RAM KUMAR P.N

Significant Publications

Kunpeng Li, Tengbo Liu, P N Ram Kumar, and Xuefang Han (2024) "A reinforcement learning-based hyper-heuristic for AGV task assignment and route planning in parts-to-picker warehouses," Transportation Research Part E: Logistics and Transportation Review, Vol. 185, 103518  (ABDC/ABS - A*)

C. R. Vishnu, Sangeeth P. Das, R. Sridharan, M N Anish, and P N Ram Kumar (2024) “Reliable and Flexible Supplier Selection Problem: A Genetic Algorithm Inspired Simulation Approach”, International Journal of Logistics Systems & Management, Vol. 47(2), pp.185 – 209 (ABDC/ABS - C)

Rabin K Jana, Indranil Ghosh & P N Ram Kumar (2023) "An explainable AI-enabled granular ensemble machine learning framework to demystify fertilizer price movements," Accepted for publication in the Journal of the Operational Research Society. DOI: https://doi.org/10.1080/01605682.2023.2260908 (ABDC/ABS - A)

C.R Vishnu, E.N. Anilkumar, R. Sridharan & P N Ram Kumar (2023) "Statistical characterization of managerial risk factors: a case of state-run hospitals in India", OPSEARCH, Vol. 60, pp. 812 - 834 (ABDC/ABS - C)

Kunpeng Li, Peiyang He & P N Ram Kumar (2023) "A column generation based approach for an integrated production and transportation scheduling problem with dual delivery modes", International Journal of Production Research, Vol. 61(16), pp. 5483 - 5501 (ABDC/ABS - A)

Jie Li, Kunpeng Li, Qiannan Tian & P N Ram Kumar (2022) "An Improved Column Generation Algorithm for the Disrupted Flight Recovery Problem with Discrete Flight Duration Control and Aircraft Assignment Constraints", Computers and Industrial Engineering, Vol.174 (ABDC/ABS - A)

Alan J. Maniamkot, P N Ram Kumar, Mohan Krishnamoorthy, Hamid Mokhtar and Sridharan Rajagopalan (2022) "Hybridised ant colony optimization for convoy movement problem", Annals of Operations Research, Vol. 315, pp. 847 - 866. (ABDC/ABS - A)

Prashant Premkumar and P N Ram Kumar (2022) "Locomotive Assignment Problem - Integrating the Strategic, Tactical and Operational Level Aspects", Annals of Operations Research, Vol. 315, pp. 867 - 898. (ABDC/ABS - A)

E.N. Anilkumar, R. Sridharan, P N Ram Kumar (2022) "Prioritisation of barriers in implementing sustainable practices in public healthcare sector: an integrated DEMATEL, ISM and PROMETHEE model", International Journal of Services and Operations Management, Vol. 41 (4), pp. 486 – 513. (ABDC/ABS - C)

Pei Yang, Kunpeng Li and P N Ram Kumar (2022) “An enhanced branch-and-price algorithm for the integrated production and transportation scheduling problem”, International Journal of Production Research, Vol.60 (6), pp.1874 – 1889. (ABDC/ABS - A)

Wenli Li, Kunpeng Li, P N Ram Kumar and Qiannan Tian (2021) 'Simultaneous product and service delivery vehicle routing problem with time windows and order release dates', Applied Mathematical Modelling, Vol. 89, pp.669 - 687. (SCI indexed)

C. R. Vishnu, Sangeeth P. Das, R. Sridharan, P N Ram Kumar and N. S. Narahari (2021) “Development of a reliable and flexible supply chain network design model: a genetic algorithm based approach”, International Journal of Production Research, Vol.59 (20), pp. 6185 – 6209.(ABDC/ABS - A)

Wenli Li, Yong Wu, P N Ram Kumar & Kunpeng Li (2020), 'Multi-trip vehicle routing problem with order release time', Engineering Optimization, Vol. 52(8), pp.1279-1294. (ABDC/ABS - B)

Hamid Mokhtar, Mohan Krishnamoorthy, Niraj Ramesh Dayama, P.N. Ram Kumar (2020), 'New approaches for solving the convoy movement problem', Transportation Research Part E: Logistics and Transportation Review, Vol.133, pp. 101802 (ABDC/ABS - A*)

V.Anjana, R.Sridharan and P N Ram Kumar (2020), 'Metaheuristics for solving a multi-objective flow shop scheduling problem with sequence-dependent setup times', Journal of Scheduling, Vol. 23, pp.49-69.(ABDC/ABS - A)

C.R. Vishnu, R. Sridharan, Angappa Gunasekaran and P.N. Ram Kumar (2019), Strategic capabilities for managing risks in supply chains: current state and research futurities, Journal of Advances in Management Research, Vol. 17(2), pp. 173 - 211. (SCI indexed)

