Publications

Journal Papers

1. D.M. Stipanovic, I. Hwang, and C. Tomlin, “Computation of an Over-Approximation of the Backward Reachable Set using Subsystem Level Set Functions,” Dynamics of Continuous, Discrete, and Impulsive Systems, Series A: Mathematical Analysis, Vol. 11, pp. 399-411, December 2003.

2. I. Hwang*, H. Balakrishnan, and C. Tomlin, “State Estimation for Hybrid Systems: Applications to Aircraft Tracking,” IEE Proceedings of Control Theory and Applications, Vol. 153(5): 556-566, September 2006.

3. J.L. Yepes, I. Hwang, and M. Rotea, “New Algorithms for Aircraft Intent Inference and Trajectory Prediction,” AIAA Journal of Guidance, Control and Dynamics, Vol. 30 (2): 370-382, March-April 2007.

4. I. Hwang, J. Kim, and C. Tomlin, “Protocol-Based Conflict Resolution for Air Traffic Control,” Air Traffic Control Quarterly, Vol. 15(1), 2007.

5. I. Hwang, H. Balakrishnan, K. Roy, and C. Tomlin, “Multiple-Target Tracking and Identity Management Algorithm with Application to Aircraft Tracking,” AIAA Journal of Guidance, Control and Dynamics, Vol. 30(3): 641-653, May-June 2007.

6. S. Oh, I. Hwang, and S. Sastry, “Distributed Multiple-Target Tracking and Identity Management,” AIAA Journal of Guidance, Control and Dynamics, Vol. 31(1), January-February 2008.

7. I. Hwang, J. Li, and D. Du, “A Numerical Algorithm for Optimal Control of a Class of Hybrid Systems: Differential Transformation Based Approach,” International Journal of Control, Vol. 8(2): 277-293, February 2008.

8. I. Hwang and C.-E. Seah, “Intent Based Probabilistic Conflict Detection for the Next Generation Air Transportation System,” Proceedings of the IEEE Special Issue on Aviation Information Systems, Vol. 96 (12), December 2008. 

9. C.-E. Seah and I. Hwang, “State Estimation for Stochastic Linear Hybrid Systems with Continuous-State-Dependent Transitions: An IMM Approach,” IEEE Transactions on Aerospace and Electronic Systems, Vol. 45(1), January 2009.

10. C.-E. Seah and I. Hwang, “Stochastic Linear Hybrid Systems: Model, Estimation, and Application to Aircraft Tracking,” IEEE Transactions on Control Systems Technology, Vol. 17(3), May 2009.

11. C.-E. Seah and I. Hwang, “Terminal-Area Aircraft Tracking by Hybrid Estimation,” AIAA Journal of Guidance, Control and Dynamics, Vol. 32 (3), p836-849, May-June 2009.

12. I. Hwang, J. Li, and D. Du, “Differential Transformation and Its Application to Nonlinear Optimal Control,” ASME Journal of Dynamic Systems, Measurement, and Control, Vol. 131 (5), September 2009.

13. C.-E. Seah and I. Hwang, “Algorithm for Performance Analysis of the IMM Algorithm” IEEE Transactions on Aerospace and Electronic Systems, Vol. 47(2), p1114- 1124, April 2011.

14. Y. Eun, I. Hwang, and H. Bang, "Optimal Arrival Flight Sequencing and Scheduling using Discrete Air-borne Delays," IEEE Transactions on Intelligent Transportation Systems, Vol. 11(2), p359-373, June 2010.

15. I. Hwang, S. Kim, Y. Kim, and C.-E. Seah, "A Survey of Fault Detection, Identification, and Reconfiguration Methods,” IEEE Transactions on Control Systems Technology, Vol. 18(3), May 2010. (109 ranked in the category Automation & Control Systems (papers between 2010 to 2014) Web of Science). 

16. C.-E. Seah, A. Aligawesa, and I. Hwang, "An Algorithm for Conformance Monitoring in Air Traffic Control," AIAA Journal of Guidance, Control and Dynamics, Vol. 33(2), March-April 2010.

17. J. Li, T. Wang, M. Savai, and I. Hwang, "A Graph-Based Algorithm for Dynamic Airspace Configuration," AIAA Journal of Guidance, Control and Dynamics, Vol. 33(4), p1082-1094, July-August 2010.

18. W. Liu and I. Hwang, "Robust Estimation and Fault Detection and Isolation Algorithms for Stochastic Linear Hybrid Systems with Unknown Fault Input," IET Control Theory & Applications, Vol. 5(12), pp.1353 – 1368, August 2011.

19. J. Jin and I. Hwang, “Attitude Control of a Spacecraft with Single Variable-speed Control Moment Gyroscope”, AIAA Journal of Guidance, Control and Dynamics, Vol. 34(6), November-December 2011.

20. R. Huang, I. Hwang, and M. Corless "A Nonlinear Algorithm for Tracking Interplanetary Low-Thrust Trajectories," AIAA Journal of Guidance, Control and Dynamics, Vol. 35(2), p696-700, March–April 2012

21. W. Liu and I. Hwang, "Probabilistic Trajectory Prediction and Conflict Detection for Air Traffic Control," AIAA Journal of Guidance, Control and Dynamics, Vol. 34(6), p1779-1789, November-December 2011.

22. G. Mann and I. Hwang, "Four-Dimensional Aircraft Taxiway Conformance Monitoring with Constrained Stochastic Linear Hybrid Systems," AIAA Journal of Guidance, Control and Dynamics, Vol.35(5), p1593-1604, September-October 2012

23. G. Mann and I. Hwang, "State Estimation and Fault Detection and Identification for Constrained Stochastic Linear Hybrid Systems," IET Control Theory & Applications, Vol. 7(1), p1-15, January 2013.

24. X. Zhang, X. Guan, I. Hwang, and K. Cai, “A Hybrid Distributed-Centralized Conflict Resolution Approach for Multi-aircraft based on Cooperative Co-evolutionary,” Science China Information Sciences, Vol.56, Springer, March 2013. DOI: 10.1007/s11432-013-4836-3

25. Y. Qian, C. Li, W. Jing, I. Hwang, and J. Wei, “Sun-Earth-Moon Autonomous Orbit Determination for Quasi-periodic Orbit about the Translunar Libration Point and its Observability Analysis,” Aerospace Science and Technology, Vol.28(1), pages 289-296, July 2013.

26. W. Liu, J. Wei, M. Liang, Y. Cao, and I. Hwang, “Multi-sensor Fusion and Fault Detection for Air Traffic Surveillance,” IEEE Transactions on Aerospace and Electronic Systems, Vol.49(4), pp.2323-2399, October 2013.

27. W. Liu and I. Hwang, “On Hybrid State Estimation for Stochastic Hybrid Systems,” IEEE Transactions on Automatic Control, Vol.59(10), pp.2615-2628, October 2014. 

28. H. Choi, Y. Kim, and I. Hwang, “Reactive Collision Avoidance of UAV using Single Vision Sensor “, AIAA Journal of Guidance, Control and Dynamics, Vol.36(4), pp. 1234-1240, July-August 2013.

29. W. Liu and I. Hwang, “Probabilistic Aircraft Mid-Air Conflict Resolution Using Stochastic Optimal Control,” IEEE Transactions on Intelligent Transportation System, Vol.15(1), pp. 37-46, February 2014.

30. J. Goppert, A. Shull, N. Sathyamoorthy, W. Liu, V. Sciandra, I. Hwang and H. Aldridge, “Hardware/Software-in-the-Loop Analysis of Cyberattacks on Unmanned Aerial Systems,” AIAA Journal of Aerospace Information System, Vol. 11(5), pp. 337-343, May 2014.

31. S. Chandrasekar and I. Hwang, “An Algorithm for Optimal Arrival and Departure Sequencing and Runway Assignment”, AIAA Journal of Guidance, Control and Dynamics, Vol. 11(5), pp. 1-13, May 2014.

32. S. Lee, W. Liu, and I. Hwang, "Markov Chain Approximation Algorithm for Event-Based State Estimation," IEEE Transactions on Control Systems Technology, Vol. 23(3), pp. 1123-1130 May 2015. 

33. X. Guan, X. Zhang, I. Hwang, and D. Sun, “An Efficient Routing Strategy on Spatial Scale-free Network,” International Journal of Modern Physics C, Vol.25(7), pp.1-15, January 2014

34. J. Wei, V. Sciandra, I. Hwang, and W. Hall, “Design and Evaluation of a Dynamic Sectorization Algorithm for Terminal Airspace,” AIAA Journal of Guidance, Control and Dynamics, Vol.37(5), pp.1539-1555, September 2014

35. C. Kwon, W. Liu and I. Hwang, “Analysis and Design of Stealthy Cyber Attacks on Unmanned Aerial Systems”, AIAA Journal of Aerospace Information Systems, Vol.11(8), pp. 525-539, August 2014

36. X. Guan, X. Zhang, J. Wei, I. Hwang, Y. Zhu, and K. Cai, “A Strategic Conflict Avoidance Approach based on Cooperative Coevolutionary with the Dynamic Grouping Strategy” International Journal of Systems Science, Vol.47(9), pp. 1995-2008, December 2014, DOI:10.1080/00207721.2014.96628

37. W. Liu and I. Hwang, “Partially-Observable Stochastic Hybrid Systems (POSHSs) State Estimation and Optimal Control,” Asian Journal of Control, March 20, 2015, DOI: 10.1002/asjc.1121

38. Y. Matsuno, T. Tsuchiya, J. Wei, I. Hwang and N. Matayoshi, “Stochastic Optimal Control for Aircraft Conflict Resolution under Wind Uncertainty,” Aerospace Science and Technology, Vol.43, pp. 77—88, June 2015, DOI:10.1016/j.ast.2015.02.018

39. S. Lee and I. Hwang, “Event-Based State Estimation for Stochastic Hybrid Systems”, IET Control Theory and Applications, June 2015, DOI: 10.1049/iet-cta.2014.1205

40. S. Lee, I. Hwang, and K. Leiden, “Intent Inference Based Flight Deck Human-Automation Mode Confusion Detection,” AIAA Journal of Aerospace Information Systems, Vol.12(8), pp. 503-518, August, 2015, DOI: 10.2514/1.I010331

41. S. Shin, J.S. Nandiganahalli, J. Wei, and I. Hwang, “Diagnostic Throughput Factor Analysis Tool for En-route Airspace,” AIAA Journal of Aircraft, Vol. 53(3), pp. 665-679, May 2016 

42. C. Kwon and I. Hwang, “Cyber Attack Mitigation for Cyber-Physical Systems: Hybrid System Approach to Controller Design”, IET Control Theory and Applications, Vol.10(7), pp. 731-741, April, 2016, DOI: 10.1049/iet-cta.2014.1013

43. I. Hwang, C.-E. Seah, and S. Lee, "A Study on Stability Analysis of the Interacting Multiple Model Algorithm," IEEE Transactions on Automatic Control, Vol.59(10), April 25, 2016, DOI: 10.1109/TAC.2016.2558156

44. C. Kwon, S. Yantek, and I. Hwang, “Real-Time Safety Assessment of Unmanned Aircraft Systems against Stealthy Cyber Attacks”, AIAA Journal of Aerospace Information Systems, Vol.13(1), pp. 27-45, January 2016, doi: 10.2514/1.I010388

45. J.S. Nandiganahalli, S. Lee, and I. Hwang, “Formal Verification for Mode Confusion in the Flight Deck using Intent-based Abstraction,” AIAA Journal of Aerospace Information Systems, Vol. 13(9), pp. 343-356, September 2016, DOI: 10.2514/1.I010393

46. J. Lee, S. Lee, and I. Hwang, “Hybrid System Modeling and Estimation for Estimated Time of Arrival Prediction in Terminal Airspace,” AIAA Journal of Guidance, Control and Dynamics, Vol.39(4), pp. 903-910, April 2016, DOI: 10.2514/1.G001412

47. D. Kun and I. Hwang, "Linear Matrix Inequality-based Nonlinear Adaptive Robust Control of a Quadrotor," AIAA Journal of Guidance, Control and Dynamics, Vol.39(5), pp. 996-1008, May 2016, DOI: 10.2514/1.G001439

