Research
I specialize in developing exact and heuristic algorithms for large-scale optimization problems in transportation and logistics networks.
Interests
Network Design and Scheduling, Supply Chain Optimization, Data-driven Optimization, Integer Programming, Learning-based Decomposition Techniques for Large Scale Service Networks
Publications
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Ojha, R., Erera, A., Boland, N., Savelsbergh, M. Inventory-aware Long-term Equipment Planning for Service Networks IISE Annual Conference and Expo, 2021.
1st Place Award in IISE Logistics and Supply Chain (LSC) Division Best Student Paper Competition. -
Ojha, R., Ghadge, A., Tiwari, M. K., Bititci, U. Bayesian network modelling for supply chain risk propagation International Journal of Production Research (IJPR), 2018.
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Ghadge, A., Dani, S., Ojha, R., Caldwell, N. Using risk sharing contracts for supply chain risk mitigation: A buyer-supplier power and dependence perspective Computers & Industrial Engineering (CAIE), 2017.
Submitted Papers
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Ojha, R., Chen, W., Zhang, H., Khir, R., Erera, A., Van Hentenryck, P. (July 2023) Optimization-based Learning for Outbound Load Planning in Parcel Delivery Service Networks
Accepted for presentation in the 2nd Triennial TSL Conference, July 2023. -
Ojha, R., Erera, A. (Nov 2023) Cross-Dock Trailer Scheduling with Worker Constraints: A Dynamic Discretization Discovery Approach
Accepted for presentation in TSL Workshop, December 2021.
Working Papers
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Ojha, R., Erera, A., Van Hentenryck, P. Integrated Inbound-Outbound Load Planning in Trucking Service Networks
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Ojha, R., Marshall, L. Exact Algorithms for Large-scale Airline Schedule Design
Accepted for presentation in 9th Triennial ODYSSEUS Conference, May 2024. -
Ojha, R. An Iterative Exact Algorithm for Unrelated Parallel Machine Scheduling Problems with Release Times
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Ojha, R. Robust Equipment Planning for Holiday Season in Package Delivery Service Networks
Patents
- Van Hentenryck, P., Erera, A., Ojha, R., Chen, W., Khir, R., Optimization-based Learning for Dynamic Load Planning in Trucking Service Networks. Filed.