Samitha Samaranayake

Associate Professor
School of Civil and Environmental Engineering

Graduate Field Faculty
Operations Research and Information Eng.
Center for Applied Math
Systems Engineering

Faculty Fellow
Atkinson Center for a Sustainable Future

317 Hollister Hall
Ithaca, NY 14853

samitha@cornell.edu
607-255-3438

For a list of all publications by year, see my Google Scholar page.

Journal publications

  1. Permutatorial Optimization via the Permutahedron, J. Mori, S. Samaranayake, Operations Research Letters, 2022.
  2. Modeling COVID-19 Spread in a Vaccinated Urban University Population, M. Junge, S. Li, S. Samaranayake, M. Zalesak, PLoS One, 2022.
  3. Shareability network based decomposition approach for solving large-scale single school routing problems, X. Guo, S. Samaranayake, Transportation Research Part C, 2022.
  4. Optimization of Vaccination for COVID-19 in the midst of Pandemic, Q. Luo, R. Weightman, S. T. McQuade, M. Diaz, E. Trelat, W. Barbour, D. Work, S. Samaranayake, B. Piccoli, Networks and Hetrogenous Media, 2022.
  5. Managing Public Transit during a Pandemic: The Trade-Off between Safety and Mobility, Q. Luo, M. Gee, B. Piccoli, D. Work, S. Samaranayake, Transportation Research Part C, 2022.
  6. Computing constrained shortest-paths at scale, A. Vera, S. Banerjee, S. Samaranayake, Operations Research, 2021.
  7. Real Time Operation of High-Capacity Electric Vehicle Ridesharing Fleets, M. Zalesak, S. Samaranayake, Transportation Research Part C, 2021.
  8. Real-time approximate routing for smart transit systems, N. Perivier, C. Hssaine, S. Samaranayake, S. Banerjee, Proceedings of the ACM on Measurement and Analysis of Computing Systems, 2021.
  9. Proactive rebalancing and speed-up techniques for on-demand high capacity vehicle pooling, Y. Liu, S. Samaranayake, IEEE Transactions on Intelligent Transportation Systems, 2020.
  10. Urbano: A Tool to Promote Active Mobility Modeling and Amenity Analysis in Urban Design, T. Dogan, Y. Yang, S. Samaranayake, N. Saraf, Technology|Architecture + Design, 2020.
  11. Impact of discerning reliability preferences of riders on the demand for mobility-on-demand services, P. Bansal, Y. Liu, R. Daziano, S. Samaranayake, Transportation Letters, 2020.
  12. Bounded Asymmetry in Road Networks, J.Mori, S. Samaranayake, Scientific Reports, 2019.
  13. Stochastic on-time arrival problem in transit networks, Y. Liu, S. Samaranayake, Transportation Research Part B, 2018.
  14. A framework to integrate mode choice in the design of mobility-on-demand systems, Y. Liu, P. Bansal, R. Daziano, S. Samaranayake, Transportation Research Part C, 2018.
  15. The Price of Fragmentation in Mobility-on-Demand Services, T. Sejourne, S. Samaranayake, S. Banerjee, Proceedings of the ACM on Measurement and Analysis of Computing Systems (POMACS), 2018.
  16. Discrete-time system optimal dynamic traffic assignment (SO-DTA) with partial control for horizontal queuing networks, S. Samaranayake, J. Reilly, W. Krichene, M.L. Delle Monache, P. Goatin, A. Bayen, Transportation Science, 2018.
  17. On-demand high-capacity ride-sharing via dynamic trip-vehicle assignment, J. Alonso-Mora, S. Samaranayake, A. Wallar, E. Frazzoli, D. Rus, Proceedings of the National Academy of Sciences (PNAS), 2017.
  18. A mathematical framework for delay analysis in single source networks, S. Samaranayake, A. Parmentier, E. Xuan, A. Bayen, Networks and Heterogeneous Media, 2017.
  19. Shared-vehicle mobility-on-demand systems: a fleet operator’s guide to rebalancing empty vehicles, K. Spieser, S. Samaranayake, W. Geuel, E. Frazzoli, Transportation Research Record, 2016.
  20. Adjoint-based optimization on a network of discretized scalar conservation law PDEs with applications to coordinated ramp metering, J. Reilly, S.Samaranayake, M.L. Delle Monache, W. Krichene, P. Goatin, A. Bayen, Journal of Optimization Theory and Applications, 2015.
  21. Real-time emissions estimation and dispersion modeling along the transportation network, S. Samaranayake, J. Monteil, D. Holstius, K. Tracton, E. Seto, S. Glaser, A. Bayen, Computer-Aided Civil and Infrastructure Engineering, August 2014.
  22. A PDE-ODE model for a junction with ramp buffer, M.L. Delle Monache, J. Reilly, S. Samaranayake, W. Krichene, P. Goatin, A. Bayen, SIAM Journal on Applied Mathematics, 2014.
  23. A Tractable Class of Algorithms for Reliable Routing in Stochastic Networks, S. Samaranayake, S. Blandin, A. Bayen, Transportation Research Part C: Emerging Technologies, February 2012.
  24. Dynamic Scan: driving down the cost of test, S. Samaranayake, N. Sitchinava, R. Kapur, M. Amin, T.W. Williams, IEEE Computer, 2002.

