• R. Lee and L. Shen, System identification of a Cessna 182 model UAV, 2007.
    [Bibtex]
    @Unpublished{Lee2007,
    author = {Ritchie Lee and Lu Shen},
    title = {System Identification of a {C}essna 182 Model {UAV}},
    organization = {{S}tanford {U}niversity CS229},
    year = {2007}
    }
  • R. Lee and C. Ippolito, “A perception and mapping approach for plume detection in payload directed flight,” in Aiaa [email protected] conference, 2009.
    [Bibtex]
    @InProceedings{Lee2009,
    author = {Lee, Ritchie and Ippolito, Corey},
    title = {A Perception and Mapping Approach for Plume Detection in Payload Directed Flight},
    booktitle = aiaa_info,
    organization = {AIAA},
    year = {2009},
    month = {April}
    }
  • R. Lee, C. Ippolito, Y. Yeh, J. Spritzer, and G. Phelps, “Payload-directed control of geophysical magnetic surveys,” in Aiaa [email protected] conference, 2010.
    [Bibtex]
    @InProceedings{Lee2010a,
    Title = {Payload-Directed Control of Geophysical Magnetic Surveys},
    Author = {Lee, Ritchie and Ippolito, Corey and Yeh, Yoo-Hsiu and Spritzer, John and Phelps, Geoffrey},
    Booktitle = aiaa_info,
    organization = {AIAA},
    Year = {2010},
    Month = {April}
    }
  • R. Lee and D. H. Wolpert, “Game theoretic modeling of human behavior in mid-air encounters,” in NIPS workshop on decision making with multiple imperfect decision makers, 2010.
    [Bibtex]
    @InProceedings{Lee2010b,
    Title = {Game Theoretic Modeling of Human Behavior in Mid-Air Encounters},
    Author = {Lee, Ritchie and Wolpert, David H},
    Booktitle = {{NIPS} Workshop on Decision Making with Multiple Imperfect Decision Makers},
    Year = {2010}
    }
  • J. Dolan, R. Lee, Y. Yeh, C. Yeh, D. Y. Nguyen, S. Ben-Menahem, and A. K. Ishihara, “Neural network estimation of photovoltaic I–V curves under partially shaded conditions,” in International joint conference on neural networks (ijcnn), 2011, p. 1358–1365.
    [Bibtex]
    @InProceedings{Dolan2011,
    author = {Dolan, Jacques and Lee, Ritchie and Yeh, Yoo-Hsiu and Yeh, Chiping and Nguyen, Daniel Y and Ben-Menahem, Shahar and Ishihara, Abraham K},
    title = {Neural Network Estimation of Photovoltaic {I}--{V} Curves Under Partially Shaded Conditions},
    booktitle = ijcnn,
    year = {2011},
    pages = {1358--1365},
    organization = {IEEE}
    }
  • R. Lee, S. Backhaus, J. Bono, D. H. Wolpert, R. Bent, and B. Tracey, “Modeling humans as reinforcement learners: how to predict human behavior in multi-stage games,” in NIPS workshop on decision making with multiple imperfect decision makers, 2011.
    [Bibtex]
    @InProceedings{Lee2011,
    author = {Lee, Ritchie and Backhaus, Scott and Bono, James and Wolpert, David H. and Bent, Russell and Tracey, Brendan},
    title = {Modeling Humans as Reinforcement Learners: How to Predict Human Behavior in Multi-Stage Games},
    booktitle = {{NIPS} Workshop on Decision Making with Multiple Imperfect Decision Makers},
    year = {2011}
    }
  • R. Lee and D. H. Wolpert, “Game theoretic modeling of pilot behavior during mid-air encounters,” in Decision making with imperfect decision makers, Springer, 2012, vol. 28, pp. 75-111.
    [Bibtex]
    @InCollection{Lee2012,
    author = {Lee, Ritchie and Wolpert, David H.},
    title = {Game Theoretic Modeling of Pilot Behavior During Mid-Air Encounters},
    booktitle = {Decision Making with Imperfect Decision Makers},
    publisher = {Springer},
    year = {2012},
    volume = {28},
    series = {Intelligent Systems Reference Library},
    chapter = {4},
    pages = {75-111}
    }
  • E. Denney, C. Ippolito, R. Lee, and G. Pai, “An integrated safety and systems engineering methodology for small unmanned aircraft systems,” in Aiaa [email protected] conference, 2012.
