OOIR: Observatory of International Research

Papers

(The H4-Index of Annals of Operations Research is 49. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-09-01 to 2025-09-01.)

Article	Citations
Model-based vs. agnostic methods for the prediction of time-varying covariance matrices	191
Alternatives to classical option pricing	178
Calculating Nash equilibrium on quantum annealers	175
Joint balancing and sequencing optimization for type-II robotic mixed-model assembly line considering energy consumption	174
Environmental efficiency evaluation of China’s coal-fired electricity supply chain enterprises with large-scale datasets: an enhanced build hull algorithm	173
Uncertainty and fluctuation in crude oil price: evidence from machine learning models	161
An extrapolation trust-region alternating least-squares algorithm for triple decomposition of third-order tensors	158
Fresh agricultural products logistics network optimization incorporating departure time under the origin e-commerce model	150
Social optimum in public transport networks when users choose strategies: analysis and comparison with Wardrop equilibrium	144
A novel deep learning approach to enhance creditworthiness evaluation and ethical lending practices in the economy	140
A purely buffer-based approach to the proactive and reactive resource-constrained project scheduling problem	133
Vulnerability analysis of China’s air and high-speed rail composite express network under different node attack strategies	114
A fuzzy-digraph matrix-based risk mitigation framework for halal supply chain management	113
An application of artificial intelligence for solving multi-visit scheduling and routing of multi-heterogeneous resources	105
Tail dependence-based fuzzy clustering of financial time series	105
Exploring servitization in the supply chain: a review of current research via bibliometric analysis and future study prospects	105
A comprehensive evaluation of constrained mean-expectile portfolios with short selling	94
Approximations for generalized unsplittable flow on paths with application to power systems optimization	91
The impact of pollution on the dynamics of industry location and residence choice	87
Options as Silver Bullets: Valuation of Term Loans, Inventory Management, Emissions Trading and Insurance Risk Mitigation using Option Theory	86
Multifractal characteristics and return predictability in the Chinese stock markets	82
RETRACTED ARTICLE: Periapical dental X-ray image classification using deep neural networks	77
Exploring risk propagation in a multi-level supply chain network: a perspective of node perturbation	77
The connectedness and risk spillovers between bitcoin spot and futures markets: evidence from intraday data	72
Resilience analysis based on multi-layer network community detection of supply chain network	72

RETRACTED ARTICLE: Adoption of eco-friendly cars: mediated effects of attitude and moderation role of gender diversity across UAE market: application of extended version of theory of planned behaivour	71
The market reaction to operational risk events in the energy sector	69
The minmax due-date assignment problem with acceptable lead-times	68
Resilient retailer facility planning: optimizing location and service quality amidst competitors’ reactions	68
On $$\lambda $$-cent-dians and generalized-center for network design: formulations and algorithms	66
N-player and mean field games among fund managers considering excess logarithmic returns	65
Do stock markets care about ESG and sentiments? Impact of ESG and investors' sentiment on share price prediction using machine learning	65
Achieving economic sustainability: operations research for risk analysis and optimization problems in the blockchain era	63
Platform pricing and blockchain adoption for capacity sharing with cross-network externality and supply risk	63
A goal-oriented reinforcement learning for optimal drug dosage control	60
Causality of total resource management in circular supply chain implementation under uncertainty: a context of textile industry in Indonesia	59
National IoMT platform strategy portfolio decision model under the COVID-19 environment: based on the financial and non-financial value view	59
Computing the hull number in toll convexity	58
Corporate sustainability, investment, and capital structure	57
Intuitionistic fuzzy least square twin support vector machines for pattern classification	57
Enablers for digital supply chain transformation in the service industry	56
Green PLM: business goals-oriented algorithm assessing the greenness of a product in the new product development phase for the automotive industry	55
Green channel coordination under asymmetric information	55
Toward interpretable machine learning: evaluating models of heterogeneous predictions	54
Innovative supply chain network design with two-step authentication and environmentally-friendly blockchain technology	54
Confidence-interval-based fuzzy supplier selection model with lifetime performance index	53
Queueing analysis of a Car/Ride-Share system	52
Correction: Should we keep the tradition or follow the trend? The optimal live-streaming e-commerce mode selection in a sustainable and circular supply chain under competition	50
Extended formulation and Branch-and-Cut-and-Price algorithm for the two connected subgraph problem with disjunctive constraints	49
Exploration of applications with ChatGPT for green supply chain management	49
Scheduling problems on parallel machines with machine-dependent generalized due-dates	49