Google Citations

Pre-Prints

  1. Hejun Lei, Paul Weng, Juan Rojas, Yisheng GuanPlanQ: Planning with Q-values in Sparse Rewards.

  2. Syed Abdullah Nazir, PU XU, Juan Rojas, Jungwon Seo, Learning to Rock-and-Walk: Dynamic, Non-Prehensile, and Underactuated Object Locomotion through Reinforcement Learning.

  3. Chao Zhao, Zhekai Tong, Juan Rojas, Learning to Pick by Digging: Data-Driven Dig-Grasping for Bin Picking from Clutter.

Books

  1. Zhou, Xuefeng and Wu, Hongmin and Rojas, Juan and Xu, Zhihao and Li, Shuai; Nonparametric Bayesian Learning for Collaborative Robot Multimodal Introspection, Springer 2020.
    [link][bib]
  2. R. Patrick Goebel, ROS By Example Indigo – Volume 1, Translated by: J. Rojas, Yaxia Wang, Liu Zhen Dong, Li Zi Ran, Huang Zhen Jie, Guo Li Wei, Chen Ya Xue, Luo Sheng, Lin Chen Yu, Cheng Yang Pu. SYSU Publisher, 2019.
    [link][link]
  3. Patrick Goebel, ROS By Example INDIGO – Volume 2, Translated by: J. Rojas, Liu Zhen Dong, Li Zi Ran, Huang Zhen Jie, Guo Li Wei, Chen Ya Xue, Luo Sheng, Lin Chen Yu, Cheng Yang Pu. SYSU Publisher, 2017.
    [link][link][link]
  4. R. Patrick Goebel, ROS By Example HYDRO – Volume 1, Translated by J. Rojas, PengYeYi, HuangLingLing, Liu KeShan, Liu Zhendong, Li JiaNeng. SYSU Publisher, 2015.
    [link]

