Publications

Patents

  1. Apparatus and Method for Predicting Air Traffic Controller Workload,
    Chaudhuri, T., Zhang, S., Zhang, Y., Nagavarapu, S.C. and Jaya, S.
    (patent filed, pending grant).
    Objective: Proposes a data-driven approach for real-time prediction of air traffic controller workload (ATCO Workload).

Journals

  1. Multi-Robot Graph Exploration and Map Building with Collision Avoidance: A Decentralized Approach  [doi],
    Nagavarapu, S.C., Vachhani, L. and Sinha, A.
    Journal of Intelligent & Robotic Systems, vol. 83, no. 3, pp. 503-523, 2016.

  2. Generalizing Multi-Agent Graph Exploration Techniques  [doi]  [read-only pdf],
    Nagavarapu, S.C., Vachhani, L., Sinha, A. and Buruily, S.
    International Journal of Control, Automation, and Systems, vol. 19, no. 1, pp. 491-504, 2021.

  3. CubeSats for Space Debris Removal from LEO: Prototype Design of a Robotic Arm-based Deorbiter CubeSat  [doi],
    Nagavarapu, S.C., Mogan, L.B., Chandran, A., and Hastings, D.E.
    Advances in Space Research, vol. 75, no. 9, pp. 6896-6910, 2025.

  4. A Generic GPU-Accelerated Framework for the Dial-A-Ride Problem  [doi],
    Pandi, R.R., Ho, S.G., Nagavarapu, S.C. and Dauwels, J.
    IEEE Transactions on Intelligent Transportation Systems, vol. 22, no. 10, pp. 6473-6488, 2021.

  5. Disruption Management for Dial-A-Ride Systems  [doi],
    Pandi, R.R., Ho, S.G., Nagavarapu, S.C., Tripathy, T. and Dauwels, J.
    IEEE Intelligent Transportation Systems Magazine, vol. 12, no. 4, pp. 219-234, 2020.

  6. An Improved Tabu Search Heuristic for Static Dial-A-Ride Problem  [arXiv preprint],
    Ho, S.G., Nagavarapu, S.C., Pandi, R.R., Azizian, K. and Dauwels, J.
    (arXiv preprint available).

Book Chapters

  1. Enhancing Autonomous Vehicle Navigation Through Computer Vision: Techniques for Lane Marker Detection and Rain Removal  [doi],
    Nagavarapu, S.C., Abraham, A., Li, S. and Dauwels, J.
    Internet of Vehicles and Computer Vision Solutions for Smart City Transformations. Lecture Notes in Intelligent Transportation and Infrastructure (LNITI). Springer, Cham, pp. 167–191, 2025.

  2. Solving Dial-A-Ride Problems using Multiple Ant Colony System with Fleet Size Minimisation  [doi],
    Tripathy, T., Nagavarapu, S.C., Azizian, K., Pandi, R.R. and Dauwels, J.
    Advances in Computational Intelligence Systems (ACIS), pp. 325-336, vol. 650, 2018.

  3. Transforming Public Safety and QoL in Smart Cities: Automated Event Detection and Response Generation with AI and IoT  [doi],
    Pargi, M.K., Abraham, A. and Nagavarapu, S.C.
    Internet of Vehicles and Computer Vision Solutions for Smart City Transformations. Lecture Notes in Intelligent Transportation and Infrastructure (LNITI). Springer, Cham, pp. 267–290, 2025.

Conference Proceedings

  1. A Decentralized Approach for Autonomous Multi-Robot Exploration and Map Building for Tree Structures  [doi],
    Nagavarapu, S.C., Vachhani, L. and Sinha, A.
    Proceedings of the Indian Control Conference (ICC), Chennai, India, pp. 274-279, 2015.

  2. Development of a Simulation Platform to Implement Vehicle Routing Algorithms for Large Scale Fleet Management Systems  [doi],
    Nagavarapu, S.C., Tripathy, T. and Dauwels, J.
    Proceedings of the 20th IEEE International Conference on Intelligent Transportation Systems (ITSC): Workshop, Yokohama, Japan, pp. 124-129, 2017.

  3. Improved Tabu Search Heuristic for Static Dial-a-ride Problem: Faster and Better Convergence  [doi],
    Ho, S.G., Nagavarapu, S.C., Pandi, R.R. and Dauwels, J.
    Presented at the 25th Intelligent Transportation Systems World Congress (ITS-WC), Copenhagen, Denmark, 2018.