48. R. Lu, X. Guan, X. Zhang, and I. Hwang, “A Large-scale Flight Multi-objective Assignment Approach based on Multi-island Parallel Evolution Algorithm with Cooperative Coevolutionary” SCIENCE CHINA Information Sciences, July 2016, DOI: 10.1007/s11432-015-5495-3 

49. S. Lee, H. Lyu, and I. Hwang, “Analytical Uncertainty Propagation for Satellite Relative Motion along Elliptic Orbits,” AIAA Journal of Guidance, Control and Dynamics, Vol.39(7), pp. 1593-1601, July 2016. DOI: 10.2514/1.G00184

50. S. Lee, J. Lee, and I. Hwang, “Maneuvering Spacecraft Tracking via State-Dependent Adaptive Estimation,” AIAA Journal of Guidance, Control and Dynamics, Vol.39(9), pp.2034-2043, September 2016, DOI:10.2514/1.G001567

51. A. Vaidya, S. Lee, and I. Hwang, “Data-Driven Modeling and Analysis Framework for Cockpit Human–Machine Interaction Issues,” AIAA Journal of Aerospace Information Systems, Vol.13(9), pp. 370-380, September 2016 

52. S. Shin and I. Hwang, “Data Mining Based Computer Vision Analytics for Automated Helicopter Flight State Inference,” AIAA Journal of Aerospace Information Systems, Vol.14(12), pp. 652-662, December 2017, DOI: https://doi.org/10.2514/1.I010517

53. K. Kim and I. Hwang, “Intent-Based Detection and Characterization of Aircraft Maneuvers in En Route Airspace,” AIAA Journal of Aerospace Information Systems, Vol.15(2), pp. 72-91, February 2018

54. H. Lyu, J.S. Nandiganahalli, S. Lee, and I. Hwang, “Automation Intent Inference Using the GFHMM for Flight Deck Mode Confusion Detection,” AIAA Journal of Aerospace Information Systems,  Vol. 15(3), pp. 172-177, March 2018

55. B. Oh, K. Kim, H. Choi, and I. Hwang, “Cooperative Multi–Agent based Algorithm for Evacuation Planning for Victims with Different Urgency,” AIAA Journal of Aerospace Information Systems, Vol. 15(6), pp. 382-395, June 2018.

56. S. Lee and I. Hwang, “Reachable Set Computation for Spacecraft Relative Motion with Energy-Limited Low-Thrust,” Aerospace Science and Technology, Vol.77, pp. 180-188, June 2018, DOI:  https://doi.org/10.1016/j.ast.2018.02.034

57. C. Kwon and I. Hwang, "Reachability Analysis for Safety Assurance of Cyber-Physical Systems against Cyber Attacks," IEEE Transactions on Automatic Control, Vol.63(7), pp. 2272-2279, July 2018. DOI: 10.1109/TAC.2018.2867341 

58. J.S. Nandiganahalli, C. Kwon, and I. Hwang, “Prediction-based Adaptive Robust Tracking Control of an Uncertain First-Order Time-Delay System,” Asian Journal of Control, Vol. 21(6), pp. 1-6, November 2018. DOI: http://dx.doi.org/10.1002/asjc.1857

59. S. Lee, H. Lyu, and I. Hwang, “Approximated Closed-Form Solution to Fuel-Optimal Satellite Formation Reconfiguration near Elliptic Orbits,” AIAA Journal of Guidance, Control and Dynamics, Vol.41(9), pp. 2078-2084, June 2018 

60. R. Deshmukh, O. Thapliyal, C. Kwon and I. Hwang, “Distributed State Estimation for a Stochastic Linear Hybrid System over a Sensor Network”, IET Control Theory and Applications, Vol.12(10), pp. 1456-1464, June 2018,  DOI: 10.1049/iet-cta.2017.1208

61. C. Kwon and I. Hwang, "Sensing-Based Distributed State Estimation for Cooperative Multi-Agent Systems," IEEE Transactions on Automatic Control, August 2018, DOI:10.1109/TAC.2018.2867341

62. C. Zhang and I. Hwang, “Multiple Maneuvering Target Tracking Using A Single Unmanned Aerial Vehicle,” AIAA Journal of Guidance, Control and Dynamics, Vol. 42(1), pp. 78-90, January 2019, DOI: https://doi.org/10.2514/1.G002696

63. O. Thapliyal, J.S. Nandiganahalli and I. Hwang, “Kalman Filtering with State-Dependent Packet Losses”, IET Control Theory and Applications, Vol.13(2), pp.306-312, February 2019, DOI:  10.1049/iet-cta.2018.5425

64. R. Deshmukh, and I. Hwang, “Incremental Learning Based Unsupervised Anomaly Detection Algorithm for Terminal Airspace Operations,” AIAA Journal of Aerospace Information Systems, Vol.16(9), pp.362-384, September 2019

65. Y. Miao, I. Hwang, M. Lu, and F. wang, “Adaptive Fast Nonsingular Terminal Sliding Mode Control for Attitude Tracking of Flexible Spacecraft with Rotating Appendage,” Aerospace Science and Technology, Vol.93, October 2019, DOI: 10.1016/j.ast.2019.105312

66. D. Sun, C. Kwon, and I. Hwang, “Hybrid Flocking Control Algorithm for Fixed-wing Aircraft,” AIAA Journal of Guidance, Control and Dynamics, Vol.42(11), November 2019, DOI: 10.2514/1.G004227

67. Y. Qian, Z. Liu, J. Guo, X. Yang, I. Hwang, and W. Zhang, “Novel Subharmonic Resonance Periodic Orbits for a Solar Sail in Earth-Moon System,” AIAA Journal of Guidance, Control and Dynamics, Vol.42(11), pp.2532-2540, November 2019. DOI: 10.2514/1.G004377

68. J.S. Nandiganahalli, C. Kwon, and I. Hwang, “Delay-tolerant Adaptive Robust Tracking Control of Uncertain Time-Delay Systems,” IEEE Transactions on Automatic Control, Vol.65(2), pp.695-710, February 2020, DOI: 10.1109/TAC.2019.2916941 

69. D. Kim and I. Hwang, “Dynamic Model-based Feature Aided Data Association Filter in Target Tracking,” IET Radar, Sonar & Navigation, Vol.14(2), February 2020,  DOI: 10.1049/iet-rsn.2019.0381

70. F. Wang, Y. Miao, C. Li, and I. Hwang, “Attitude Control of Flexible Spacecraft with Predefined-time Stability,” The Journal of Franklin Institute, Vol.357(7), pp.4212-4221, May 2020, DOI: 10.1016/ j.jfranklin.2020.01.001

71. D. Kim, C. Kwon, and I. Hwang, “Gaussian Mixture Probability Hypothesis Density Filter against Measurement Origin Uncertainty,” Signal Processing, Vol.171, June 2020, DOI: 10.1016/j.sigpro.2019.107448

72. S. Shin and I. Hwang, “Helicopter Cockpit Audio Data Analysis to Infer Flight State Information,” Journal of the American Helicopter Society, Vol. 65(3), pp. 1-8, July 2020.

73. R. Deshmukh, D. Sun, K. Kim, and I. Hwang, “Reactive Temporal Logic-based Precursor Detection Algorithm for Terminal Airspace Operations,” AIAA Journal of Air Transportation, Invited, published online on August 19, 2020, DOI: 10.2514/1.D0182 

74. C. Zhang and I. Hwang, “Multi-target Identity Management with Decentralized Optimal Sensor Scheduling,” European Journal of Control, Vol.56, pp.10-37, November, 2020, DOI: 10.1016/j.ejcon.2020.01.004

75. K. Kim, R. Deshmukh, and I. Hwang, “Development of Data-Driven Conflict Resolution Generator for En-Route Airspace,” Aerospace Science and Technology, Vol.114, July 2021, DOI: 10.1016/j.ast.2021.106744

76. R. Deshmukh, D. Sun, K. Kim and I. Hwang, “Temporal Logic Learning-based Anomaly Detection in Metroplex Terminal Airspace Operations,” Transportation Research Part C, Vol.126, May 2021, DOI: 10.1016/j.trc.2021.103036

77. J. Zhou, D. Sun, I. Hwang, and D. Sun, “Control Protocol Design and Analysis for Unmanned Aircraft System Traffic Management,” IEEE Transactions on Intelligent Transportation System, Special Issue on Unmanned Aircraft System Traffic Management, Vol.22(9), pp. 5914-5925, September 2021, DOI: 10.1109/TITS.2021.3083675

78. B. Du, D. Sun, and I. Hwang, “Distributed State Estimation for Stochastic Linear Hybrid Systems with Finite-Time Fusion,” IEEE Transactions on Aerospace and Electronic Systems, June 28, 2021. DOI: 10.1109/TAES.2021.3082672

79. D. Sun, I. Hwang and M. Corless, “Controlled Mode Distinguishability for Cybersecurity,” IEEE Control Systems Letter, Vol.6, pp. 998-1003, June 2021, DOI: 10.1109/LCSYS.2021.3088301

80. C. Zhang and I. Hwang, “Multi-target Identity Management for Unknown and Time-Varying Number of Targets in Clutter,” European Journal of Control, Vol.60, pp. 20-35, July 2021 

81. H. Choi, C. Deng, and I. Hwang, “Hybrid Machine Learning and Estimation-based Flight Trajectory Prediction in Terminal Airspace,” IEEE Access, Vol.9, November 2021, DOI: 10.1109/ACCESS.2021.3126117

82. S. Clarke, S. Byeon, and I. Hwang, “A Low Complexity Approach to Model-Free Stochastic Inverse Linear Quadratic Control,” IEEE Access, Vol.10, pp. 9298-9308, January 20, 2022, DOI: 10.1109/ACCESS.2022.3144933 

83. D. Sun, and I. Hwang, “On Controlled Mode Discernibility for Nonlinear Hybrid Systems with Unknown Exogenous Input,” Automatica, Vol.142(110339), August 2022, DOI:  https://doi.org/10.1016/j.automatica.2022.110339 

84. C. Deng, H. Choi, H. Park, and I. Hwang, “Trajectory Pattern Identification and Classification for Real-Time Air Traffic Applications in Area Navigation Terminal Airspace,” Transportation Research Part C, Vol.142, September 2022, DOI: https://doi.org/10.1016/j.trc.2022.103765 

85. Y-C. Sun, D. Kim and I. Hwang, “Multiple-model Gaussian Mixture Probability Hypothesis Density Filter based on Jump Markov System with State-dependent Probabilities,” IET Radar, Sonar & Navigation, Vol.16(11), pp. 1881-1894, November 2022, DOI: https://doi.org/10.1049/rsn2.12304 

86. O. Thapliyal and I. Hwang, “Approximate Reachable Set Computation for Koopman Systems Using Mixed Monotonicity,” IEEE Access, Vol.10, pp. 84754 - 84760, July 2022, DOI: 10.1109/ACCESS.2022.3194851 

87. S. Byeon, D. Sun, and I. Hwang, “An Inverse Optimal Control Approach for Learning and Reproducing under Uncertainties,” IEEE Control Systems Letter, Vol.7, pp. 787-792, December 2022, DOI: 10.1109/LCSYS.2022.3226882 

88. H. Choi, C. Deng, H. Park, and I. Hwang, “Gaussian Mixture Model-based Online Anomaly Detection for Vectored Area Navigation Arrivals,” AIAA Journal of Aerospace Information Systems, Vol. 20(1), pp. 37-52, January 2023, DOI: https://doi.org/10.2514/1.I011128 

89. Y-C. Sun and I. Hwang, “Gaussian Mixture Probability Hypothesis Density Filter with Dynamic Probabilities: Application to Road Traffic Surveillance,” European Journal of Control, Vol. 69, January 2023, DOI: https://doi.org/10.1016/j.ejcon.2022.100761 

90. S. Byeon, J. Choi, Y. Zhang, and I. Hwang, “Intelligent Tutor Framework for Human Training in Cyber-Physical Human Systems using Skill-Level-Based Stochastic Shared Control,” ACM Transactions on Human Robot Interaction, June 06, 2023, DOI: https://doi.org/10.1145/3603194 