Journals

  1. Guanglin Ji, Junyan Yan, Jingxin Du, Wanquan Yan, Jibiao Chen, Yongkang Lu, Juan Rojas, Shing Shin Cheng, Towards Safe Control of Continuum Manipulator Using Shielded Multiagent Reinforcement Learning, IEEE Robotics and Automation Letters, Vol. 6, Issue. 4, p. 7461-7468, doi 10.1109/LRA.2021.3097660
    [arxiv][ieee]
  2. Jiancong Huang*, Juan Rojas*, Matthieu Zimmer, Hongmin Wu, Yisheng Guan, and Paul Weng, Hyperparameter Auto-tuning in Self-Supervised Robotic Learning, IEEE Robotics and Automation Letters (RAL), doi: 10.1109/LRA.2021.3064509, March 2021.
    [arxiv][video][project][ieee]
  3. Shuangqi Luo, Hongmin Wu, Shuangda Duan, Yijiong Lin, and Juan Rojas, Endowing Robots with Longer-term Autonomy by Recovering from External Disturbances in Manipulation through Grounded Anomaly Classification and Recovery Policies, Journal of Intelligent Robot Systems, 101, 51, Feb 2021.
    [arxiv][video][project]
  4. Yijiong Lin, Jiancong Huang, Matthieu Zimmer, Yisheng Guan, Juan Rojas, and Paul Weng, Invariant Transform Experience Replay: Data Augmentation for Deep Reinforcement Learning, IEEE Robotics and Automation Letters (RAL), Vol. 5, No. 4, p. 6615-6622, Oct. 2020.
    [ieee][arxiv][video][project]
  5. Hongmin Wu, Yisheng Guan, and Juan Rojas. Analysis of multimodal Bayesian nonparametric autoregressive hidden Markov models for process monitoring in robotic contact tasks, International Journal of Advanced Robotic Systems 16.2 (2019).
    [paper][bibtex]
  6. Hongmin Wu, Yisheng Guan, and Juan Rojas, A Latent State-based Multimodal Execution Monitor with Anomaly Detection and Classification for Robot Introspection, Appl. Sci. 2019, 9(6), 1072; doi: 10.3390/app9061072.
    [paper][bibtex]
  7. Hongmin Wu, Yisheng Guan and Juan Rojas, Robot Introspection for Process Monitoring in Robotic Contact Tasks through Bayesian Nonparametric Autoregressive Hidden Markov Models, International Journal of Advanced Robotics Systems, 2018 (IF 0.952).
    [paper][bibtex]
  8. Peihao Shi, Kensuke Harada, Weiwei Wan, Juan Rojas, Hiromu Onda, Ixchel G. Ramirez-Alpizara, Nobuchika Sakata, EstimatingOptimizing the Motion for Robotic Snap Assembly, Journal of Robotics Networking and Artificial Life (JRNAL), Vol. 5, No. 2, pg. 105-109, 2018.
    [paper][bibtex]
  9. Kensuke Harada, Kazuyuki Nagata, Juan Rojas, Ixchel G. Ramirez-Alpizara, Weiwei Wana, Hiromu Onda, and Tokuo Tsuji, Proposal of a Shape Adaptive Gripper for Robotic Assembly Tasks, Journal of Advanced Robotics, 30.17-18, p. 1186-1198, Jul 22, 2016 (SCI).
    [paper][bibtex]
  10. J. Rojas and R.A. Peters II, Analysis of Autonomous Cooperative Assembly By Force Feedback Using A Control Basis Approach, Springer Journal of Autonomous Robots, 32.4, p. 369-383, May 1, 2012. (SCI, Top 4 Robotics Journal, Impact Factor: 2.066.)
    [paper][bibtex]
  11. J. Rojas, K. Harada, H. Onda, N. Yamanobe, E. Yoshida, K. Nagata, and Y. Kawai, Towards Snap Sensing, Inderscience International Journal of Mechatronics and Automation, 3.2, p. 69-93, April 22, 2013.
    [paper][bibtex] [data]
  12. J. Rojas and R.A. Peters II, Sensory integration with articulated motion on a humanoid robot, Journal of Applied Bionics and Biomechanics (ABBI), 2.3, p. 171-178, March 01, 2005.
    [paper][bibtex]

Conference Proceedings (Peer-Reviewed)

  1. Zhijun Liang, Yihui Liu, Yisheng Guan, Juan Rojas, Visual-Semantic Graph Attention Networks for Human-Object Interaction Detection, IEEE International Conference on Robotics and Biomimetics (ROBIO), (in-print), 2021.

  2. Zhaolong Zhang, Yihui Li, Juan Rojas, and Yisheng Guan, Leveraging Expert Demonstrations in Robot Cooperation with Multi-Agent Reinforcement Learning, International Conference on Intelligent Robotics and Applications (ICIRA). Lecture Notes in Computer Science, vol 13014, p. 211-222, Springer, Cham. Yantai China, 2021.

  3. Junfa Liu*, Juan Rojas*, Zhijun Liang, Yihui Li, and Yisheng Guan, A Graph Attention Spatio-temporal Convolutional Networks for 3D Human Pose Estimation in Video, 2021 IEEE International Conference on Robotics and Automation (ICRA), p. 3374 – 3380, May 2021.
    [arxiv][video][project]

