with application to serverless computing
Serverless computing systems behave like an infinite server queue, dynamically expanding the number of instances to handle incoming batch tasks. In serverless computing, to leverage its scalability, efficiency, and cost-effectiveness, it is essential to apply an infinite server queue with batch…
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Mitigating the consequences of disruptions by locating temporary facilities and balancing the redistribution of users
Many service systems are subject to disruptions that can reduce their operational capacity, forcing users to find alternative ways to meet their service needs. One way to mitigate such effects is to locate temporary facilities where users can receive services. Also, users can be served in…
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Study of novel normalization technique on weighting and ranking methodology in multi criteria decision making: Several cases in financial performance
The evaluation of corporate financial performance typically entails the use of multiple financial ratios characterized by heterogeneous properties, including the potential presence of negative values. Within this context, Multi-Criteria Decision-Making (MCDM) approaches have been extensively…
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Environmental fiscal policy and greenhouse gas emissions in the EU-27: Evidence from a dynamic panel GMM model
This paper examines the effects of environmental fiscal policy variables on greenhouse gas (GHG) emissions in the EU-27 from 2009 to 2023. The Arellano and Bond difference GMM estimator is used to address potential endogeneity and persistence of GHG emissions. The panel model is estimated using the…
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Comparative analysis of modern machine learning models for retail sales forecasting
Accurate demand forecasting is critical for brick-and-mortar retailers to optimize inventory management and minimize costs. This study evaluates statistical baselines, tree-based ensembles (XGBoost and LightGBM), and deep learning architectures (N-BEATS, N-HiTS, and the Temporal Fusion Transformer)…
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Country-specific financial distress prediction using decision trees: Empirical evidence from Slovakia and Croatia
This paper develops and compares financial distress (FD) prediction models for Slovak and Croatian firms based on a decision tree (DT) approach. The study aims to identify the crucial financial variables that predict firm FD in these two post-transition economies that share historical and…
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Linking dynamic managerial capabilities and organizational agility: The role of technological innovation
In an era of rapid technological change and increasing environmental uncertainty, organizational agility has become a key driver of firm competitiveness, underscoring the importance of understanding how dynamic managerial capabilities enable agile organizational responses. The current study…
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Multimethod survival analysis for identifying predictors and forecasting mortality in a heart patient cohort study
This study presents a multi-method survival analysis of 125 cardiac patients from IIMCT-Pakistan Railway Hospital in Rawalpindi, Pakistan. Parametric accelerated failure-time modeling identified the Weibull distribution as optimal for describing time-to-event data. Semi-parametric analyses…
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Benchmarking Croatian airports: A data-driven approach through DEA window analysis
This study benchmarks the efficiency of seven certified international airports in Croatia using Data Envelopment Analysis (DEA) with a window framework under variable returns to scale, explicitly addressing the challenge of a small number of decision-making units through dynamic window…
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Optimizing an imperfect production system with varying production cost under selling price and advertising-driven demand
This study develops a production inventory model that accounts for imperfect production processes, acknowledging that a certain percentage of items produced are defective, reason being labor inefficiencies and machinery malfunctions. These defective items are identified and are segregated during…
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Data inversion in MCDM problems: nonlinear 1/a and linear ReS inversion
A comprehensive analysis of the procedures for consistent normalization/inversion of benefit and cost attributes for multi-criteria decision making (MCDM) and multivariate classification problems is performed. This study demonstrates that the commonly used 1/a transformation for cost attribute…
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Artikel Jurnal
Optimization of the traveling salesman problem through a genetic algorithm guided by self-organizing maps
Optimization is a fundamental process for achieving objectives, exemplified by the Traveling Salesman Problem (TSP), which minimizes resource consumption. This study focuses on optimizing travel routes to reduce fuel costs and maximize tourist visits through efficient time management. We employ a…
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A hybrid approach to approximate the Pareto front of the MOST problem
This study introduces a hybrid NSGA-II algorithm with Multi-VNS for approximating the Pareto front of the multi-objective spanning tree (MOST) problem, building on recent approaches that have adapted NSGA-II combined with local search heuristics. By exploiting the property that a spanning tree is…
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Multidecision criteria models for Logistics Performance Index in the EU countries
Key factors influencing multicriteria logistics performance in the European Union (EU) include the weighting of evaluation criteria, infrastructure efficiency, logistics quality, and environmental impact. The Logistics Performance Index (LPI), which evaluates logistics systems across six…
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Risk-based decision-making: extended F-Entropy method with correction factor based 2D-FAHP method
In complex decision-making processes using multi-criteria decision-making methods, experts' beliefs and judgments, as well as their knowledge, are influential in the comparisons between criteria and alternatives, which may lead to overlapping importance rankings of criteria. In this study, to…
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Determinants of real estate prices in Croatian counties: spatial panel data analysis
This paper examines the determinants of real estate prices across Croatian counties, taking into account not only economic and demographic factors, but also tourism-related variables. The main focus is on spatial spillover effects, which are based on the assumption that real estate prices in one…
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Management ownership and earnings management: application of matching techniques
This paper investigates the effect of managerial ownership on earnings management for the sample of European listed companies. To estimate the treatment effect of a manager who is also a controlling shareholder on earnings management, entropy balancing (EB), propensity score matching (PSM) and…
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Artikel Jurnal
On the identification of a distribution for the arrivals to a queueing system: an application from bank data
Queues are an integral part of life. The literature available concentrates on Poisson arrival and exponential service time. The present paper focuses on statistical inference on the parameters of queueing models. The work is data driven. The dataset considered is the queueing system in banks which…
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Solution to the single parametric linear programming problems via simplex-based algorithms: handling the uncertainties in costs, left or right-hand sides
Parametric programming is one of the notable approaches to expressing the uncertainties encountered in real life. Many studies express the parameters of the objective function and right-hand side parametrically, but only a few include the parametric coefficient matrix of the constraints. This paper…
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Customer impatience in the GI/M(k)/1/N queue with working vacation: Economic and performance analysis
This study investigates a GI/M(k)/1/N queueing system with Bernoulli feedback and multiple working vacation policy. The model incorporates customer impatience and accounts for the retention of reneged customers. By employing the supplementary variable technique and recursive methods, we derive the…