91. S. Hwang, M. Cho, S. Kim, and I. Hwang, “An LMI-based Risk Assessment of Leader-Follower Multi-Agent System under Stealthy Cyberattacks,” IEEE Control Systems Letter, Vol.7, pp. 2419 - 2424, June 23 2023, DOI: 10.1109/LCSYS.2023.3286775 

92. S. Khan, K. Pant, and I. Hwang, “Synthesis of Robust State Estimation Algorithms under Unknown Sensor Inputs,” IEEE Control Systems Letter, Vol.7, pp. 2707-2712, June 23 2023, DOI: 10.1109/LCSYS.2023.3289437 

93. O. Thapliyal and I. Hwang, “Approximating Reachable Sets for Neural Network based Models in Real-Time via Optimal Control,” IEEE Transactions on Control Systems Technology, Vol. 31(4), pp. 1901-1908, July 2023, DOI: 10.1109/TCST.2023.3234248 

94. S. Clarke, S. Hwang, O. Thapliyal and I. Hwang, “Distributed Denial-of-Service Resilient Control for Urban Air Mobility Applications,” AIAA Journal of Aerospace Information Systems, September 5, 2023, DOI: https://doi.org/10.2514/1.I011222 

95. S. Khan, R. Deshmukh, and I. Hwang, “Optimal Kalman Filter with Information-Weighted Consensus,” IEEE Transactions on Automatic Control, Vol.68(9), pp. 5624-5629, September 2023, DOI: 10.1109/TAC.2022.3220528 

96. H. Choi, C. Deng, H. Park, and I. Hwang, “Stochastic Conformal Anomaly Detection and Resolution for Air Traffic Control,” Transportation Research Part C: Emerging Technologies, Vol.15, September 2023, DOI: https://doi.org/10.1016/j.trc.2023.104259 

97. C. Deng, H. Choi, H. Park, and I. Hwang, “Temporal Precursor Discovery Using LSTM with Feature Attention,” AIAA Journal of Aerospace Information Systems, October 18, 2023, DOI: https://doi.org/10.2514/1.I011225 

98. S. Byeon, J. Choi, and I. Hwang, “A Computational Framework for Optimal Adaptive Function Allocation in Human-Autonomy Teaming,” IEEE Open Journal of Control Systems, Vol.3, pp. 32-44, December 6, 2023, DOI: 10.1109/OJCSYS.2023.3340034 

99.  J. Choi, H. Park, and I. Hwang, “Bootstrapped Gaussian Mixture Model-Based Data-Driven Forward Stochastic Reachability Analysis,” IEEE Control Systems Letter, Vol.8, pp. 1-6, December 25, 2023, DOI: 10.1109/LCSYS.2023.3347188 

100. D. Sun, I. Hwang, and J. Goppert, “A Stealthy Man-in-the-Middle Attack Strategy for Switched Systems,” International Journal of Systems Science, January 23, 2024, DOI: 10.1080/00207721.2024.2304127 

101. S. Khan, I. Hwang, and J. Goppert “Exploiting Sparsity for Localization of Large-Scale Wireless Sensor Networks”, IET Wireless Sensor Systems, February 12, 2024, DOI: https://doi.org/10.1049/wss2.12074 

102. S. Byeon, D. Sun and I. Hwang, “Human Behavior Modeling via Identification of Task Objective and Variability,” IEEE Transactions on Human-Machine Systems, (1st revision submitted on June 24, 2023; under review) 

103. D. Sun, M. Cho, and I. Hwang, “On Attack Detection and Identification for the Cyber-Physical System using Lifted System Model,” Automatica, (1st revision submitted on December 16, 2023; under review) 

104. L.-Y. Lin, J. Goppert, and I. Hwang, “Correct-by-Construction Control Design for Mixed-Invariant Systems in Lie Groups,” IEEE Transactions on Automatic Control, (Accepted on February 15, 2024) 

105. S. Khan and I. Hwang, “Recovery of Localization Errors in Sensor Networks using Inter-Agent Measurements”, IEEE Transactions on Automatic Control, (submitted on July 28, 2023; under review) 

106. S. Khan and I. Hwang, “Collaborative Fault-Identification & Reconstruction in Multi-Agent Systems”, IEEE Transactions on Automatic Control, (submitted on September 22, 2023; under review) 

107. J. Choi, S. Byeon, and I. Hwang, “Data-Driven Forward Stochastic Reachability Analysis for Nonlinear Human-in-the-Loop Systems,” IEEE Transactions on Control System Technology, (submitted on September 27, 2023; 1st revision requested on February 2, 2024; under revision) 

108. C. Deng, H. Choi, H. Park, and I. Hwang, “Multi-Agent Based Transfer Learning for Data-Driven Air Traffic Applications,” IEEE Transactions on Intelligent Transportation System, (Submitted on February 9, 2024; under review) 

109. J. Li, H. Park, W. Hao, L. Xin, J. Chavez-Galaviz, A. Chaudhary, M. Bloss, K. Pattison, C. Vo, D. Upadhyay, I. Hwang, S. Mou, S Shreyas, and N. Mahmoudian, “Cascade Control with Change Point Detection and Deep Koopman Learning for Autonomous Surface Vehicles,” IEEE Transactions on Intelligent Vehicles, (Submitted on March 9, 2024; under review)

110. H. Choi, C. Deng, H. Park, J. Ryu, H. Lee, and I. Hwang, “Multi-agent Estimated Time of Arrival Prediction and Dynamic Arrival Sequencing by Emulating Air Traffic Controllers,” Journal of Ari Transport Management, (Submitted on March 27, 2024; under review)

Book Chapters

1. I. Hwang, H. Balakrishnan, R. Ghosh, and C. Tomlin, “Reachability Analysis of Delta-Notch Lateral Inhibition using Predicate Abstraction,” in High Performance Computing, Lecture Notes in Computer Science, LNCS 2552, Springer Verlag, 2002.

2. H. Balakrishnan, I. Hwang, J. Jang, and C. Tomlin, “Inference Methods for Autonomous Stochastic Linear Hybrid Systems,” in Hybrid Systems: Computation and Control, Lecture Notes in Computer Science, Springer Verlag, March 2004.

3. I. Hwang, D.M. Stipanovic, and C. Tomlin, “Polytopic Approximations of Researchable Sets Applied to Linear Dynamic Games and to a Class of Nonlinear Systems,” Advances in Control, Communication Networks, and Transportation Systems: In Honor of Pravin Varaiya, E.H. Abed (Ed.), Systems and Control: Foundations and Applications Series, Birkhauser, Boston, 2005.Birkhauser, 2005.

4. C.-E. Seah and I. Hwang, “Hybrid Estimation for Stochastic Piecewise Linear Systems,” In Hybrid Systems: Computation and Control, Lecture Notes in Computer Science, Springer, April 2007.

5. I. Hwang and C. Kwon, “System and Cyber Security: Requirements, Modeling, and Management”, Encyclopedia of Aerospace Engineering, John Wiley & Sons, Ltd., June 20, 2016, doi: 10.1002/9780470686652.eae1150

6. C. Kwon and I. Hwang, “Cyberattack-Resilient Hybrid Controller Design with Application to Unmanned Aircraft Systems”, in Safe, Autonomous and Intelligent Vehicles” as part of Springer's Unmanned System Technologies series, Springer, 2018

7. D. Sun and I. Hwang, “Hybrid System-based Cyberattack Identification and Mitigation”, Smarter Cyber Physical Systems: Enabling Methodologies and Applications, CRC Press, 2023 (accepted)

Conference Papers

1. M.J. Tahk, B.K. Park, B.C. Sun, I. Hwang, H. Cho, and T.L. Song, “The Closed-Form Solution and its Approximation of the Optimal Guidance Law,” The 12th World Congress of IFAC, Sydney, Australia, July 1993

2. M.J. Tahk, B.K. Park, and I. Hwang, “Performance Comparison of the Optimal Guidance Law and Proportional Navigation for Missile Homing,” The 32nd SICE Annual Conference, Kanazawa, Japan, August 1993.

3. I. Hwang and C. Tomlin, “Protocol-based Conflict Resolution for Finite Information Horizon,” In Proceedings of the AACC American Control Conference, Anchorage, AK, May 2002.

4. I. Hwang, D.M. Stipanovic, and C. Tomlin, “Applications of Polytopic Approximations of Reachable Sets to Linear Dynamic Games and a Class of Nonlinear Systems,” Proceedings of the AACC American Control Conference, Denver, CO, June 2003.

5. D.M. Stipanovic, I. Hwang, and C. Tomlin, “Computation of an Over-Approximation of the Backward Reachable Set using Subsystem Level Set Functions,” In Proceedings of the IEE European Control Conference, Cambridge, UK, September 2003.

6. I. Hwang, H. Balakrishnan, and C. Tomlin, “Observability Criteria and Estimator Design for Stochastic Linear Hybrid Systems,” In Proceedings of the IEE European Control Conference, Cambridge, UK, September 2003.

7. I. Hwang, J. Hwang, and C. Tomlin, “Flight-Mode-Based Aircraft Conflict Detection using a Residual-Mean Interacting Multiple Model Algorithm,” In Proceedings of the AIAA Guidance, Navigation, and Control Conference, Austin, Texas, August 2003.

8. M. Oishi, I. Hwang, and C. Tomlin, “Immediate Observability of Discrete Event Systems with Applications to User-Interface Design,” In Proceedings of the 42nd IEEE Conference on Decision and Control, Maui, Hawaii, December 2003.

9. I. Hwang, H. Balakrishnan, and C. Tomlin, “Performance Analysis of Hybrid Estimation Algorithms,” In Proceedings of the 42nd IEEE Conference on Decision and Control, Maui, Hawaii, December 2003.

10. I. Hwang, H. Balakrishnan, K. Roy, J. Shin, L. Guibas, and C. Tomlin, “Multiple-Target Tracking and Identity Management Algorithm for Air Traffic Control,” Proceedings of the 2nd IEEE Sensors, Toronto, Canada, October 2003.

11. I. Hwang, H. Balakrishnan, K. Roy, and C. Tomlin, “Multiple-Target Tracking and Identity Management in Clutter, with Application to Aircraft Tracking,” Proceedings of the AACC American Control Conference, Boston, MA, June 2004.

12. H. Balakrishnan, I. Hwang, and C. Tomlin, “Polynomial Approximation Algorithm for Belief Matrix Maintenance in Identity Management,” Proceedings of the 43rd IEEE Conference on Decision and Control, Atlantis, Paradise Island, Bahamas, December 2004. 

13. I. Hwang, K. Roy, H. Balakrishnan, and C. Tomlin, “A Distributed Multiple-Target Identity Management Algorithm in Sensor Networks” Proceedings of the 43rd IEEE Conference on Decision and Control, Atlantis, Paradise Island, Bahamas, December 2004. 

14. S. Oh, I. Hwang, K. Roy, and S. Sastry, “A Fully Automated Distributed Multiple-Target Tracking and Identity Management Algorithm,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, San Francisco, CA, August 2005.

15. J.L. Yepes, I. Hwang, and M. Rotea, “An Intent-Based Trajectory Prediction Algorithm for Air Traffic Control,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, San Francisco, CA, August 2005.

16. C.-E. Seah and I. Hwang, “Hybrid Estimation Algorithm using State-Dependent Mode Transition Matrix for Aircraft Tracking,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Keystone, CO, August 2006.

17. C.-E. Seah and I. Hwang, “Target Tracking of Arrival Aircraft using Hybrid Estimation,” Proceedings of the 44th Allerton Conference on Communication, Control, and Computing, Monticello, IL, September 2006.

18. C.-E. Seah and I. Hwang, “An Estimation Algorithm for Stochastic Linear Hybrid Systems with Continuous-State-Dependent Mode Transition,” Proceedings of the 45th IEEE Conference on Decision and Control, San Diego, CA, December 2006. 

19. D. Du and I. Hwang, “A Computational Approach to Solving Optimal Control Problems Using Differential Transformation,” Proceedings of the AACC American Control Conference, New York, NY, July 2007.

20. C.-E. Seah and I. Hwang, “A Hybrid Estimation Algorithm for Terminal Aircraft Tracking,” Proceedings of the AIAA Guidance, Navigation, and Control Conference, Hilton Head, SC, August 2007.