  4. Yusuke Hayami, Weiwei Wan, Keisuke Koyama, Peihao Shi, Juan Rojas, Kensuke Harada, Error Identification and Recovery in Robotic Snap Assembly, 2021 IEEE/SICE International Symposium on System Integration (SII 2021), Fukushima, Japan, Jan. 11-14, 2021 (Best Paper Award Finalist).
    [paper]
  5. Yanting Liu and Juan Rojas, Evaluation of the ROOT Robot System and Curriculum to Improve Computational Thinking in Young Children, 2019 Do Good Robotics Symposium (DGRS), Maryland, USA, Oct. 3-4 2019.
    [paper][poster]
  6. Yanting Liu and Juan Rojas, Evaluation of the ROOT Robot System and Curriculum to Improve Computational Thinking in Young Children, IEEE Region 10 Humanitarian Technology Conference (HTC), Depok, Indonesia Nov. 12-14 2019.
    [paper][bib]
  7. Shuangda Duan, Longxin Chen, Yaxiang Wang, Xuan Zhao, and Juan Rojas, Dynamic Interaction Probabilistic Movement Primitives, IEEE International Conference on Real-Time Computing and Robotics (RCAR), p. 89-105, Irkutsk, Russia, Aug. 5-10, 2019.
    [arxiv][paper][bib][video]
  8. Juan Rojas. Plastic Waste is Exponentially Filling Our Oceans, but Where are the Robots? IEEE Region 10 Humanitarian Technology Conference (R10-HTC), p. 1-6, Colombo, Sri Lanka, Dec. 6-8, 2018.
    [arxiv][paper][bibtex]
  9. Hongmin Wu, Dong Liu, Shuangda Duan, Yisheng Guan, and Juan Rojas, Multimodal Sparse Representation for Anomaly Classification in A Robot Introspection System, IEEE International Conference on Robotics and Biomimetics (ROBIO), p. 1594-1600, Kuala Lumpur, Malaysia, Dec. 12-15, 2018.
    [paper][bib]
  10. Xuan Zhao, Sakmongkon Chumkamon, Shuanda Duan, Juan Rojas, and Jia Pan, Collaborative Human-Robot Motion Generation using LSTM-RNN, IEEE-RAS International Conference on Humanoid Robotics (Humanoids), p. 1-9, Beijing, China, Nov. 6-9, 2018.
    [paper][bibtex][video]
  11. Shuangqi Luo, Hongmin Wu, Hongbin Lin, Shuangda Duan, Yisheng Guan, and Juan Rojas,  Fast, Robust, and Versatile Event Detection through HMM Belief State Gradient Measures, IEEE International Conference on Robots Man and Systems Interactions Conference (RO-MAN), Nanjing, China, August 27-31, 2018.
    [arxiv][paper][bibtex]
  12. Hongmin Wu, Hongbin Lin, Shuangqi Luo, Shuangda Duan, Yisheng Guan, and Juan Rojas, Recovering from External Disturbances in Online Manipulation through State-Dependent Revertive Recovery Policies, IEEE Robots Man Systems Interactions Conference (RO-MAN), p. 166-173, Nanjing, China, Aug. 27-31, 2018.
    [arXiv][paper][bibtex]
  13. Peihao Shi, Kensuke Harada, Weiwei Wan, Ixchel G. Ramirez, Juan Rojas, and Hiromu Onda, Motion Selection for 3D Robotic Snap Assembly, International Conference on Artificial Life and Robotics (ICAROB), Oitta, Japan, Feb. 1-4, 2018.
    [paper][bibtex]
  14. Shichao Gu, Manjia Su, Haifei Zhu, Yisheng Guan, Juan Rojas, and Hong Zhang. Efficient pole detection and grasping for autonomous biped climbing robots, IEEE International Conference on Robotics and Biomimetics (ROBIO), pp. 246-251. IEEE, 2017.
    [arXiv][paper][bibtex]
  15. Ruotao He, Juan Rojas, Yisheng Guan, A 3D Object Detection and Pose Estimation Pipeline Using RGB-D Images, IEEE International Conference on Robotics and Biomimetics (ROBIO), p. 1527-1532, Macau, Dec. 5-8, 2017 (SCI/EI).
    [arXiv][paper][bibtex]
  16. Chen Longxin, Juan Rojas, and Yisheng Guan, Fusion of Muscle Activity with Interaction Movement Models for Learning Human-Robot Collaboration Insights, IEEE International Conference on Humanoid Robots (Humanoids), p. 491-496, Birmingham, England, Nov. 15-17, 2017.
    [arXiv][paper][bibtex]
  17. Hongmin Wu, Juan Rojas, Hongbin Lin, and Kensuke Harada, Robot Introspection with Bayesian Nonparametric Vector Autoregressive Hidden Markov Models,IEEE International Conference on Humanoid Robots (Humanoids), p. 882-888, Birmingham, England, Nov. 15-17, 2017.
    [arxiv][paper][bibtex]
  18. Juan Rojas, Shuangqi Luo, Dingqiao Zhu, Yunlong Du, Hongbin Lin, Zhengjie Huang, Wenwei Kuang, and Kensuke Harada, Online Robot Introspection via Wrench-based Action Grammars, IEEE International Conference on Intelligent Robots and Systems (IROS), p. 5429-5436, Vancouver, Canada, Sep.24-28, 2017 (SCI,EI),
    [bibtex][arXiv][paper]
  19. Kewei Lin, Juan Rojas, and Yisheng Guan, A Vision-based Scheme for Kinematic Model Construction of Re-configurable Modular Robots, IEEE International Conference on Intelligent Robots and Systems (IROS),  p. 2751-2757, Vancouver, Canada, Sep.24-28, 2017 (SCI,EI).