    [Bibtex]
    @InProceedings{Denney2012,
    Title = {An Integrated Safety and Systems Engineering Methodology for Small Unmanned Aircraft Systems},
    Author = {Ewen Denney and Corey Ippolito and Ritchie Lee and Ganesh Pai},
    Booktitle = aiaa_info,
    Organization = {AIAA},
    Year = {2012}
    }
  • E. J. Schlicht, R. Lee, D. H. Wolpert, M. J. Kochenderfer, and B. Tracey, “Predicting the behavior of interacting humans by fusing data from multiple sources,” in Conference on uncertainty in artificial intelligence (uai), 2012.
    [Bibtex]
    @InProceedings{Schlicht2012,
    Title = {Predicting the Behavior of Interacting Humans by Fusing Data from Multiple Sources},
    Author = {Erik J. Schlicht and Ritchie Lee and David H. Wolpert and Mykel J. Kochenderfer and Brendan Tracey},
    Booktitle = uai,
    Organization = {AUAI},
    Year = {2012}
    }
  • G. Yan, R. Lee, A. Kent, and D. H. Wolpert, “Towards a Bayesian network game framework for evaluating DDoS attacks and defense,” in Conference on computer and communications security (ccs), 2012, p. 553–566.
    [Bibtex]
    @InProceedings{Yan2012,
    Title = {Towards a {B}ayesian Network Game Framework for Evaluating {DDoS} Attacks and Defense},
    Author = {Yan, Guanhua and Lee, Ritchie and Kent, Alex and Wolpert, David H.},
    Booktitle = acmccs,
    Year = {2012},
    Organization = {ACM},
    Pages = {553--566}
    }
  • Y. Yildiz, R. Lee, and G. Brat, “Using game theoretic models to predict pilot behavior in NextGen merging and landing scenario,” in Aiaa scitech, modeling and simulation technologies conference (mst), 2012.
    [Bibtex]
    @InProceedings{Yildiz2012,
    Title = {Using Game Theoretic Models to Predict Pilot Behavior in {N}ext{G}en Merging and Landing Scenario},
    Author = {Yildiz, Yildiray and Lee, Ritchie and Brat, Guillaume},
    Booktitle = aiaa_mst,
    Organization = {AIAA},
    Year = {2012}
    }
  • R. Lee, D. H. Wolpert, J. Bono, S. Backhaus, R. Bent, and B. Tracey, “Counter-factual reinforcement learning: how to model decision-makers that anticipate the future,” in Decision making and imperfection, Springer, 2013, vol. 474, pp. 101-128.
    [Bibtex]
    @InCollection{Lee2013,
    author = {Lee, Ritchie and Wolpert, David H. and Bono, James and Backhaus, Scott and Bent, Russell and Tracey, Brendan},
    title = {Counter-Factual Reinforcement Learning: How to Model Decision-Makers That Anticipate the Future},
    booktitle = {Decision Making and Imperfection},
    publisher = {Springer},
    year = {2013},
    volume = {474},
    series = {Studies in Computational Intelligence},
    chapter = {4},
    pages = {101-128}
    }
  • S. Backhaus, R. Bent, J. Bono, R. Lee, B. Tracey, D. H. Wolpert, D. Xie, and Y. Yildiz, “Cyber-physical security: a game theory model of humans interacting over control systems,” Ieee transactions on smart grid, vol. 4, iss. 4, p. 2320–2327, 2013.
    [Bibtex]
    @Article{Backhaus2013,
    author = {Backhaus, Scott and Bent, Russell and Bono, James and Lee, Ritchie and Tracey, Brendan and Wolpert, David H. and Xie, Dongping and Yildiz, Yildiray},
    title = {Cyber-Physical Security: A Game Theory Model of Humans Interacting Over Control Systems},
    journal = ieeesg,
    year = {2013},
    volume = {4},
    number = {4},
    pages = {2320--2327},
    publisher = {IEEE}
    }
  • R. Lee and M. Rajabi, Assessing NuPIC and CLA in a machine learning context using NASA aviation datasets, 2014.