  4. Multi-atomic Annealing Heuristic for the Dial-a-ride Problem  [doi],
    Ho, S.G., Pandi, R.R., Nagavarapu, S.C. and Dauwels, J.
    Proceedings of the 14th IEEE International Conference on Service Operations and Logistics, and Informatics (SOLI), Singapore, pp. 272-277, 2018.

  5. GPU-Accelerated Tabu Search Algorithm for Dial-A-Ride Problem  [doi],
    Pandi, R.R., Ho, S.G., Nagavarapu, S.C., Tripathy, T. and Dauwels, J.
    Proceedings of the 21st IEEE International Conference on Intelligent Transportation Systems (ITSC), Hawaii, USA, pp. 2519-2524, 2018.

  6. Solving Time-Dependent Dial-A-Ride Problem using Greedy Ant Colony Optimization  [doi],
    Ho, S.G., Koh, H.W., Pandi, R.R., Nagavarapu, S.C. and Dauwels, J.
    Proceedings of the 21st IEEE International Conference on Intelligent Transportation Systems (ITSC), Hawaii, USA, pp. 778-785, 2018.

  7. Deterministic Annealing for Depot Optimization: Applications to the Dial-A-Ride Problem  [doi],
    Pandi, R.R., Ho, S.G., Nagavarapu, S.C. and Dauwels, J.
    Proceedings of the 9th IEEE Symposium Series on Computational Intelligence (SSCI), Bangalore, India, pp. 88-95, 2018.

  8. Adaptive Algorithm for Dial-A-Ride Problem with Vehicle Breakdown  [doi],
    Pandi, R.R., Ho, S.G., Nagavarapu, S.C. and Dauwels, J.
    Proceedings of the 18th European Control Conference (ECC), Naples, Italy, pp. 2682-2688, 2019.

  9. Data-driven Models for Short-term Travel Time Prediction  [doi],
    Narayanan, A.K., Pranesh, C., Nagavarapu, S.C., Kumar, B.A. and Dauwels, J.
    Proceedings of the 22nd IEEE International Conference on Intelligent Transportation Systems (ITSC), Auckland, New Zealand, pp. 1941-1946, 2019.

  10. Orbital Decay Analysis for Debris Deorbiting CubeSats in LEO: A Case Study for the VELOX-II Deorbit Mission  [doi],
    Nagavarapu, S.C., Chandran, A., and Hastings, D.E.
    Proceedings of the 8th European Conference on Space Debris, Darmstadt, Germany, pp. 1-6, 2021.

  11. Design and implementation of a Joint Sensing & Communication System for Connected Autonomous Vehicles  [doi],
    Mathew, L.K., Nagavarapu, S.C., and Abraham, A.
    Proceedings of the 17th International Conference on Control, Automation, Robotics and Vision (ICARCV), Singapore, pp. 392-396, 2022.

  12. Recent Trends in Autonomous Vehicle Validation Ensuring Road Safety with Emphasis on Learning Algorithms  [doi],
    Abraham, A., Nagavarapu, S.C., Shitala, P., Vyas, P., and Mathew, L.K.
    Proceedings of the 17th International Conference on Control, Automation, Robotics and Vision (ICARCV), Singapore, pp. 397-404, 2022.

  13. A Robotic Arm-Based Deorbiter CubeSat for Space Debris Removal from LEO  [url],
    Nagavarapu, S.C., Mogan, L.B., Chandran, A., and Hastings, D.E.
    Presented at the 5th COSPAR Symposium on Space Science with Small Satellites, Singapore, 16-21 April, 2023.

  14. A Dynamic Object Removal and Reconstruction Algorithm for Point Clouds  [doi],
    Nagavarapu, S.C., Abraham, A., Nithish, M.S., and Dauwels, J.
    Proceedings of the 17th IEEE International Conference on Service Operations and Logistics, and Informatics (SOLI), Singapore, pp. 1-8, 2023.

  15. A Fail-Safe Graph Exploration Algorithm for Large-Scale Multi-Robot Systems,
    Nagavarapu, S.C., Vachhani, L. and Sinha, A.
    (Manuscript in preparation).

  16. A Beam Steering based Framework for Continuous Target Tracking in Multi-Robot Systems,
    Nagavarapu, S.C., Vachhani, L. and Sinha, A.
    (Manuscript in preparation).

PhD Thesis

  • Multi Robot Exploration and Map Building with Assured Collision Avoidance  [pdf],
    PhD Thesis, Indian Institute of Technology (IIT) Bombay, Mumbai, India, 2016.