    [bibtex][arXiv][paper]
  20. Juan Rojas,ZhenJie Huang, Kensuke Harada , Robot Contact Task State Estimation via Action Grammars, IEEE International Conference on Humanoid Robots (Humanoids), p. 249-255, Cancun, Mexico, Nov. 15-17 2016.
    [bibtex] [arXiv] [paper]
  21. Juan Rojas, Wyatt Newman, Huangzhen Jie and Qiming Liu, A Steering Wheel Manipulation Scheme by an Anthropomorphic Humanoid Robot in a Constrained Vehicle Environment, IEEE International Conference on Robotics and Biomimetics (ROBIO), p. 1566-1571, Zhuhai, China, Dec 6 – Dec 9, 2015 (SCI,EI).
    [bibtex] [paper]
  22. Juan Rojas, Kensuke Harada, Hiromu Onda, Natsuki Yamanobe, Eiichi Yoshida, and Kazuki Nagata, Contextualized Early Failure Characterization of Cantilever Snap Assemblies, IEEE International Conference on Humanoid Robots (Humanoids), p. 380-387, Madrid, Spain, Nov. 18-20, 2014.
    [bibtex] [paper] [data] [code]
  23. J. Rojas, TianQiang Guan, Weiqiang Luo, and K. Harada, Strategies, Controllers, and Coordination: Bi-Manual Snap Assembly Automation, IEEE International Conference on Robotics and Biomimetics (ROBIO), p. 1266-71, Bali Indonesia, Dec. 5-10, 2014 (SCI,EI).
    [bibtex] [paper] [data] [code]
  24. Zhengwei Hui, Juan Rojas, Li Lin, Ho Leung Ting, ChenYu Zhao, A Swarm Framework for Teaching Elementary Addition Operations, IEEE International Conference on Robotics and Biomimetics (ROBIO), Bali Indonesia, p. 1027-1032, Dec. 5-10, 2014 (SCI,EI).
    [bibtex] [paper]
  25. Weiqiang Luo, J. Rojas, K. Harada, Cantilever Snap Assemblies Failure Detection using SVMs and the RCBHT, IEEE International Conference on Mechatronics and Automation (ICMA), p. 384-389, Tianjin, China, Aug. 2-5, 2014 (EI).
    [bibtex] [paper] [data]
  26. J. Rojas, K. Harada, H. Onda, N. Yamanobe, E. Yoshida, and K. Nagata, Early Failure Characterization of Cantilever Snap Assemblies using the PA-RCBHT, IEEE International Conference on Robotics and Automation (ICRA), p. 3370-3377, Hong Kong, China, May 31- Jun 5, 2014 (SCI/EI).
    [bibtex] [paper] [data] [code]
  27. J. Rojas, K. Harada, H. Onda, N. Yamanobe, E. Yoshida, K. Nagata, and Y. Kawai, A Gradient Calibration for the RCBHT Cantilever Snap Verification System, IEEE International Conference on Robotics and Biomimetics (ROBIO), p. 984-990, Guangzhou, China, Dec. 11-14, 2012 (SCI,EI).
    [bibtex] [paper] [data] [code]
  28. J. Rojas, K. Harada, H. Onda, N. Yamanobe, E. Yoshida, K. Nagata, and Y. Kawai, Probabilistic State Verification for Snap Assemblies using the Relative-Change-Based Hierarchical Taxonomy, IEEE International Conference on Humanoid Robots (Humanoids),  p. 96-103, Osaka, Japan, Nov. 29 – Dec. 1, 2012.
    [bibtex] [paper] [poster] [data] [code]
  29. J. Rojas, K. Harada, H. Onda, N. Yamanobe, E. Yoshida, K. Nagata, and Y. Kawai, A Relative-Change-Based Hierarchical Taxonomy for Cantilever-Snap Assembly Verification, IEEE International Conference on Intelligent Robots and Systems (IROS), p. 356-363, Vilamoura, Portugal, Oct. 7-12, 2012 (SCI,EI).
    [bibtex] [paper] [data] [code]
  30. J. Rojas, K. Harada, H. Onda, N. Yamanobe, E. Yoshida, K. Nagata, and Y. Kawai, A Constrain-Based Motion Control Strategy for Cantilever Snap Assemblies, IEEE International Conference on Mechatronics and Automation (ICMA), p. 1815 – 1821, Chengdu, China, Aug. 5-8, 2012 (EI).
    [bibtex] [paper] [data] [code]
  31. J. Rojas and R.A. Peters II, Automating Short-Term Insertion of Parts for Heterogeneous Robots Using a Control Basis Approach, IEEE Conference on Humanoid Robots (Humanoids), p. 551-556, Bled, Slovenia, Oct. 26-28, 2011.
    [bibtex] [paper] [poster]
  32. J. Rojas, Assessment of a Proprietary Online Smart-Family-Matching Tool to Reunite Lost Families, 10th IEEE AFRICON Conference in Africa, p. 1-6, Livingstone, Zambia, Sept. 13-15 2011.
    [bibtex] [paper]
  33. J. Rojas and R. A. Peters II, Preliminary results in force-guided assembly for teams of heterogeneous robots, Proceedings of the SPIE Conference on Defense and Security, Unmanned Systems Technology, 7332.2, Orlando, USA, Apr. 13-1, 2009 (SCI).
    [bibtex] [paper]
  34. J. Rojas and R.A. Peters II, “Sensory integration with articulated motion on a humanoid robot,” Proceedings International Symposium on Robotics and Automation, Queretaro, Mexico, Aug. 25-27, 2004.
    [bibtex] [paper]