    [Bibtex]
    @Unpublished{Lee2014,
    author = {Ritchie Lee and Mariam Rajabi},
    title = {Assessing {NuPIC} and {CLA} in a Machine Learning Context Using {NASA} Aviation Datasets},
    organization = {Carnegie Mellon University EE18799-SV},
    year = {2014}
    }
  • G. A. Phelps, C. Ippolito, R. Lee, J. Spritzer, and Y. Yeh, “Investigations into near-real-time surveying for geophysical data collection using an autonomous ground vehicle,” United States Geological Survey (USGS) 2014.
    [Bibtex]
    @TechReport{Phelps2014,
    author = {Phelps, Geoffrey A and Ippolito, Corey and Lee, Ritchie and Spritzer, John and Yeh, Yoo-Hsiu},
    title = {Investigations into Near-Real-Time Surveying for Geophysical Data Collection Using an Autonomous Ground Vehicle},
    institution = usgs,
    year = {2014}
    }
  • R. Lee, M. J. Kochenderfer, O. J. Mengshoel, G. P. Brat, and M. P. Owen, “Adaptive stress testing of airborne collision avoidance systems,” in Ieee/aiaa digital avionics systems conference (dasc), 2015.
    [Bibtex]
    @InProceedings{Lee2015,
    author = {Ritchie Lee and Mykel J. Kochenderfer and Ole J. Mengshoel and Guillaume P. Brat and Michael P. Owen},
    title = {Adaptive Stress Testing of Airborne Collision Avoidance Systems},
    booktitle = dasc,
    organization = {AIAA/IEEE},
    note = {Best Paper of Session},
    year = {2015}
    }
  • A. Agogino, A. Iscen, R. Lee, D. Bowers, K. Tumer, and G. Brat, “Scalable hierarchical multifidelity simulation and multiagent optimization of air traffic,” in AAMAS workshop on massive multiagent systems, 2015.
    [Bibtex]
    @InProceedings{Agogino2015,
    Title = {Scalable Hierarchical Multifidelity Simulation and Multiagent Optimization of Air Traffic},
    Author = {Adrian Agogino and Atil Iscen and Ritchie Lee and Devin Bowers and Kagan Tumer and Guillaume Brat},
    Booktitle = {{AAMAS} Workshop on Massive Multiagent Systems},
    Year = {2015}
    }
  • R. Lee, A. Agogino, and D. Giannakopoulou, “Algorithms and tools for model-based V&V of autonomy software,” NASA 2017.
    [Bibtex]
    @TechReport{Lee2017,
    Title = {Algorithms and Tools for Model-Based {V\&V} of Autonomy Software},
    Author = {Lee, Ritchie and Agogino, Adrian and Giannakopoulou, Dimitra},
    Institution = {NASA},
    Year = {2017}
    }
  • R. Lee, O. J. Mengshoel, A. Saksena, R. Gardner, D. Genin, J. Brush, and M. J. Kochenderfer, “Differential adaptive stress testing of airborne collision avoidance systems,” in Aiaa scitech, modeling and simulation technologies conference (mst), 2018.
    [Bibtex]
    @InProceedings{Lee2018a,
    author = {Lee, Ritchie and Mengshoel, Ole J. and Saksena, Anshu and Gardner, Ryan and Genin, Daniel and Brush, Jeffrey and Kochenderfer, Mykel J.},
    title = {Differential Adaptive Stress Testing of Airborne Collision Avoidance Systems},
    booktitle = aiaa_mst,
    year = {2018},
    note = {Best Paper Award},
    Organization = {AIAA}
    }
  • R. Lee, M. J. Kochenderfer, O. J. Mengshoel, and J. Silbermann, “Interpretable categorization of heterogeneous time series data,” in International conference on data mining (sdm), 2018.
    [Bibtex]
    @InProceedings{Lee2018b,
    author = {Lee, Ritchie and Kochenderfer, Mykel J. and Mengshoel, Ole J. and Silbermann, Joshua},
    title = {Interpretable Categorization of Heterogeneous Time Series Data},
    booktitle = sdm,
    year = {2018},
    Organization = {SIAM}
    }
  • M. Koren, S. Alsaif, R. Lee, and M. J. Kochenderfer, “Adaptive stress testing for autonomous vehicles,” in Ieee intelligent vehicles symposium (iv), 2018.
