International Journal of Operational Research

2005 - 2026

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Volume 57, issue 2, 2026

Analysis of AS/RS performance for different storage location policies pp. 135-153

L. Aravindh Kumaran and A. Pradeep Arul Pragash

Safety stock optimisation with guaranteed service approach under different supply chain topologies pp. 154-181

Joaquim Jorge Vicente

Hybrid algorithm: estimation of distribution algorithm and local search method for the 0-1 quadratic knapsack problem pp. 182-197

Amina Arousse, Bassem Jarboui and Mohamed Cheikh

Two and three rates of production inventory models for deteriorating items with price-advertisement dependent demand pp. 198-230

C.K. Sivashankari and V. Choudri

An innovative partial backlog supply model that incorporates time-sensitive degradation, influenced by the time-linear cost of holding, and selling price-dependent split demand pp. 231-252

T. Vanjikkodi and V. Pankajam

Sustainable freight transportation: a bi-objective multi-choice goal programming framework pp. 253-271

Nitin Sahu and Garima Mittal

Volume 57, issue 1, 2026

Solving a flexible job-shop scheduling problem considering changes in resources capacity pp. 1-29

Sandra Sousa and Rui Borges Lopes

An improved chemical reaction optimisation for the dynamic CVRP with two-dimensional loading constraints pp. 30-53

Nadia Dahmani, Ines Sbai, Takwa Tlili and Saoussen Krichen

A fuzzy medication inventory model with Weibull deterioration and shortages for any epidemic or medical emergency pp. 54-67

Swadhin Banerjee and Tripti Chakrabarti

Economic analysis of MAP/PH/1 queueing model with degrading service rates, multiple vacations, and reactive maintenance based on feedback pp. 68-91

Nitin Mahla, Alka Choudhary and Dinesh C. Sharma

Continuous review inventory model under partial permissible delay in payment policy and capacity constraint pp. 92-104

Mohammad A. Darwish

Metaheuristic approaches for quadratic assignment problem: recent advancements and potential path pp. 105-134

Syariza Abdul-Rahman, Nurdiyana Jamil, Aida Mauziah Benjamin, Sharifah Shuthairah Syed-Abdullah, Ku Ruhana Ku-Mahamud and Mohamed Saifullah Hussin

Volume 56, issue 4, 2026

A sustainable deteriorating inventory model under controllable carbon emission with green investment strategy and quality reliant demand pp. 381-423

Sandeep Kumar, Sanjai Sharma, Anirudh Bhargava and Dharmendra Yadav

Performance analysis of M / M /1/ N queue with balking and reneging using statistical mechanics pp. 424-439

Krishan, Neetu Gupta and Amita Bhagat

Exploring metaheuristic strategies and risk mitigation techniques for diversified portfolio management pp. 440-469

Jhuma Ray and Soma Panja

Naive strategy for population variance estimation utilising known auxiliary parameters pp. 470-486

Subhash Kumar Yadav, Dinesh K. Sharma and Taruna Taruna

A multi-objective optimisation of airport gate assignments integrating economic, environmental, and social sustainability pp. 487-511

Jeremy Gabriel Uy, Jarvy Larz San Juan, Mateo Urera, Edrik Aaron Chan, Ezra Emmanuel Cruz, Nathaniel Harvey Tang, Richard Li, Jayne Lois San Juan and Charlle Sy

Volume 56, issue 3, 2026

Multiple drone and truck combined operations pp. 269-289

Bhawesh Sah, Mohammad Moshref-Javadi and Sung Hoon Chung

A dual-channel supply chain considering different preferences of delivery cost bearing in presence of a third-party platform pp. 290-313

Soumita Kundu

Price dependent demand and inflation deteriorating inventory model with shortages pp. 314-326

Nilesh Kumar, Quazzafi Rabbani and Nurul Azeez Khan

Optimising reliability, performance, and efficiency of sequential system through copula approach pp. 327-350

Ramatu Idris Gatawa, Mansur Hassan and Ibrahim Yusuf

Sperm flagellum motility algorithm: a novel metaheuristic optimiser for solving optimisation problems pp. 351-380

Imad El Karkri and Abdelghni Lakehal

Volume 56, issue 2, 2026

Optimising fresh produce demand with expiration date and carbon mitigation strategies under learning effect and nonlinear holding cost: a quadratic modelling approach of time-price-freshness for profit maximisation pp. 131-156

Vrushali A. Surve and Monika K. Naik

Exploring reliability factors in a sequential solar system: a copula-based investigation of dependability substances pp. 157-171

Abdulhadi Aminu, Abdulkareem Lado Ismail and Ibrahim Yusuf

Inventory decisions for deteriorating and ameliorating items with partial backlogging and time varying demand pp. 172-186

V.P. Praveen and Mavila Manoharan

An optimisation method for ranking college football teams pp. 187-208

Mohsen Hamidi and Mehdi Seifbarghy

Robust neutrosophic modelling and optimisation approach for solving multi-objective multi-product production planning problem pp. 209-236

G. Tamilarasi

Distinctive representations of icosagonal fuzzy numbers along with novel defuzzification techniques for solving fuzzy assignment problems pp. 237-268