Workshops, Tutorials & Late-Breaking Results

  1. Jiancong Huang, Juan Rojas, Matthieu Zimmer, Hongmin Wu, Yisheng Guan, Paul Weng, Hyperparameter Auto-tuning in Self-Supervised Robotic Learning, NeurIPS 2020 Deep RL Workshop,
    Virtual, Dec. 11, 2020.

  2. Yijiong Lin, Jiancong Huang, Matthieu Zimmer, Yisheng Guan, Juan Rojas, and Paul Weng, Towards More Sample Efficiency in Reinforcement Learning with Data Augmentation, 2019 NeurIPS Workshop on Robot Learning, Vancouver, Canada, Dec. 01, 2019.

  3. Yijiong Lin, Jiancong Huang, and Juan Rojas, Half-Day Tutorial I: Introduction to ROS and Deep Reinforcement Learning Frameworks, IEEE International Conference on Real-Time Computing and Robotics (RCAR), Irkutsk, Russia, Aug. 5-10, 2019.

  4. Sakmongkon Chumkamon, Shuangda Duan, and Juan Rojas Full Day Tutorial on Motion Skill Generation and Classification for Human Robot Interaction, IEEE
    International Conference on Robotics and Biomimetics (ROBIO), Kuala Lumpur, Malaysia, Dec. 12-15, 2018.