Conference publications

  1. Approximation Algorithms for Capacitated Assignment with Budget Constraints and Applications in Transportation Systems, H. Jiang, S. Samaranayake, 28th International Computing and Combinatorics Conference (COCOON) 2022, October 22-24 Shenzhen, China.
  2. Offline Vehicle Routing Problem with Online Bookings: A Novel Problem Formulation with Applications to Paratransit, A. Sivagnanam, S. U. Kadir, A. Mukhopadhyay, P. Pugliese, A. Dubey, S. Samaranayake, A. Laszka, 31st International Joint Conference on Artificial Intelligence (IJCAI), 2022, July 23-29, Vienna, Austria.
  3. On the Request-Trip-Vehicle Assignment Problem, J. Mori, S. Samaranayake SIAM Conference on Applied and Computational Discrete Algorithms, 2021, July 19-21, Virtual.
  4. An Online Approach to Solve the Dynamic Vehicle Routing Problem with Stochastic Trip Requests for Paratransit Services, M. Wilbur, S. U. Kadir, Y. Kim1, G. Pettet, A. Mukhopadhyay, P. Pugliese, S. Samaranayake, A. Laszka, A. Dubey, 2022 ACM/IEEE 12th International Conference on Cyber-Physical Systems, June 4-6, Milan, Italy.
  5. Real-time approximate routing for smart transit systems, N. Perivier, C. Hssaine, S. Samaranayake, S. Banerjee, ACM SIGMETRICS 2021, June 14-18, Virtual.
  6. Multimodal Mobility Systems: Joint Optimization of Transit Network Design and Pricing, Q. Luo, S. Samaranayake, S. Banerjee, 2021 ACM/IEEE 12th International Conference on Cyber-Physical Systems, May 19-21, Nashville, Tennessee.
  7. An Adaptive Workflow to Generate Street Network and Amenity Allocation for Walkable Neighborhood Design, Y. Yang, S. Samaranayake, T. Dogan, 2020 Proceedings of the Symposium on Simulation for Architecture and Urban Design (SimAUD).
  8. Using Open Data to Derive Local Amenity Demand Patterns for Walkability Simulations and Amenity Utilization Analysis, Y. Yang, S. Samaranayake, T. Dogan, 2019 eCAADe 37SIGraDi.
  9. Solving the School Bus Routing Problem at Scale via a Compressed Shareability Network, X. Guo, Y. Liu, S. Samaranayake, 2018 IEEE International Conference on Intelligent Transportation Systems, November 4-7, Maui, Hawaii.
  10. Urbano: A new tool to promote mobility-aware urban design, active transportation modeling and access analysis for amenities and public transport, T. Dogan, S. Samaranayake, N. Saraf, 9th Annual Symposium on Simulation for Architecture and Urban Design (SimAUD), June 4-7, Delft, Netherlands.
  11. The Price of Fragmentation in Mobility-on-Demand Services, T. Sejourne, S. Samaranayake, S. Banerjee, ACM SIGMETRICS, June 18-2, Irvine, California.
  12. Ridepooling with Trip-Chaining in a Shared-Vehicle Mobility-on-Demand System, S. Samaranayake, K. Spieser, H. Guntha, E. Frazzoli, Proceedings of the IEEE Conference on Intelligent Transportation Systems, October 17-19, Yokohama, Japan.
  13. Integrating Shared-Vehicle Mobility-on-Demand Systems with Public Transit, A. Vakahil, W. Gruel, S. Samaranayake, Transportation Research Board 96th Annual Meeting, 2017 Washington, D.C.
  14. Back-pressure traffic signal control with partial routing control, J. Gregoire, S. Samaranayake, E. Frazzoli, Proceedings of the 55th IEEE Conference on Decision and Control 2016, December 12-14, Las Vegas, Nevada.
  15. Tractable Pathfinding for the Stochastic On-Time Arrival Problem, M.Niknami, S. Samaranayake, Proceedings of the 15th International Symposium on Experimental Algorithms (SEA) 2016, June 5-8, St. Petersburg, Russia.