    [Bibtex]
    @InProceedings{Koren2018,
    author = {Mark Koren and Saud Alsaif and Ritchie Lee and Mykel J. Kochenderfer},
    title = {Adaptive Stress Testing for Autonomous Vehicles},
    booktitle = iv,
    Organization = {IEEE},
    year = {2018}
    }
  • R. Lee, O. J. Mengshoel, A. K. Agogino, D. Giannakopoulou, and M. J. Kochenderfer, “Adaptive stress testing of trajectory planning systems,” in Aiaa scitech, intelligent systems conference (is), 2019.
    [Bibtex]
    @inproceedings{Lee2019a,
    author = {Lee, Ritchie and Mengshoel, Ole J. and Agogino, Adrian K. and Giannakopoulou, Dimitra and Kochenderfer, Mykel J.},
    title = {Adaptive Stress Testing of Trajectory Planning Systems},
    booktitle = aiaa_is,
    year = {2019},
    organization = {AIAA}
    }
  • A. K. Agogino, R. Lee, and D. Giannakopoulou, “Challenges of explaining real-time planning,” in ICAPS workshop on explainable planning (XAIP), 2019.
    [Bibtex]
    @InProceedings{Agogino2019a,
    Author = {Agogino, Adrian K. and Lee, Ritchie and Giannakopoulou, Dimitra},
    title = {Challenges of Explaining Real-Time Planning},
    booktitle = {{ICAPS} Workshop on Explainable Planning ({XAIP})},
    year = {2019}
    }
  • R. Lee, “Adastress: adaptive stress testing and interpretable categorization for safety-critical systems,” PhD Thesis, 2019.
    [Bibtex]
    @phdthesis{leethesis,
    author = {Ritchie Lee},
    title = {AdaStress: Adaptive Stress Testing and Interpretable Categorization for Safety-Critical Systems},
    school = {Carnegie Mellon University},
    year = {2019},
    month = {May}
    }
  • R. Lee, O. J. Mengshoel, and M. J. Kochenderfer, “Adaptive stress testing of safety-critical systems,” in Safe, autonomous, and intelligent vehicles, Springer, 2019, p. 77–95.
    [Bibtex]
    @InCollection{Lee2019b,
    author = {Lee, Ritchie and Mengshoel, Ole J. and Kochenderfer, Mykel J.},
    title = {Adaptive Stress Testing of Safety-Critical Systems},
    booktitle = {Safe, Autonomous, and Intelligent Vehicles},
    series = {Unmanned Systems Technology},
    publisher = {Springer},
    year = {2019},
    pages = {77--95}
    }
  • R. Lee, Clarke Justin, A. K. Agogino, and D. Giannakopoulou, “Improving trust in deep neural networks using nearest neighbors,” in Aiaa scitech, intelligent systems conference (is), 2020.
    [Bibtex]
    @inproceedings{Lee2020a,
    author = {Lee, Ritchie and Clarke, Justin, and Agogino, Adrian K. and Giannakopoulou, Dimitra},
    title = {Improving Trust in Deep Neural Networks using Nearest Neighbors},
    booktitle = aiaa_is,
    year = {2020},
    organization = {AIAA}
    }
  • R. J. Moss, R. Lee, and M. J. Kochenderfer, “Adaptive stress testing of trajectory predictions in flight management systems,” in Ieee/aiaa digital avionics systems conference (dasc), 2020.
    [Bibtex]
    @InProceedings{Moss2020a,
    author = {Robert J. Moss and Ritchie Lee and Mykel J. Kochenderfer},
    title = {Adaptive Stress Testing of Trajectory Predictions in Flight Management Systems},
    booktitle = dasc,
    organization = {AIAA/IEEE},
    note = {Best Paper of Session},
    year = {2020}
    }
  • A. Corso, R. Lee, and M. J. Kochenderfer, “Scalable autonomous vehicle safety validation through dynamic programming and scene decomposition,” in Ieee international conference on intelligent transportation systems (itsc), 2020.
    [Bibtex]
    @InProceedings{Corso2020a,
    author = {Anthony Corso and Ritchie Lee and Mykel J. Kochenderfer},
    booktitle = itsc,
    title = {Scalable Autonomous Vehicle Safety Validation Through Dynamic Programming and Scene Decomposition},
    year = {2020}
    }
  • K. D. Julian, R. Lee, and M. J. Kochenderfer, “Validation of image-based neural network controllers through adaptive stress testing,” in Ieee international conference on intelligent transportation systems (itsc), 2020.