21. D. Du, J. Li, and I. Hwang, “A Computational Method for Optimal Control of Hybrid Systems using Differential Transformation,” Proceedings of the 46th IEEE Conference on Decision on Control, New Orleans, LA, December 12-14, 2007.

22. J. Li, D. Du, and I. Hwang, “A Differential Transform Based Computational Method for Switched Linear Quadratic Optimal Control,” Proceedings of the 46th IEEE Conference on Decision on Control, New Orleans, LA, December 12-14, 2007.

23. C.-E. Seah and I. Hwang, “Performance Analysis of Kalman Filter Based Hybrid Estimation Algorithms,” Proceedings of the 17th IFAC World Congress, Seoul, Korea, July 2008.

24. R. Huang, I. Hwang, and M. Corless, “Application of a New Differential Transformation Based Algorithm to Interplanetary Optimal Low-Thrust Transfers,” Proceedings of the AIAA/AAS Astrodynamics Specialist Conference, 12 pages, Honolulu, HI, August 2008.

25. J. Li and I. Hwang, “Algorithms for Uncertainty Analysis of An Air Traffic Management System," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, 11 pages, Honolulu, HI, August 2008.

26. C.-E. Seah and I. Hwang, “Stability Analysis of the Interacting Multiple Model Algorithm,” In the Proceedings of the AACC American Control Conference, Seattle, WA, June 2008.

27. R. Huang and I. Hwang, “A New Nonlinear Model Predictive Control Algorithm Using Differential Transformation with Application to Interplanetary Low-Thrust Trajectory Tracking,” In the Proceedings of the AACC American Control Conference, St. Louis, MO, June 2009. (Best Session Presentation Paper)

28. C.-E Seah, A. Aligawesa, and I. Hwang, "An Algorithm for Conformance Monitoring in Air Traffic Control," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, August 2009

29. J. Li, C.-E. Seah, and I. Hwang, "An Algorithm for Dynamic Airspace Configuration based on the Air Route Structure," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, August 2009

30. P. Kotecha and I. Hwang, "Optimization based Tube Network Design for the Next Generation Air Transportation System (NextGen)," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Chicago, IL, August 2009

31. J. Li, T. Wang, M. Savai, and I. Hwang, "A Spectral Clustering Based Algorithm for Dynamic Airspace Configuration," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Hilton Head, SC, September 2009

32. C.-E. Seah and I. Hwang, "Fault Detection and Isolation for Stochastic Linear Hybrid Systems," In the Proceedings of the 48th IEEE Conference on Decision and Control, Shanghai, China, December 2009

33. W. Liu, C.-E. Seah and I. Hwang, "Estimation Algorithm for Stochastic Linear Hybrid Systems with Quadratic Guard Conditions," In the Proceedings of the 48th IEEE Conference on Decision and Control, Shanghai, China, December, 2009

34. J. Goppert, and B. Wampler, "Vision Enhanced Navigation and Hybrid Control of Unmanned Vehicles," AIAA Region 3 Student Conference, West Lafayette, IN, April 2010. (Best Presentation Award)

35. T. Wang, J. Li, J. Wei, and I. Hwang, "Preliminary Assessment of Operational Benefits for a Graph-Based Dynamic Airspace Configuration Algorithm," In the Proceedings of the 2010 Integrated Communications, Navigation and Surveillance (ICNS) Conference, Herndon, VA, May 11-13, 2010.

36. W. Liu and I. Hwang, “Robust Estimation Algorithm for A Class of Hybrid Systems with Unknown Continuous Fault Input,” Proceedings of the AACC American Control Conference, Baltimore, MD, June 2010.

37. A. Aligawesa and I. Hwang, “Hybrid System's Model and Algorithm for Highway Traffic Monitoring,” Proceedings of the AACC American Control Conference, Baltimore, MD, June 2010.

38. T. Wang, J. Li, and I. Hwang, "A Sectorization Method for Dynamic Airspace Configuration," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Toronto, Canada, August 2010.

39. M. Savai, J. Li, T. Wang, and I. Hwang, "An Algorithm for Adaptable Dynamic Airspace Configuration," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Fort Worth, TX, September 2010.

40. T. Wang, J. Li, J. Wei, and I. Hwang, "Dynamic Airspace Configuration Analysis for the Current and Future Traffic Scenarios," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Fort Worth, TX, September 2010.

41. M. Savai, J. Wei, and I. Hwang, "A Multilevel Graph Partitioning Algorithm for Dynamic Airspace Configuration," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Fort Worth, TX, September 2010.

42. W. Liu, C.-E. Seah and I. Hwang, "Probabilistic 4D Trajectory Prediction and Conflict Detection for Air Traffic Control," In the Proceedings of the 49th IEEE Conference on Decision and Control, Atlanta, GA, December 2010.

43. A. Kim and I. Hwang, "A Hybrid-Systems Based Algorithm for Optimal Trajectory Generation with Obstacle Avoidance for an MAV Swarm," In the Proceedings of the AIAA Infortech@Aerospace 2011, St. Louis, MO, March 2011.

44. W. Liu and I. Hwang, "Optimal Sensor Scheduling Algorithm for Hybrid System State Estimation," In the Proceedings of the AACC American Control Conference, San Francisco, CA, June 2011. (Best Session Presentation Paper)

45. H. Choi, Y. Kim and I. Hwang, "Vision-based Reactive Collision Avoidance Algorithm for Unmanned Aerial Vehicle," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Portland, OR, August 2011. 

46. S. Chandrasekar and I. Hwang, "Fault-Tolerant Attitude Control of a Micro-Satellite using a Redundancy-Free Single Gimbal Variable Speed Control Mount Gyroscope (SGVSCMG) system," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Portland, OR, August 2011. 

47. G. Mann and I. Hwang, "4D Aircraft Taxi Conformance Monitoring with Stochastic Linear Hybrid Systems," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Portland, OR, August 2011. 

48. W. Liu and I. Hwang, "Stochastic Approximation Algorithm with Application to Event-triggered Filtering," In the Proceedings of the 50th IEEE Conference on Decision and Control, Orlando, FL, December 2011

49. Y. Qian, I. Hwang, W. Jing, and J. Wei, “New Dynamic Model for Lunar Probe and Its Application to Quasi-Periodic Orbit about the Translunar Libration Point,” In the Proceedings of the 2011 Astrodynamics Specialist Conference, Girdwood, Alaska, 2011.

50. J. Goppert, A. De Marco, and I. Hwang, “On Some Trim Strategies for Nonlinear Aircraft Flight Dynamics Models with Open Source Software JSBSim,” In the Proceedings of the CEAS 2011: International Conference of the European Aerospace Societies, Venice, Italy, October 2011.

51. W. Liu and I. Hwang, "A Stochastic Approximation Based State Estimation Algorithm for Stochastic Hybrid Systems," In the Proceedings of the AACC American Control Conference, 2012.

52. W. Liu and I. Hwang, "Probabilistic Aircraft Conflict Resolution: a Stochastic Optimal Control Approach," In the Proceedings of the AACC American Control Conference, 2012.

53. J. Goppert, N. Wenyao, I. Hwang, "ArduPilot One: Extending the Capabilities of the Open-Source ArduPilotMega Autopilot System," In the Proceedings of the AIAA Infotech@Aerospace 2012, Garden Grove, CA, June 2012.

54. A. Kim, B. Wampler, J. Goppert, I. Hwang, and H. Aldridge, "Cyber Attack Vulnerabilities Analysis for Unmanned Aerial Systems Against Cyberattacks," In the Proceedings of the AIAA Infotech@Aerospace 2012, Garden Grove, CA, June 2012.

55. J. Goppert, W. Liu, A. Shull, V. Sciandra, I. Hwang, and H. Aldridge, "Numerical Analysis of Cyberattacks on Unmanned Aerial Systems," In the Proceedings of the AIAA Infotech@Aerospace 2012, Garden Grove, CA, June 2012.

56. R. Huang, M. Corless, and I. Hwang, "Simple Open-Loop and Closed-Loop Guidance Strategies for Low-thrust Spacecraft," In the Proceedings of the AIAA/AAS Astrodynamics Specialist Conference, 12 pages, Minneapolis, MN, August 2012. 

57. W. Liu, C. Kwon. I. Aljanabi, and I. Hwang, "Cyber Security Analysis for State Estimators in Air Traffic Control Systems," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Minneapolis, MN, August 2012. 

58. S. Lee and I. Hwang, "Hybrid High- and Low-Thrust Optimal Path Planning for Satellite Formation Planning," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Minneapolis, MN, August 2012. 

59. J. Wei, I. Hwang, and W. Hall, "Mathematical Programming Based Algorithm for Dynamic Terminal Airspace Configuration," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Indianapolis, IN, September 2012.

60. J. Wei, V. Sciandra, C. Tytler, I. Hwang, and W. Hall, "Graph-Based Dynamic Airspace Configuration Algorithm for Terminal Airspace," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Indianapolis, IN, September 2012.

61. S. Chandrasekar, S. Shin, and I. Hwang, "Throughput Metric Development and Analysis for the National Airspace System," In the Proceedings of the AIAA Aviation Technology, Information, and Operations Conference, Indianapolis, IN, September 2012.

62. W. Liu, and I. Hwang, "Dynamical Filtering Equations for Stochastic Hybrid System State Estimation," In the Proceedings of the 50th IEEE Conference on Decision and Control, Maui, HI, December 2012. 

63. S. Lee, W. Liu, and I. Hwang, "Event-triggered Filtering with Application to Target Tracking in Binary Sensor Networks," In the Proceedings of the 50th IEEE Conference on Decision and Control, Maui, HI, December 2012. 

64. C. Kwon, W. Liu, and I. Hwang, "Security Analysis for Cyber-Physical Systems against Stealthy Deception Attacks," In the Proceedings of the AACC American Control Conference, Washington, DC, June 2013. 

65. J. Goppert and I. Hwang, "Constructing BADA Models of Existing UASs from Public Data and Photos using Open Source Tools," In the Proceedings of the AIAA Modeling and Simulation Technologies Conference, Boston, MA, August 2013. 

66. A. Shull and I. Hwang, "Analysis of Optimal False Data Injection Attacks in Feedback Systems," In the Proceedings of the AIAA Infotech@Aerospace 2013 Conference, Boston, MA, August 2013. 

67. S. Lee and I. Hwang, "Analytical Solutions to Uncertainty Propagation in Satellite Relative Motion," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Boston, MA, August 2013.

68. R. Huang, M. Corless, and I. Hwang, "Simple Control Strategies for Low-Thrust Spacecraft," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Boston, MA, August 2013. 

69. C. Kwon and I. Hwang, "Analytical Analysis of Cyber Attacks on Unmanned Aerial Systems," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Boston, MA, August 2013. (Finalist for the Best Graduate Student Paper Award) 

70. S. Chandrasekar and I. Hwang, "Optimal Arrival and Departure Sequencing on a Runway System," In the Proceedings of the AIAA Guidance, Navigation, and Control Conference, Boston, MA, August 2013.

71. J. Wei, V. Sciandra, I. Hwang and W. Hall, “An Integer Programming based Sector Design Algorithm for Terminal Dynamic Airspace Configuration,” In the Proceedings of the 2013 Aviation Technology, Integration, and Operations (ATIO) Conference, Los Angeles, CA, August 2013.

72. V. Sciandra, J. Wei, I. Hwang and W. Hall, “Benefit Analysis of a Sector Design Algorithm for Terminal Dynamic Airspace Configuration,” In the Proceedings of the 2013 Aviation Technology, Integration, and Operations (ATIO) Conference, Los Angeles, CA, August 2013.

73. S. Shin, J.S. Nandiganahalli and I. Hwang, “Diagnostic Tool for Throughput Factor Analysis in En-route Airspace,” In the Proceedings of the 2013 Aviation Technology, Integration, and Operations (ATIO) Conference, Los Angeles, CA, August 2013. 

74. W. Hall, A. Churchill, P. Lucic, and I. Hwang, “Dynamic Terminal Airspace Configuration,” In the Proceedings of the 2013 Aviation Technology, Integration, and Operations (ATIO) Conference, Los Angeles, CA, August 2013.