Jaya Bhadauria, Suneel Kumar, Deepak Kumar and Anita Kumari

Volume 56, issue 1, 2026

Optimising meal delivery through travelling salesman problem and cluster analysis pp. 1-15

Erkan Köse, Danışment Vural, Merve Yılmaz, Gizem İnci and Pınar Nur Oral

Bi-objective multiple drones and trucks combined operation parcel delivery pp. 16-40

Bhawesh Sah, Shalabh Singh, Rohit Titiyal and Sonia Singh

An inventory models for product life cycle for deteriorating items with growth of demand - a comparative statement pp. 41-65

C.K. Sivashankari

A location analysis and modelling approach for optimising public access to an automated external defibrillator network pp. 66-87

Trevor Angel, Lihui Bai and William Paul McKinney

Government subsidies for downstream innovation with cost-sharing under different power structures pp. 88-130

Chengli Wei, Hongzhuan Chen and Yuanfei Kang

Volume 55, issue 4, 2026

A numerical approach for fuzzy quadratic programming problems with an application to dairy farming pp. 429-461

Sumati Mahajan and S.K. Gupta

A new optimisation model of the visitor routing problem applied to smart tourism pp. 462-481

Safae Rbihou, Nour-Eddine Joudar and Khalid Haddouch

Analysis of the performance of SDN cloud controllers using non-Markovian queueing models pp. 482-494

Najeeb Al-Matar

Application of mixed-integer linear programming problems to optimise timetables and classroom arrangements pp. 495-514

Dinh Son Nguyen, Dinh Nhiem Le and Cong Hanh Nguyen

An optimal policy on a two-warehouse model for deteriorating inventory items with varying time-dependent generalised demand and the conditions of delay in payments pp. 515-542

Itishree Rout, Trailokyanath Singh and Ameeya Kumar Nayak

Approximate solutions of ordinary differential equations modelling queue length dynamics pp. 543-556

Zeina Mueen

A framework for nurse scheduling problems based on prevention of bad-relationships pp. 557-574

Mehboob Ali Kanhio, Zain-Ul-Abdin Khuhro, Farhat Naureen Memon and Muhammad Saleem Chandio

Volume 55, issue 3, 2026

The effect of preservation technology investment on inventory model with quadratic demand rate and time dependent holding cost under two-level trade-credit policy pp. 277-306

Manoj Kumar Sharma, Mukesh Kumar, Satya Jeet Singh and Divya Mandal

Dividend decision-making algorithm among multi-firms of available and required capacity within constrained horizontal coalitions pp. 307-329

Prem Prakash Mishra and Chipem Zimik

An improved Bombus-Terrestris bee optimisation algorithm implementation for enhancement of PQ in smart grid environment with hybrid renewable energy sources pp. 330-361

S. Mani Kuchibhatla, D. Padmavathi and R. Srinivasa Rao

A Markov model for prediction of academic manpower system in Nigerian colleges of education pp. 362-379

Shamsuddeen Ahmad Sabo, Nitesh Kumar Adichwal, Ibrahim Zakariyya Musa, Yakubu Isyaku Kibiya, Badamasi Abba, Syed Aqib Jalil and Akhil Damodaran

Scenario reliability assessment for CVaR minimisation in two-stage stochastic programs pp. 380-398

Ghazal Shah Abadi and Sarah M. Ryan

Enhancing project selection: elicitation of parameter values for effective multiple criteria project sorting pp. 399-428

Efrain Solares, Eduardo Fernández, Abril Flores, Reimundo Moreno-Cepeda, Raymundo Díaz and Edy López Cervantes

Volume 55, issue 2, 2026

Selection of suppliers for supplier development: an integrated FD-FIS approach pp. 129-156

Manojkumar V. Dalvi, Vishal A. Bhosale and Anjali S. More

A nonlinear mathematical model for optimal discount pricing strategies to maximise the stakeholders-perceived value: mapping in Taguchi loss function concept pp. 157-174

Bakhtiar Ostadi, Ali Abdollahi and Ali Husseinzadeh Kashan

A first augmented Lagrangian method for binary QCQP problems based on a class of continuous functions pp. 175-196

Nirakar Sahoo and Rupaj Kumar Nayak

Performance analysis and optimisation of secondary queue: a study of railway passenger reservation system pp. 197-220

S.M. Qasim and Jamal A. Farooquie

Inventory model for non-instantaneous deteriorating items with hybrid price and stock dependent demand in the view of delay in payments, inflation and customer returns pp. 221-246

Jayasankari Chandramohan and Uthayakumar Ramasamy

Improved managerial decisions for fuzzy stochastic bi-objective linear programming models: a trade-off ratio-based autonomised approach pp. 247-275

Arindam Garai, Santanu Saha and Kajal De

Volume 55, issue 1, 2026

Non-convex queue time-bound optimal load balancing pp. 1-14

Najeeb Al-Matar

Analysis of batch arrival general service queue with feedback, balking, general delay time and second optional service pp. 15-39

P. Vijaya Laxmi, Hasan Abdulkader Qrewi and Andwilile Abrahamu George

The Harris-odd Burr type X-G family of distributions with applications pp. 40-67

Broderick Oluyede, Neo Dingalo and Fastel Chipepa

Queueing models of machine repair problems with control policies: a survey and analysis pp. 68-127

Parmeet Kaur Chahal and Kamlesh Kumar