    [Bibtex]
    @InProceedings{Julian2020a,
    author = {Kyle D. Julian and Ritchie Lee and Mykel J. Kochenderfer},
    booktitle = itsc,
    title = {Validation of Image-Based Neural Network Controllers Through Adaptive Stress Testing},
    year = {2020}
    }
  • R. Lee, O. J. Mengshoel, A. Saksena, R. Gardner, D. Genin, J. Silbermann, M. Owen, and M. J. Kochenderfer, “Adaptive stress testing: finding likely failure events with reinforcement learning,” Journal of artificial intelligence research, vol. 69, p. 1165–1201, 2020.
    [Bibtex]
    @article{Lee2020b,
    author = {Lee, Ritchie and Mengshoel, Ole J. and Saksena, Anshu and Gardner, Ryan and Genin, Daniel and Silbermann, Joshua and Owen, Michael and Kochenderfer, Mykel J.},
    title = {Adaptive Stress Testing: Finding Likely Failure Events with Reinforcement Learning},
    journal = jair,
    year = {2020},
    volume = {69},
    pages = {1165--1201}
    }
  • Proc. 12th international NASA formal methods symposium, R. Lee, S. Jha, A. Mavridou, and D. Giannakoupoulou, Eds., Springer, 2020, vol. 12229.
    [Bibtex]
    @book{Lee2020c,
    title = {Proc. 12th International {NASA} Formal Methods Symposium},
    editor = {Ritchie Lee and Susmit Jha and Anastasia Mavridou and Dimitra Giannakoupoulou},
    series = {Lecture Notes in Computer Science},
    volume = {12229},
    publisher = {Springer},
    year = {2020},
    }
  • A. K. Agogino, R. Lee, and D. Giannakopoulou, “Machine learning explainability and transferability for path navigation,” in Aiaa scitech, intelligent systems conference (is), 2021.
    [Bibtex]
    @inproceedings{Agogino2021a,
    author = {Agogino, Adrian K. and Lee, Ritchie and Giannakopoulou, Dimitra},
    title = {Machine Learning Explainability and Transferability for Path Navigation},
    booktitle = aiaa_is,
    year = {2021},
    organization = {AIAA}
    }
  • A. Corso, R. J. Moss, M. Koren, R. Lee, and M. J. Kochenderfer, “A survey of algorithms for black-box safety validation,” Journal of artificial intelligence research, vol. 72, p. 377–428, 2021.
    [Bibtex]
    @Article{Corso2021a,
    author = {Anthony Corso and Robert J. Moss and Mark Koren and Ritchie Lee and Mykel J. Kochenderfer},
    title = {A Survey of Algorithms for Black-box Safety Validation},
    journal = jair,
    year = {2021},
    volume = {72},
    pages = {377--428}
    }
  • M. Durling, H. Herencia-Zapana, B. Meng, M. Meiners, J. Hochwarth, N. Visser, R. Lee, R. Moss, and V. T. Valapil, “Certification considerations for adaptive stress testing of airborne software,” in Ieee/aiaa digital avionics systems conference (dasc), 2021.
    [Bibtex]
    @InProceedings{Durling2021a,
    title = {Certification Considerations for Adaptive Stress Testing of Airborne Software},
    author = {Durling, Michael and Herencia-Zapana, Heber and Meng, Baoluo and Meiners, Mike and Hochwarth, Joachim and Visser, Nicholas and Lee, Ritchie and Moss, Robert and Valapil, Vidhya Tekken},
    booktitle = dasc,
    year = {2021},
    organization = {AIAA/IEEE}
    }
  • R. Lipkis, R. Lee, J. Silbermann, and T. Young, “Adaptive stress testing of collision avoidance systems for small uass with deep reinforcement learning,” in Aiaa scitech, intelligent systems conference (is), 2022.
    [Bibtex]
    @inproceedings{Lipkis2022,
    title = {Adaptive Stress Testing of Collision Avoidance Systems for Small UASs with Deep Reinforcement Learning},
    author = {Lipkis, Rory and Lee, Ritchie and Silbermann, Joshua and Young, Tyler},
    booktitle = aiaa_is,
    organization = {AIAA},
    year = {2022}
    }