75. S. Lee, W. Liu, and I. Hwang, "Event-Based State Estimation Algorithm using Markov Chain Approximation," In the Proceedings of the 52th IEEE Conference on Decision and Control, Firenze, Italy, December 2013.

76. C. Kwon and I. Hwang, "Hybrid Robust Controller Design: Cyber Attack Attenuation for Cyber-Physical Systems," In the Proceedings of the 52th IEEE Conference on Decision and Control, Firenze, Italy, December 2013. 

77. J. Goppert, J.C. Gallagher, I. Hwang, and E. Matson, “Model Checking of a Flapping-Wing Micro-Air-Vehicle Trajectory Tracking Controller Subject to Disturbances,” International Conference on Robot Intelligence Technology and Applications 2013, Denver, CO, December 2013. (Best Paper Award)

78. S. Lee, I. Hwang, and K. Leiden, “Flight Deck Human-Automation Issue Detection via Intent Inference,” International Conference on Human-Computer Interaction in Aerospace (HCI-Aero), July 2014. 

79. J.S. Nandiganahalli, S. Lee, B. Yang and I. Hwang, “User Interface Validation using Mode Confusion Detection,” AIAA Aviation and Aeronautics Forum and Exposition 2014, Atlanta, GA, June 2014. 

80. J. Wei, J. Lee, and I. Hwang, “Estimated Time of Arrival Prediction based on State-Dependent Transition Hybrid Estimation Algorithm,” AIAA SciTech 2015: AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, January 2015.

81. S. Lee and I. Hwang, "Interacting Multiple Model Estimation for Spacecraft Maneuver Detection and Characterization," AIAA SciTech 2015: AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, January 2015.

82. B. Yang, P.K. Menon, and I. Hwang, “Verifying Correctness of Information in Flight-Deck User Interface using Hybrid System Observability,” AIAA SciTech 2015: AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, January 2015.

83. B. Perseghetti, J. Gallagher, J. Goppert, S. Yantek, E. Matson, and I. Hwang, “Optimizing Energy Efficiency of a Flapping Robotic Bird Through Application of Evolutionary Algorithms,” AIAA SciTech 2015: Infotech@Aerospace, Kissimmee, FL, January 2015.

84. C. Kwon and I. Hwang, "Augmented Sensing-Based State Estimation for Cooperative Multi-Agent Systems," In the Proceedings of the AACC American Control Conference, Chicago, IL, June 2015.

85. S. Shin, K. Kim, and I. Hwang, “Identification of Aircraft Conflict Resolution Types from Recorded Flight Data,” AIAA Aviation Forum 2015-ATIO, Dallas, TX, June 2015.

86. J.S. Nandiganahalli and I. Hwang, “Formal Extensions to the Intent-Based Mode Confusion Detection Framework,” AIAA Aviation Forum 2015-ATIO, Dallas, TX, June 2015.

87. D. Kun and I. Hwang, “Nonlinear Adaptive Robust Control with Linear Matrix Inequalities Applied to a Quadrotor,” AIAA SciTech 2016: AIAA Guidance, Navigation, and Control Conference, San Diego, CA, January 2016 (Finalist for the Best Graduate Student Paper Award)

88. S. Shin and I. Hwang, “Helicopter Cockpit Video Data Analysis for Attitude Estimation using DBSCAN Clustering,” AIAA SciTech 2016: AIAA Infotech@Aerospace, San Diego, CA, January 2016 

89. S. Lee and I. Hwang, “State Dependent Adaptive Estimation for Impulsively Maneuvering Spacecraft Tracking,” AIAA SciTech 2016: AIAA Guidance, Navigation, and Control Conference, San Diego, CA, January 2016 (Finalist for the Best Graduate Student Paper Award)

90. J.S. Nandiganahalli, S. Lee, and I. Hwang, “Intent-based Abstraction for Formal Verification of Flight Deck Mode Confusion,” AIAA SciTech 2016: AIAA Infotech@Aerospace, San Diego, CA, January 2016 (Best Graduate Student Paper Award)

91. A. Gavrilovski, H. Jimenez, D. Mavris, A. Rao, S. Shin, I. Hwang, K. Marais, “Challenges and Opportunities in Flight Data Mining: A Review of the State of the Art,” AIAA SciTech 2016: AIAA Infotech@Aerospace, San Diego, CA, January 2016 

92. S. Lee, H. Liu, and I. Hwang, “Analytic Uncertainty Propagation in Satellite Relative Motion along Elliptic Orbits,” 26th AAS/AIAA Space Flight Mechanics Meeting, Napa, CA, February 2016

93. S. Shin and I. Hwang, “Cockpit Alarm Detection and Identification Algorithm for Helicopters,” AHS International 72nd Annual Forum & Technology Display, West Palm Beach, FL, May 2016

94. A. Vaidya, S. Lee, and I. Hwang, “Clustering Algorithm for Large-Scale Flight Data Analysis of Cockpit Human Machine Interaction Issues,” AIAA Aviation Forum 2106-ATIO, Washington D.C., June 2016.

95. K. Kim, M. Sharma, S. Gao, I. Hwang, and B. Yang, “Classification of Conflict Resolution Methods using Data-Mining Techniques,” AIAA Aviation Forum 2106-ATIO, Washington D.C., June 2016.

96. S. Shin and I. Hwang, “Extraction of Helicopter Flight Information from Cockpit Video Data using DBSCAN Clustering,” AIAA Aviation Forum 2106-ATIO, Washington D.C., June 2016.

97. C. Kwon and I. Hwang, "Recursive Reachable Set Computation for On-line Safety Assessment of the Cyber-Physical System against Stealthy Cyber Attacks," In the Proceedings of the 54th Annual Allerton Conference on Communication, Control, and Computing, Urbana-Champaign, IL, September 2016.

98. C. Kwon and I. Hwang, "Constrained Stochastic Hybrid System Modeling to Road Map - GPS Integration for Vehicle Positioning," In the Proceedings of the 55th IEEE Conference on Decision and Control, Las Vegas, NV, December 2016.

99. A. Vaidya, S. Shin and I. Hwang, “Helicopter Engine State Estimation via Cockpit Audio Analysis,” AIAA SciTech 2017: Intelligent Systems, Gaylord, TX, January 2017. 

100. H. Lyu, J.S. Nandiganahalli and I. Hwang, “Human Automation Interaction Issue Detection Using a Generalized Fuzzy Hidden Markov Model,” AIAA SciTech 2017: Intelligent Systems, Gaylord, TX, January 2017. (Finalist for the Best Graduate Student Paper Award) 

101. J.S. Nandiganahalli, S. Lee, and I. Hwang, “Flight Deck Mode Confusion Detection using Intent-based Probabilistic Model Checking,” AIAA SciTech 2017: Intelligent Systems, Gaylord, TX, January 2017. (Finalist for the Best Graduate Student Paper Award) 

102. C. Zhang and I. Hwang, “Gaussian Sum-based Maneuvering Target Tracking Using Unmanned Aerial Vehicle,” AIAA SciTech 2017: AIAA Guidance, Navigation, and Control Conference, Gaylord, TX, January 2017. (Finalist for the Best Graduate Student Paper Award) 

103. B. Yang, S. Park, J.S. Nandiganahalli and I. Hwang, “A Hybrid-Systems Approach for Analyzing Pilot-Cockpit Interactions,” AIAA SciTech 2017: Modeling and Simulation Technologies, Gaylord, TX, January 2017.

104. R. Deshmukh, K. Kwon and I. Hwang, "Optimal Discrete-Time Kalman Consensus Filter," In the Proceedings of the AACC American Control Conference, Seattle, WA, May 2017.

105. A. Tyagi, S. Ayyalasomayajula, N. Nigam, C. Zhang, and I. Hwang, “Predicting Trajectories for Small Electric UASs for Safety Analyses,” AIAA Aviation Forum 2107-ATIO, Denver, CO, June 2017. 

106. J. Goppert, S. Yantek, and I. Hwang, “Invariant Kalman Filter Application to Optical Flow Based Visual Odometry for UAVs,” In the Proceedings of the 9th IEEE ICUFN2017: DroneCAN 2017, Milan, Italy, July 4-7, 2017

107. J.S. Nandiganahalli, C. Kwon and I. Hwang, “Prediction-based Adaptive Robust Control for a Class of Uncertain Time-delay Systems,” In the Proceedings of the 20th IFAC World Congress, Toulouse, France, July 2017.

108. B. Oh, K. Kim, H. Choi, and I. Hwang, “Optimal Evacuation Planning for Disaster Victims with Different Urgency Levels,” In the Proceedings of the 20th IFAC World Congress, Toulouse, France, July 2017.

109. S. Choi, A. Chavez, M. Torres, C. Kwon, and I. Hwang, “Trustworthy Design Architecture: Cyber-Physical System,” In the Proceedings of the 51th International Carnahan Conference on Security Technology (ICCST 2017), Madrid, Spain, October 2017.

110. O. Thapliyal, J.S. Nandiganahalli, and I. Hwang, "Optimal State Estimation in LTI Systems with Imperfect Observations," In the Proceedings of the 56th IEEE Conference on Decision and Control, Melbourne, Australia, December 2017 

111. C. Zhang and I. Hwang, “Multi-target Identity Tracking and Management Using Multiple Sensors,” AIAA SciTech 2018: AIAA Guidance, Navigation, and Control Conference, Kissimmee, FL, January 2018 

112. J. Lee, I. Hwang, and H. Shim, “UAS Surveillance in Low-altitude Airspace with Geofencing: Constrained Stochastic Linear Hybrid Systems Approach,” AIAA SciTech 2018: Intelligent Systems, Kissimmee, FL, January 2018 (Best Graduate Student Paper Award)

113. J.S. Nandiganahalli and I. Hwang, “Delay-tolerant Adaptive Robust Control for Unmanned Aerial System,” AIAA SciTech 2018: Intelligent Systems, Kissimmee, FL, January 2018 (Finalist for the Best Graduate Student Paper Award) 

114. J.S. Nandiganahalli, C. Kwon and I. Hwang, “Prediction-based Adaptive Robust Compensation for Motion Control of Time-delayed Uncertain Linear Motors,” In the Proceedings of the AACC American Control Conference, Milwaukee, WI, June 2018

115. K. Kim and I. Hwang, “Terminal Airspace Anomaly Detection Using Temporal Logic Learning,” In the Proceedings of the International Conference on Research in Air Transportation (ICRAT) 2018, Barcelona, Spain, June 2018

116. R. Deshmukh, K. Kim, and I. Hwang, “Anomaly Detection Using Temporal Logic Based Learning for Terminal Airspace Operations,” AIAA SciTech 2019: Intelligent Systems, San Diego, CA, January 2019

117. C. Zhang and I. Hwang, “Decentralized Multi-sensor Scheduling for Multi-target Identity Tracking and Management,” 2019 European Control Conference, Napoli, Italy, June 2019

118. R. Deshmukh, D. Sun, and I. Hwang, “Data-Driven Precursor Detection Algorithm for Terminal Airspace Operations,” ATM Seminar 2019, Vienna, Austria, June 2019, (Best Paper Award)

119. D. Kim and I. Hwang, “Multiple Model Gaussian Mixture PHD filter with Continuous- State-Dependent Transitions,” In the Proceedings of the 38th AIAA/IEEE Digital Avionics Systems Conference (DASC), San Diego, CA, September 8-12, 2019

120. D. Sun and I. Hwang, “Resilient Control Design for Hybrid Systems against Switching and Data Injection Attacks,” In the Proceedings of the 58th IEEE Conference on Decision and Control, Nice, France, December 11-13, 2019

121. S. Khan, R. Deshmuk and and I. Hwang, “Optimal Kalman Consensus Filter for Bidirected Weighted Graphs,” In the Proceedings of the 58th IEEE Conference on Decision and Control, Nice, France, December 11-13, 2019

122. V. Sivaramakrishnan, O. Thapliyal, A.P. Vinod, M. Oishi, and I. Hwang, “Predicting Mode Confusion Through Mixed Integer Linear Programming,” In the Proceedings of the 58th IEEE Conference on Decision and Control, Nice, France, December 11-13, 2019

123. C. Zhang and I. Hwang, “Constructing BADA-like Models of Small Electric UASs from Simulation and Flight Tests,” AIAA SciTech 2020: Modeling and Simulation Technologies, Orlando, FL, January 2020.