C.R.Vishnu, R. Sridharan, P.N.Ram Kumar (2019) 'Supply chain risk management: models and methods', International Journal of Management and Decision Making, Vol.18(1), 31 - 75. (ABDC/ABS - C)

Prashant Premkumar and P N Ram Kumar (2019), 'Literature Review of Locomotive Assignment Problem from service operations perspective: The Case of Indian Railways', IIM Kozhikode Society & Management Review, Vol. 8(1), pp. 74 - 86. (ABDC/ABS - B)

Anjana V, R. Sridharan, P.N. Ram Kumar (2019) 'Hybrid genetic algorithm for multi-objective flow shop scheduling problem with sequence dependent setup time: Parameter design using Taguchi's robust design method', International Journal of Process Management and Benchmarking, Vol.9(4), pp.419-446 (SCI INDEXED)

Anilkumar Elavanakattu Narayanan, Rajagopalan Sridharan, P.N. Ram Kumar (2019) 'Analyzing the interactions among barriers of sustainable supply chain management practices: A case study', Journal of Manufacturing Technology Management, Vol. 30 (6), pp.937 - 971. (ABDC/ABS - B)

C.R. Vishnu, R. Sridharan, P.N. Ram Kumar (2019) 'Supply chain risk inter-relationships and mitigation in Indian scenario: an ISM-AHP integrated approach', International Journal of Logistics Systems and Management, Vol. 32 (3-4), pp. 548 - 578. (ABDC/ABS - C)

John Sajan, R. Sridharan, P.N. Ram Kumar, M. Krishnamoorthy (2018) 'Multi-Period Reverse Logistics Network Design for Used Refrigerators', Applied Mathematical Modeling, Vol.54, 311 - 331. (SCI indexed)

John Sajan, R. Sridharan and P.N. Ram Kumar (2018) 'Reverse logistics network design: A case of mobile phones and digital cameras', International Journal of Advanced Manufacturing Technology, Vol. 94, pp:615 - 631. (SCI indexed)

Sajan John, R. Sridharan and P N Ram Kumar (2017) 'Multi-period reverse logistics network design with emission cost', International Journal of Logistics Management, Vol 28 (1), 127 - 149. (ABDC/ABS - A)

P.N. Ram Kumar, A.I. Sivakumar (2013) 'Simulated Annealing based algorithm for the Capacitated Hub Routing Problem', International Journal of Services and Operations Management, Vol 14(2), 221 - 235. (ABDC/ABS - C)

P.N. Ram Kumar and T.T. Narendran (2011) 'On the usage of Lagrangean Relaxation for the Convoy Movement Problem', Journal of the Operational Research Society, Vol 62, 722 -728. (ABDC/ABS - A)

P.N. Ram Kumar, P.K.Rai, A.I. Sivakumar, Peeyush Mehta and Ashok Mittal (2011) 'Impact of aggregating supplies from a single supplier to a cluster of producers: opportunities for 3PL service providers', International Journal of Operational Research, Vol 12(2), 192 - 206. (ABDC/ABS - C)

P.N. Ram Kumar, A.I. Sivakumar (2011) 'On solving the capacitated hub routing problem', International Journal of Logistics Systems and Management, Vol 8(4), 392 - 402. (ABDC/ABS - C)

P.N. Ram Kumar, T.T. Narendran, and A.I. Sivakumar (2009) 'Bi-criteria Convoy Movement Problem', Journal of Defense Modeling and Simulation, Vol 6 (3), 151 - 165. (SCI indexed)

P.N. Ram Kumar and T.T. Narendran (2009) 'Heuristics for Convoy Movement Problem', Strategic Analysis, Vol 33 (4), 590 - 606 (SCI indexed)

P.N. Ram Kumar and T.T. Narendran (2009) 'A mathematical approach for variable speed Convoy Movement Problem', Defense and Security Analysis, Vol 25 (2), 137 - 155. (SCI indexed)

P.N. Ram Kumar and T.T. Narendran (2008) 'Integer Programming Formulation for Convoy Movement Problem', International Journal of Intelligent Defence Support Systems, Vol 1 (3), 177 - 188. (SCI indexed)

Book Chapter: P.N. Ram Kumar and T.T. Narendran (2010) 'Convoy Movement Problem - An Optimization perspective', published in Innovations in Defense Support Systems - 1: Studies in Computational Intelligence, Vol. 304, 79-93, Springer Verlag, Germany.

On modeling the step fixed-charge transportation problem , Working Paper, 2013

Research Areas

Transportation network optimization, Military Logistics, Vehicle routing problems and Scheduling