  16. Vehicle routing for shared-mobility systems with time-varying demand, K. Spieser, S. Samaranayake, E. Frazzoli, Proceedings of the 2016 American Control Conference, July 6-8, Boston, MA.
  17. Shared-vehicle mobility-on-demand systems: a fleet operator’s guide to rebalancing empty vehicles, K. Spieser, S. Samaranayake, W. Gruel, E. Frazzoli, Transportation Research Board 95th Annual Meeting, 2016 Washington, D.C.
  18. Solving the user equilibrium departure time problem at an off-ramp with incentive compatible cost functions, S. Samaranayake, A. Parmentier, E. Xuan, A. Bayen, Proceedings of the 2015 European Control Conference, July 15-17, Linz, Austria.
  19. Discrete-time system optimal dynamic traffic assignment (SO-DTA) with partial control for horizontal queuing networks, S. Samaranayake, J. Reilly, W. Krichene, M.L. Delle Monache, P. Goatin, A. Bayen, Proceedings of the 2015 American Control Conference, July 1-3, Chicago, IL.
  20. A mathematical framework for delay analysis in single source networks, A. Parmentier, S. Samaranayake, E. Xuan, A. Bayen, Proceedings of the 2015 American Control Conference, July 1-3, Chicago, IL.
  21. Solving the dynamic user equilibrium problem via sequential convex optimization for parallel horizontal queuing networks, J.B. Lespiau, S. Samaranayake, A. Bayen, Transportation Research Board 94th Annual Meeting, 2015 Washington, D.C.
  22. GPU parallalization of the stochastic on-time arrival problem, M. Abeydeera, S. Samaranayake, Proceedings of the 21st IEEE Conference on High Performance Computing (HiPC) 2014, Goa, India
  23. Pre-processing algorithms for the stochastic on-time arrival problem, G. Sabran, S. Samaranayake, A. Bayen, Proceedings of the 16th SIAM Workshop on Algorithm Engineering and Experiments (ALENEX)}, pp 138-146, January 5, 2014, Portland, Oregon.
  24. Speedup Techniques for the Stochastic on-time Arrival Problem, S. Samaranayake, S. Blandin, A. Bayen, Proceedings of the 12th Workshop on Algorithmic Approaches for Transportation Modeling, Optimization, and Systems, September 13, 2012, Ljubijana, Slovenia.
  25. An adaptive routing system for location-aware mobile devices on the road network, P. Borokhov, S. Blandin, S. Samaranayake, O. Goldschimdt, A. Bayen, Proceedings of the 14th International IEEE Conference on Intelligent Transportation Systems (ITSC)}, October 5-7 2011, Washington, DC.
  26. Learning Traffic Flow Dependencies in Highway Networks, S. Samaranayake, S. Blandin, A. Bayen, Proceedings of the 50th IEEE Conference on Decision and Control, December 12-15 2011, Orlando, Florida.
  27. A Tractable Class of Algorithms for Reliable Routing in Stochastic Networks, S. Samaranayake, S. Blandin, A. Bayen, Proceedings of the 19th International Symposium on Transportation and Traffic Theory (ISTTT), July 18-20 2011, Berkeley, California.
  28. A Reconfigurable Shared Scan-In Architecture, S. Samaranayake, E. Gizdarski, N. Sitchinava, F. Neuveux, R. Kapur, T.W. Williams, Proceedings of the 21st IEEE VLSI Test Symposium (VTS)}, Pages 9-14, 2003.
  29. Changing scan enable during shift, N. Sitchinava, S. Samaranayake, R. Kapur, E. Gizdarski, F. Neuveux, T.W. Williams, Proceedings of the 22nd IEEE VLSI Test Symposium (VTS)}, Pages 73-78, 2004.