124. D. Kim and I. Hwang, “A Multi-Target Tracker based on Gaussian Mixture PHD Filter with Jump Markov System Models,” AIAA SciTech 2020: Intelligent Systems, Orlando, FL, January 2020.

125. S. Clarke and I. Hwang, “Deep Reinforcement Learning Control for Aerobatic Maneuvering of Agile Fixed-Wing Aircraft” AIAA SciTech 2020: Intelligent Systems, Orlando, FL, January 2020. 

126. B. Du, L. Yuan, D. Sun, and I. Hwang, “Distributed State Estimation for Stochastic Linear Hybrid Systems,” In the Proceedings of the 59th IEEE Conference on Decision and Control, Jeju Island, Korea, December 8-11, 2020

127. O. Thapliyal and I. Hwang, “Path Planning for a Network of Robots with Distributed Multi-Objective Linear Programming,” In the Proceedings of the AACC American Control Conference, New Orleans, LA, June 2021. accepted

128. A. Gupta, S. Shethia, W.-C. Hsu, and I. Hwang, “Empirical Analysis of Battery Performance with Ambient Temperature for Small Electric UASs,” AIAA Aviation Forum, Washington D.C., June 7-11, 2021., Submitted

129. Y-C. Sun and I. Hwang, “Gaussian Mixture Probability Hypothesis Density Filter with State-Dependent Probabilities,” 2021 European Control Conference, Rotterdam, Netherland, June 29- July 2, 2021., Submitted

130. O. Thapliyal and I. Hwang, “Learning based Cyberattack Design and Defense for Supervisory Control Systems,” 2021 European Control Conference, Rotterdam, Netherland, June 29- July 2, 2021., Submitted

131. D. Sun, I. Hwang and M. Corless, “Controlled Mode Distinguishability for Cybersecurity,” The 60th IEEE Conference on Decision and Control via LCSS, Austin, TX, December 13-15, 2021

132. S. Byeon, W. Jin, D. Sun, and I. Hwang, “Human-Automation Interaction for Assisting Novices to Emulate Experts by Inferring Task Objective Functions,” In the Proceedings of the 40th AIAA/IEEE Digital Avionics Systems Conference (DASC), San Antonio, TX, September 26-31, 2021 (selected to the top 10 finalists for the Student Research Competition)

133. C. Deng, K. Kim, and I. Hwang, “Trajectory Pattern Identification and Classification for Arrivals in Vectored Airspace,” In the Proceedings of the 40th AIAA/IEEE Digital Avionics Systems Conference (DASC), San Antonio, TX, September 26-31, 2021. (Best session Award)

134. S. Shethia, A. Gupta, and I. Hwang, “Distributed Fast-Tracking Alternating Direction Method of Multipliers (ADMM) Algorithm with Optimal Convergence Rate,” In the Proceedings of 2021 IEEE International Conference on Systems, Man, and Cybernetics (SMC), Melbourne, Australia, October 17-21, 2021

135. S. Byeon, D. Sun, and I. Hwang, “Skill-level-based Hybrid Shared Control for Human-Automation Systems,” In the Proceedings of 2021 IEEE International Conference on Systems, Man, and Cybernetics (SMC), Melbourne, Australia, October 17-21, 2021

136. A. Gupta, W.-C. Hsu, S. Shethia, and I. Hwang, “Empirical Analysis of UAS Performance under External Wind,” AIAA SciTech 2022: Flight Testing, San Diego, CA, January 2022

137. Z. Yang, J. Goppert, and I. Hwang, “Distributed Target Tracking Algorithm for Urban Counter-UAS Using a Camera Network,” AIAA SciTech 2022: Sensor Systems and Information Fusion, San Diego, CA, January 2022

138. S. Clarke and I. Hwang, “Attack-Resilient Distributed Optimization-based Control of Multi-Agent Systems with Dual Interaction Networks,” AIAA SciTech 2022: Intelligent Systems, San Diego, CA, January 2022

139. O. Award, M. Stoeckle and I. Hwang, “A GPS-Free Navigation System for Earth-Orbiting Small Satellites,” AAS Guidance, Navigation and Control Conference, Breckenridge, CO, February 3-9, 2022 (submitted)

140. S. Khan, I. Hwang and J. Goppert, “Robust State Estimation in the Presence of Stealthy Cyberattacks,” In the Proceedings of the AACC American Control Conference, Atlanta, GA, June 8-10, 2022 (invited)

141. M. Yuh, S. Byeon, N. Jain, and I. Hwang, “Evaluation of Cognitive State Feedback for Accelerating Human Learning,” In the Proceedings of the AACC American Control Conference, Atlanta, GA, June 8-10, 2022 (Experimental Demo Paper)

142. H. Choi and I. Hwang, “Toward Real-Time Stochastic Conformal Anomaly Detection in Terminal Airspace,” In the Proceedings of the International Conference on Research in Air Transportation (ICRAT) 2022, Tampa, FL, June 19-23, 2022

143. J. Choi, S. Byeon, and I. Hwang, “State Prediction of Human-in-the-Loop Multi-rotor System with Stochastic Human Behavior Model,” In the Proceedings of the 4th IFAC Workshop on Cyber-Physical & Human-Systems, (CPHS 2022), Houston, TX, December 1-2, 2022

144. M. Yuh, S. Byeon, I. Hwang, and N. Jain, “A Heuristic Strategy for Cognitive State-based Feedback Control to Accelerate Human Learning,” In the Proceedings of the 4th IFAC Workshop on Cyber-Physical & Human-Systems, (CPHS 2022), Houston, TX, December 1-2, 2022

145. S. Clarke and I. Hwang, “Model-Free Boundedly-Optimal Damage Recovery in Sublinear Time Iterations,” AIAA SciTech 2023: Intelligent Systems (Invited Session of Advances in Intelligent Fault Tolerant Control Applications), National Harbor, MD, January 23-27, 2023 (invited)

146. H. Park and I. Hwang, “Situational Anomaly Detection Using Multi-agent Trajectory Prediction for Terminal Airspace Operations,” AIAA SciTech 2023: Intelligent Systems, National Harbor, MD, January 23-27, 2023.

147. K. Anand, Z. Yang, J. Goppert, and I. Hwang, “An Open-Source Gazebo Plugin for GNSS Multipath Signal Emulation in Virtual Urban Canyons,” AIAA SciTech 2023: Software: Enabling Open Source and COTS, National Harbor, MD, January 23-27, 2023.

148. S. Byeon, D. Sun, and I. Hwang, “An Inverse Optimal Control Approach for Learning and Reproducing under Uncertainties,” In the Proceedings of the AACC American Control Conference via LCSS, San Diego, CA, May 31-June 2, 2023.

149. O. Thapliyal and I. Hwang, “Data-driven Cyberattack Synthesis against Network Control Systems,” In the Proceedings of the 22nd IFAC World Congress, Yokohama, Japan, July 9-14, 2023.

150. S. Khan and I. Hwang, “Information-weighted Consensus Filtering under Limited Communication,” In the Proceedings of the 22nd IFAC World Congress, Yokohama, Japan, July 9-14, 2023.

151. J. Choi, S. Byeon, and I. Hwang, “Data-driven Forward Stochastic Reachability Analysis for Human-in-the-Loop Systems,” In the Proceedings of the 62nd IEEE Conference on Decision and Control, Singapore, December 13-15, 2023.

152. C. Deng, H. Choi, H. Park, and I. Hwang, “Area Navigation Terminal Airspace Complexity Estimation for Arrivals,” ATM Seminar 2023.

153. H. Choi, H. Park, C. Deng, and I. Hwang, “Multi-agent Aircraft Estimated Time of Arrival Prediction in Terminal Airspace,” In the Proceedings of the 42nd AIAA/IEEE Digital Avionics Systems Conference (DASC), Barcelona, Spain, October 1-5, 2023 (Best of Session Award)

154. S. Hwang, M. Cho,  S. Kim, and I. Hwang, “An LMI-based Risk Assessment of Leader-Follower Multi-Agent System under Stealthy Cyberattacks,” In the Proceedings of the 62nd IEEE Conference on Decision and Control with LCSS option, Singapore, December 13-15, 2023. 

155. S. Khan, K. Pant, and I. Hwang, “Synthesis of Robust State Estimation Algorithms under Unknown Sensor Inputs,” In the Proceedings of the 62nd IEEE Conference on Decision and Control with LCSS option, Singapore, December 13-15, 2023. 

156. J. Choi, S. Byeon, and I. Hwang, “Data-driven Forward Stochastic Reachability Analysis for Human-in-the-Loop Systems,” In the Proceedings of the 62nd IEEE Conference on Decision and Control, Singapore, December 13-15, 2023. 

157. J. Kim, J. Goppert, and I. Hwang, “Application of Time-Domain RRT to Surveillance in Urban Canyons,” AIAA SciTech 2024: Intelligent Systems, Orlando, FL, January 8-12, 2024 

158. H. Choi and I. Hwang, “Consensus-based Approach to Arrival Traffic Management for Trajectory-Based Operation,” AIAA SciTech 2024: Intelligent Systems, Orlando, FL, January 8-12, 2024 

159. J. Choi, H. Park, and I. Hwang, “Bootstrapped Gaussian Mixture Model-Based Data-Driven Forward Stochastic Reachability Analysis,” In the Proceedings of the AACC American Control Conference via LCSS, Toronto, Canada, July 8-12, 2024, (accepted) 

160. M. Cho, S. Hwang, and I. Hwang, “Risk Assessment of Multi-Agent System Under Denial-of Service Cyberattacks Using Reachable Set Synthesis,” In the Proceedings of the AACC American Control Conference, Canada, July 8-12, 2024, (accepted) 

161. S. Clarke, O. Thapliyal, and I. Hwang, “Direct Data-Driven Discrete-time Bilinear Biquadratic Regulator,” 6th Annual Learning for Dynamics & Control Conference, University of Oxford, UK, July 15-17, 2024 (submitted) 

162. O. Thapliyal, S. Clarke, and I. Hwang, “An Algorithm for Distributed Computation of Reachable Sets for Multi-Agent Systems,” In the Proceedings of the 32nd Mediterranean Conference on Control and Automation, MED 2024, Crete, Greece, June 11-14, 2024 (submitted) 

163. C.-H. Yang, J. Choi, S. Anandavel, and I. Hwang, “Reachability Analysis of Human-in-the-Loop Systems Using Gaussian Mixture Model with Side Information,” 2024 IEEE/ASME International Conference on Advanced Intelligent Mechatronics (AIM) (AIM 2024), Boston, MA, July 15-18, 2024 (submitted) 

164. S. Hwang, M. Cho, and I. Hwang, “An Observer-based Resilient Control Strategy for Leader-Follower Multi-Agent Systems under False-Data-Injection Attacks,” In the Proceedings of the 63rd IEEE Conference on Decision and Control, Milan, Italy, December 16-19, 2024 (submitted) 

165. S. Byeon, D. Tian, J. Ayoub, M. Song, E. Pari, and I. Hwang, “Optimal Function and Attention Allocation for Human-AI Collaboration using Computational Cognition-Work Model,” In the Proceedings of the 63rd IEEE Conference on Decision and Control, Milan, Italy December 16-19, 2024 (submitted) 

166. H. Park and I. Hwang, “Observability of Koopman Representations and Output Canonical Extended Dynamic Mode Decomposition,” In the Proceedings of the 63rd IEEE Conference on Decision and Control, Milan, Italy, December 16-19, 2024 (submitted) 

167. J. Choi, M. Cho, H. Park, V. Vijay, and I. Hwang, “On the Controllability Preservation of Koopman Bilinear Surrogate Model,” In the Proceedings of the 63rd IEEE Conference on Decision and Control, Milan, Italy, December 16-19, 2024 (submitted)

Symposiums and Workshops

1. J.L. Yepes, I. Hwang, and M. Rotea, “Pilot's Intent Inference and Aircraft Trajectory Prediction with Applications to Air Traffic Control,” Proceedings of the UKC Aerospace Science and Technology Symposium, Irvine, CA, August 2005 

2. I. Hwang, “Hybrid Systems Approach for Complex Networked Systems with Application to Air Traffic Control,” AFOSR System-of-Systems Workshop, Indianapolis, IN, May 2006 

3. I. Hwang and J. Goppert, “Information Inference and Control of Complex Networked Systems: Application to Aerospace Systems,” ATAIN Conference, Taylor University, IN, September 2007 

4. J. Goppert, A. Shull and I. Hwang, “Unmanned Aerial Systems Cyberattack Identification and Analysis”, The 13th Annual CERIAS Information Security Symposium, Purdue University, April 3 – 4, 2012 

5. C. Kwon and I. Hwang, “Security Analysis for Cyber-Physical Systems against Stealthy Cyber Attacks,” The 14th Annual CERIAS Information Security Symposium, Purdue University, April 3 – 4, 2013. 

6. J Goppert, A. Shull, N. Sathyamoorthy, and I Hwang, “Security Analysis for Cyber-Physical Systems against Stealthy Cyber Attacks,” The 14th Annual CERIAS Information Security Symposium, Purdue University, April 3 – 4, 2013 

7. I. Hwang, Open Source Software/Hardware based UAS Platforms and algorithms Development, International Workshop on Applications of Unmanned Aerial Systems in Agriculture, Environment, and Defense, San Carlos, Brazil, April 8-9, 2013. 

8. C. Kwon and I. Hwang, “Robust Hybrid Controller Design: Cyber Attack Mitigation Strategy for Cyber-Physical Systems,” The 15th Annual CERIAS Information Security Symposium, Purdue University, April 25–26, 2014. 

9. S. Yantek, J Goppert, N. Sathyamoorthy, and I Hwang, “Analysis of Cyber Attacks on UASs in Simulation,” The 15th Annual CERIAS Information Security Symposium, Purdue University, April 25 – 26, 2014. 

10. S. Shin and I. Hwang, “Cockpit Audio Analysis for Rotorcraft Safety”, 2015 HAI Heli-Expo, Orlando, FL, March 3-5, 2015 

11. J. Lorenzetti, J Goppert, and I Hwang, “Utilizing Open Source Tools for Dynamics and Control Analysis of Nonlinear Systems,” The Undergraduate Research Symposium, Purdue University, April 14, 2015 (Third Place in College of Engineering) 

12. A. Vaidya, “Cockpit Audio Analysis for Rotorcraft Safety”, (poster) 2016 HAI Heli-Expo, Louisville, KY, February 29 – March 3, 2016 

13. S. Shin and I. Hwang, “Analysis of Cockpit Video and Voice Recordings for Rotorcraft FDM,” PEGASAS 2016 Annual Meeting, June 7, 2016 

14. C. Zhang and I. Hwang, “Cockpit Audio Analysis for Rotorcraft Safety”, 2017 HAI Heli-Expo, Dallas, TX, March 7-9, 2017 

15. L.-Y. Lin, J. Goppert, and I. Hwang, “Application of Log-Linear Dynamic Inversion Control to a Multi-rotor”, Workshop on Geometric Representations: The Roles of Modern Screw Theory, Lie Algebra, and Geometric Algebra in Robotics, IEEE ICRA 2023, ExCeL London, UK, June 2, 2023 

16. K. Pant, L.-Y. Lin, J. Goppert, and I. Hwang, “Towards Robust State Estimation in Matrix Lie Groups”, Workshop on Geometric Representations: The Roles of Modern Screw Theory, Lie Algebra, and Geometric Algebra in Robotics, IEEE ICRA 2023, ExCeL London, UK, June 2, 2023 

17. J. Li, H. Park, W. Hao, L. Xin, J. Chavez-Galaviz, A. Chaudhary, M. Bloss, C. Vo, K. Pattison, D. Upadhyay, S. Sundaram, S. Mou, I. Hwang, N. Mahmoudian, “C3DKL: Cascade Control with Change Point Detection and Deep Koopman Learning for Time-Varying Systems,” 8th Annual Workshop on Naval Applications of Machine Learning, San Diego, CA, March 11-14, 2024

Technical Reports

1. K.D. Lee, S.W. Lee, B. Wie, C.H. Yeom, and I. Hwang, “Aerospace Research and Development Trend Study,” Technical Report as a part of the Project: Overseas Science and Technology Policy, Organization, and Trends, Korea Federation of Science and Technology, December 2006

2. I. Hwang and C. Tomlin, "Protocol-based Conflict Resolution for Air Traffic Control," Technical Report, SUDAAR-762, Department of Aeronautics and Astronautics, Stanford University, July 2002. 

Invited Presentations (excluding conference papers)

2019

• I. Hwang, High Assurance Conrol for Cyber-Physical Systems: Secure Control Analysis and Design, Beijing University of Technology, Beijing China, May 2019

• I. Hwang, Space Situational Awareness: Manuevering Spacecraft Tracking via State-Dependent Adaptive Estimation, Beijing University of Technology, Beijing China, May 2019

• I. Hwang, High Assurance Conrol for Cyber-Physical Systems: Secure Control Analysis and Design, Harbin Institute of Technology, Harbin China, May 2019

• II. Hwang, Space Situational Awareness: Manuevering Spacecraft Tracking via State-Dependent Adaptive Estimation, Harbin Institute of Technology, Harbin China, May 2019

2018

• I. Hwang, The 4th Industrial Revolution: Overview of Drone Research and Development in the U.S., Future Korea Symposium, Kookmin University, June 27, 2018

• I. Hwang, UAS Traffic Management: Surveillance for Small UAS with Geofense, Seoul National University, Korea, July 2018

• I. Hwang, UAS Traffic Management: Surveillance for Small UAS with Geofense, Pusan National University, Korea, July 2018

• I. Hwang, Cyber-Physical System (CPS) Vetting: Intelligent & High Assurance Autonomy for CPS, Army Research Laboratory (ARL), July 2018

• I. Hwang, Secure & High Assurance Autonomy for Cyber-Physical System (CPSs): Application to Aerospace Systems, Raytheon, October 2018

• I. Hwang, Secure & High Assurance Autonomy for Cyber-Physical System (CPS), Idaho National Laboratory, October 2018

2017

• I. Hwang, Steps Towards UTM: Concepts and Technologies, Drone Symposium, Seoul, Korea, March 2017.

• I. Hwang, Intelligent & High Assurance Autonomy for Cyber-Physical Systems, Ford Motor Co, Purdue, March 2017

• I. Hwang, Intelligent & High Assurance Autonomy for Cyber-Physical Systems, Boeing, Purdue, May 2017

• I. Hwang, UAS traffic Management: Surveillance for Small UAS with Geofense, Department of Aerospace Engineering, KAIST, Korea, June 2017.

• I. Hwang, UAS traffic Management: Surveillance for Small UAS with Geofense, Hanseo University, Korea, June 2017.

• I. Hwang, UAS traffic Management: Surveillance for Small UAS with Geofense, Department of Aerospace Engineering, Chungnam National University, Korea, June 2017.

• I. Hwang, Secure & High Assurance Autonomy for Cyber-Physical Systems (CPSs): Applications to Aerospace Systems, Lockheed Martin, Purdue, October 2017

2016

• I. Hwang, Secure & High Assurance Autonomy for Cyber-Physical Systems (CPSs): Applications to Aerospace Systems, Sypris and Analogue Devices, Inc., Purdue, June 2016.

• I. Hwang, Intelligent & High Assurance Autonomy for Cyber-Physical Systems, Rockwell Collins, Purdue, September 2016

• I. Hwang, Secure & High Assurance Autonomy for Cyber-Physical Systems (CPSs): Applications to Aerospace Systems, Sandia National Laboratory, Purdue, October 2016

2015

• I. Hwang, Cyber Secure and High Assurance Autonomous Vehicle Control Design, Zenith Electronics LLC, Lincolnshire, IL, March 2015.

• I. Hwang, Cyber Secure and High Assurance Autonomous Vehicle Control Design, General Motors, Purdue, June 2015

2014

• I. Hwang, Cyber-secure Control Analysis and Design for Cyber-Physical Systems: Applications to Unmanned Aircraft Systems (UAS), Department of Aerospace Engineering, KAIST, Korea, July 2014.

• I. Hwang, Cyber-secure Control Analysis and Design for Cyber-Physical Systems: Applications to Unmanned Aircraft Systems (UAS), Department of Aerospace Engineering, Pusan National University, Korea, July 2014.

• I. Hwang, Cyber-secure Control Analysis and Design for Cyber-Physical Systems: Applications to Unmanned Aircraft Systems (UAS), Department of Aerospace Engineering, Seoul National University, Korea, July 2014.

2013

• I. Hwang, Fault Detection and Isolation for Cyber-Physical Systems: Hybrid Systems Approach to Safety Enhancement of Aerospace Systems, Department of Electrical and Computer Engineering, University of New Mexico, Albuquerque, NM, November 2013.

2012

• I. Hwang, Aircraft Conflict Resolution: A Stochastic Optimal Control Approach, Workshop for Aerospace Decision and Control, Georgia Tech, Atlanta, GA, June 2012.

• I. Hwang, Improving Aerospace Systems Safety through Fault Detection and Isolation for Stochastic Linear Hybrid Systems, Pusan National University, Korea, July 2012.

• I. Hwang, Safety of Aerospace Systems: Hybrid Fault Detection and Isolation for Cyber-Physical Systems Approach, Chungnam National University, Korea, July 2012.

• I. Hwang, Safety of Aerospace Systems: Hybrid Fault Detection and Isolation for Cyber-Physical Systems Approach, KAIST, Korea, July 2012.

2011

• I. Hwang, Advancing Air Transportation: Next Generation Air Transportation System (Next Gen), President’s Council Back to Class, Purdue University, September 2011.

• I. Hwang, Fault Detection, and Isolation for Stochastic Linear Hybrid Systems with and its Applications to Aerospace Systems,  Dept. of Aerospace Engineering, University of Illinois, Urbana-Champaign, IL, October 2011.

2010

• I. Hwang, Fault Detection, and Isolation Algorithms for Stochastic Linear Hybrid Systems with Unknown Fault Inputs,  Dept. of Aerospace Engineering, Chungnam National University, Korea, June 2010.

• I. Hwang, Robust Estimation and Fault Detection, and Isolation Algorithms for Stochastic Linear Hybrid Systems with Unknown Fault Inputs,  Dept. of Aerospace Engineering, Seoul National University, Korea, June 2010.

2009

• I. Hwang, A Survey of Fault Detection, Isolation, and Reconfiguration (FDIR) Methods, NASA Langley, November 2009.

2008

• I. Hwang, Decision Supporting Tools for the Next Generation Air Transportation System (NextGen), Korea Aerospace Research Instutite, Korea, July 2008.

• I. Hwang, Decision Supporting Tools for the Next Generation Air Transportation System (NextGen), Dept. of Aerospace Engineering, Chungnam National University, Korea, July 2008.

• I. Hwang, Decision Supporting Tools for the Next Generation Air Transportation System (NextGen), Dept. of Aerospace Engineering, KAIST, Korea, July 2008.

• I. Hwang, Decision Supporting Tools for the Next Generation Air Transportation System (NextGen), School of Mechanical and Aerospace Engineering, 3Seoul National University, Korea, July 2008.

2007

• I. Hwang, Hybrid Estimation and Intent Based Probabilistic Conflict Detection for the Next Generation Air  Transportation System (NextGen),  Dept. of Aerospace & Mechanical Engineering, University of Notre Dame, Notre Dame, IN, November,  2007.

• I. Hwang and J Goppert, Information Inference and Control of Complex Networked Systems: Application to Aerospace Systems, ATAIN Conference, September, 2007.

• I. Hwang, Hybrid Estimation: Application to Air Traffic Control, Dept. of Aeronautics and Astronautics, Ohio State University,  Columbus, OH, May, 2007.

2006

• I. Hwang, Hybrid Systems Approach for Complex Networked Systems, Raytheon, Fort Wayne, IN, June, 2006.

• I. Hwang, Hybrid Systems Approach for Complex Networked Systems with Application to Air Traffic Control, AFOSR System-of-Systems Workshop, Indianapolis, IN, May, 2006.

• I. Hwang, Pilot's Intent Inference and Aircraft Trajectory Prediction with Applications to Air Traffic Control, Coodinated Science Laboratory, University of Illinois at Urbana-Champaign, IL, April 2006.

2005

• I. Hwang, Control in Information Rich World: Application to Air Traffic Control, Korea Aerospace Research Institute (KARI), Taejon, Korea, August 2005.

• I. Hwang, Control in Information Rich World: Application to Air Traffic Control, Division of Aerospace Engineering in the School of Mechanical Engineering, KAIST, Taejon, Korea, August 2005.

• I. Hwang, Control in Information Rich World: Application to Air Traffic Control, School of Mechanical and Aerospace Engineering, Seoul National University, Seoul, Korea, July 2005.

2004

• I. Hwang, Air Traffic Surveillance and Control using Hybrid Estimation and Protocol-Based Conflict Resolution, School of Aeronautics and Astronautics, Purdue University, April 2004.

• H. Balakrishnan, I. Hwang, and C. Tomlin, Information Inference for Autonomous Stochastic Linear Hybrid Systems, NASA Joint University Program, NASA Ames, CA, January 2004. 

2003

• H. Balakrishnan, I. Hwang, and C. Tomlin, Inference Methods for Autonomous Stochastic Linear Hybrid Systems, ETHZ/Stanford/UBC Hybrid Systems Seminar, Stanford, CA, December 2003.

• I. Hwang, H. Balakrishnan, K. Roy, and C. Tomlin, Multiple-Target Tracking and Identity Management for Air Traffic Control, NASA Joint University Program, UCLA, Los Angeles, CA, September 2003.

• H. Balakrishnan, I. Hwang, and C. Tomlin, Inference Methods for Stochastic Hybrid Systems, MURI-ONR Meeting, Stanford, CA, July 2003.

• I. Hwang, H. Balakrishnan, and C. Tomlin, Hybrid Estimation Algorithm and Related Work, MURI Meeting, Stanford, CA, June 2003.

• I. Hwang, H. Balakrishnan, J. Kim, and C. Tomlin, Flight-Mode-Based Conflict Detection using a Residual-Mean Interacting Multiple Model, DARPA Software Enabled Control Meeting, Stanford, CA, April 2003.

• I. Hwang, J. Hwang, and C. Tomlin, Flight-Mode-Based Conflict Detection using a Residual-Mean Interacting Multiple Model, NASA Joint University Program, Stanford, CA, March 2003.

• I. Hwang and C. Tomlin, Protocol-Based Conflict Resolution for Air Traffic Control, Seminar at Seagull Technology Inc., Cupertino, CA, April 2003.

Thesis

1. Shiraz Khan, “Robustness, Resilience, and Scalability of State Estimation Algorithms”, Ph.D. Thesis, Purdue University, December 2023.

2. Kartik Anand Pant, “Enhancing Cybersecurity of Unmanned Aerial Systems in Urban Environments,” M.S. Thesis, Purdue University, August 2023.

3. Dawei Sun, “Towards Hybrid System Approaches for Cyber-Physical System Security and Resiliency,” Ph.D. Thesis, Purdue University, December 2022.

4. Shanelle G. Clarke, “Towards Provable Guarantees for Learning-based Control Paradigms,” Ph.D. Thesis, Purdue University, December 2022. 

5. Marvin Jesse, “A Novel Approach to Set-membership Observer for Systems with Unknown Exogenous Inputs,” M.S. Thesis, Purdue University, December 2022.

6. Zanpeng Yang, “Unmanned Aerial System Tracking in Urban Canyon Environments Using External Vision Sensors”, M.S. Thesis, Purdue University, August 2022.

7. Chuhao Deng, “Trajectory Pattern Identification and Classification for Arrivals in Vectored Airspace”, M.S. Thesis, Purdue University, August 2021.

8. Kwangyeon Kim, “Data-driven Decision Supporting Tools for Aircraft Conflict Resolution and Conformance Monitoring,” Ph.D. Thesis, Purdue University, August 2021. 

9. Hansoo Kim, “Hybrid Data-driven and Physics-based Flight Trajectory Prediction in Terminal Airspace”, M.S. Thesis, Purdue University, May 2021.

10. Wei-Cheng Hsu, “Lightweight Cyberattack Intrusion Detection System for Unmanned Aerial Vehicles using Recurrent Neural Networks”, M.S. Thesis, Purdue University, May 2021.

11. Shreyansh Shethia, “Tracking ADMM for Fast Distributed Optimization and Convergence under Time-Varying Topology”, M.S. Thesis, Purdue University, May 2021.

12. Sonali Sinha Roy, “A Consensus-based Distributed Algorithm for Reconfiguration of Spacecraft Formations,” M.S. Thesis, Purdue University, December 2020. (co-advised with Martin Corless)

13. Raj Deshmukh, “Data-driven Anomaly and Precursor Detection for Metroplex Airspace Operations,” Ph.D. Thesis, Purdue University, May 2020.

14. Shiraz Khan, “Optimal Information-Weighted Kalman Consensus Filter,” M.S. Thesis, Purdue University, May 2020.

15. Chiyu Zhang, “Multi-target Tracking and Identity Management using Multiple Mobile Sensors”, Ph.D. Thesis, Purdue University, May 2020.

16. Jooyoung Lee, “Stochastic Hybrid Systems Modeling and Estimation with Applications to Air Traffic Control,” Ph.D. Thesis, Purdue University, August 2019.

17. Akshita Gupta, “Safety Verification Model-Based Reinforcement Learning Controllers Using Reachability Analysis,” M.S. Thesis, Purdue University, July 2019

18. Dohyeung Kim, “Multi-Target Tracking Algorithms for Cluttered Environments,” Ph.D. Thesis, Purdue University, December 2019.

19. James Goppert, “Security and Verification of Unmanned Vehicles,” Ph.D. Thesis, Purdue University, December 2018

20. J.S. Nandiganahalli, “Towards Predictor Adaptive Robust Control and Inference of Cyber-Physical Systems with Applications to Aerospace Systems,” Ph.D. Thesis, Purdue University, July 2018

21. Byunghoon Oh, “Cooperative Multiple Agents Based Algorithm for Optimal Evacuation Planning under Time-varying Uncertainty,” Ph.D. Thesis, Purdue University, July 2018 

22. Dawei Sun, “Hybrid Flocking Control Algorithm with Application to Multiple Fixed-wing Aircraft Swarming,” M.S. Thesis, Purdue University, May 2018

23. Omanshu Thapliyal, “Kalman Filtering for LTI Systems with State Dependent Packet Losses,” M.S. Thesis, Purdue University, December 2017 

24. Raj Deshmukh, “Development of Optimal Kalman Consensus Filter and Its Applications to Distributed Hybrid Sate Estimation”, M.S. Thesis, Purdue University, May 2017

25. Sang-Hyun Shin, “Flight State Information Inference with Application to Helicopter Cockpit Video Data Analysis Using Data Mining Techniques”, Ph.D. Thesis, Purdue University, May 2017

26. Cheolhyeon Kwon, “High Assurance Control of Cyber-Physical Systems with Application to Unmanned Aircraft Systems”, Ph.D. Thesis, Purdue University, May 2017

27. Sangjin Lee, “Information Inference for Cyber-Physical Systems with Application to Aviation Safety and Space Situational Awareness, Ph.D. Thesis, Purdue University, August 2016 

28. Abhishek Vaidya, “Unsupervised Learning Framework for Large-Scale Flight Data Analysis of Cockpit Human-Machine Interaction Issues,” M.S. Thesis, Purdue University, May 2016 

29. Hao Lyu, “Flight Deck Human-Automation Mode Confusion Detection Using a Generalized Fuzzy Hidden Markov Model,” M.S. Thesis, Purdue University, May 2016

30. Arthur Lace, “Dynamic Sensor Tasking and IMM EKF Estimation for Tracking Impulsively Maneuvering Satellites,” M.S. Thesis, Purdue University, May 2016 

31. David Kun, “Linear Matrix Inequality-based Nonlinear Adaptive Robust Control with Application to Unmanned Aircraft Systems,” M.S. Thesis, Purdue University, May 2015

32. Sangjun Lee, “Real-time RSS-based Indoor Navigation for Autonomous UAV Flight,” M.S. Thesis, Purdue University, May 2015

33. Mark Kane, “Joint Architecture for Reusable Vehicle-Integrated Software (J.A.R.V.I.S.),” M.S. Thesis, Purdue University, December 2014

34. Jian Wei, “Dynamic Airspace Configuration Algorithms for Next Generation Air Transportation System”, Ph.D. Thesis, Purdue University, May 2014.

35. Cheolhyeon Kwon, “Cyber Attack Analysis on Cyber-Physical Systems: Detectability, Severity, and Attenuation Strategy,” M.S. Thesis, Purdue University, August, 2013.

36. Sang-Hyun Shin, “Diagnostic Throughput Factor Analysis for En-route Airspace and Optimal Aircraft Trajectory Generation Based on Capacity Prediction and Controller Workload,” M.S. Thesis, Purdue University, August, 2013.

37. Andrew Shull, “Analysis of Cyberattacks on Unmanned Aerial Systems,” M.S. Thesis, Purdue University, May 2013.

38. Vince Sciandra, “Development and Benefit Analysis of A Sector Design Algorithm for Terminal Dynamic Airspace Configuration,” M.S. Thesis, Purdue University, May 2013.

39. W. Liu, "State Estimation and Optimal Control of Stochastic Hybrid Systems: Theory and Applications,” Ph.D. Thesis, Purdue University, December 2012.

40. Rosemary Huang, “Guidance of Low-Thrust Spacecraft,” Ph.D. Thesis, Purdue University, December 2012.

41. C. Sureshkumar, “Throughput Analysis for national Airspace System,” M.S. Thesis, Purdue University, December 2012.

42. G. Mann, “Aircraft Taxiway Conformance Monitoring with Constrained Stochastic Linear Hybrid Systems,” M.S. Thesis, Purdue University, August 2011.

43. J. Goppert, “An Adaptable, Low Cost Test-Bed for Unmanned Vehicle Systems Research,” M.S. Thesis, Purdue University, May 2011.

44. M. Liang, “ADS-B and Multilateration Sensor Fusion Algorithm for Air Traffic Control,” M.S. Thesis, Purdue University, May 2011.

45. A. Kim, “Graph Based Algorithms for Swarm Intelligence with Applications to MAVs,” M.S. Thesis, Purdue University, May 2011.

46. M. Savai, “A Graph-Based Algorithm for Adaptable Dynamic Airspace Configuration for NEXTGEN,” M.S. Thesis, Purdue University, December 2010.

47. B. Wampler, “Vision Enhanced Navigation for Unmanned Systems,” M.S. Thesis, Purdue University, December 2010

48. J. Li, “A New Numerical Method for Optimal Control and Application to the National Airspace System,” Ph.D. Thesis, Purdue University, December 2009

49. A. Aligawesa, “The Detection and Localization of Traffic Congestion for Highway Traffic Systems using Hybrid Estimation Techniques,” M.S. Thesis, Purdue University, August 2009

50. C.-E. Seah, “Stochastic Linear Hybrid Systems: Modeling, Estimation, and Application,” Ph.D. Thesis, Purdue University, May 2009

51. P. Kotecha, “Tube Network and Dynamic Sectorization of Airspace for Next Generation Air Transportation System (NextGen),” M.S. Thesis, Purdue University, May 2009.

52. J. Hahn, “A Rule-based Conflict Resolution Algorithm for the Next generation Air Transportation System (NextGen),” M.S. Thesis, Purdue University, May 2008.

53. J. L. Yepes, “Pilot’s Intent Inference and Aircraft Trajectory Prediction with Applications to Air Traffic Control,” M.S. Thesis, Purdue University, August 2005.

My Thesis

• I. Hwang and C. Tomlin, Air Traffic Surveillance and Control using Hybrid Estimation and Protocol-Based Conflict Resolution, Ph.D. Thesis, Stanford University, December 2003 

• I. Hwang and M.J. Tahk, A Study on the Attitude Control of a Flexible Satellite, M.S. Thesis, KAIST, Korea, Feburary 1994