  5. Hongmin Wu, Hongbin Lin, Shuangqi Luo, Shuangda Duan, Chen Xiang, Bo Zhao, and Juan Rojas, Learning Robot Introspection Dynamics for Error Learning and Prevention, IEEE International Conference on Robotics and Systems (IROS) Workshop on Introspective Methods for Reliable Autonomy, Vancouver, Canada, Sept. 24-28, 2017.
    [paper][poster]

  6. Sakmongkon Chumkamon, Eiji Hayashi and Juan Rojas, Robot Sharing Human Emotion for Improving Relationship base on Facial Expression Recognition, Proceedings of Robotics, Science, and Systems (RSS) Workshop: Morality and Social Trust in Autonomy, Boston, July 12-16, 2017.
    [paper][poster]
  7. Juan Rojas, Shuangqi Luo, Hongmin Wu, Hongbin Lin, Dingqiao Zhu, Online Decision Making, IEEE International Conference on Robotics and Automation (ICRA) Workshop: AI in Automation, Singapore, Jun. 2, 2017.
    [presentation]
  8. Juan Rojas, Zhengjie Huang, Dingqiao Zhu, Shuangqi Luo, and Kensuke Harada, Robot Introspection, IEEE International Conference on Robots and Systems (IROS) Workshop: See, Touch and Hear: 2nd Workshop on Multimodal Sensor-based Robot Control for HRI and Soft Manipulation, Daejeon, S. Korea, Oct. 10, 2016.
    [presentation]
  9. Juan Rojas and Zhengjie Huang; Behavior, Task, and Skill Characterization for Contact Manipulation Tasks, Robotics Science, and Systems, Ann Arbor, USA, June 18-22, 2016.
    [Abstract][Poster]
  10. Juan Rojas Kensuke Harada; Contact Guided Assemblies, IEEE International Conference on Robotics and Automation, Stockholm, Sweden, May 16-21, 2016.
    [Abstract] [Poster]
  11. Juan Rojas, Wen Wei Kuang, Kensuke Harada, A High-Level State Estimation and Verification Scheme for Dual Armed Humanoids performing Assembly Tasks, IEEE Conference on Intelligent Robots and Systems (IROS) Late Breaking Results, Hamburg Germany, Sept 28 – Oct 2, 2015.
    [Program] [Poster]
  12. Kensuke Harada, Kazuyuki Nagata, Juan Luis Rojas, Natsuki Yamanobe, Hiromu Onda, Tokuo Tsuji, Universal Hand for Parts Assembly Based on Granular Jamming, IEEE Conference on Robotics and Automation (ICRA) Late Breaking Results Session, Seattle, USA, May 26-30, 2015.
    [Program] [Abstract]
  13. K. Harada, J. Rojas, and E. Yoshida, Control and Motion Planning for Flexible Parts Assembly, IEEE Conference on Robotics and Automation (ICRA) Workshop, May 31- Jun 5, 2014.
    [Program][Abstract]
  14. J. Rojas and R.A. Peters II, Cooperative and Coordinated Assembly for Heterogeneous Robots via Distributed Mobile Agents, IEEE Conference on Robotics and Automation (ICRA) Workshop, Shanghai, China, May 2011.
    [bibtex][paper]

Talks

  1. Learning Robust Manipulation Skills, University of Hong Kong, Department of Mechanical Engineering, Seminar, April 16, 2020.
  2. Getting Started with RL and ROS, CFAIR, April 29, 2019.
  3. Probabilistic Robotics, ROS Summer School: Tsinghua University, April 2018.
  4. Robot Introspection in ROS, ROS Summer School: East China Normal University, July 26, 2017.
    [Presentation]
  5. Online Decision Making via Robot Introspection, Nanjing Tech University, June 19, 2017.
  6. Manipulation in ROS, ROS Training Day, Guangdong University of Technology, June 14, 2016.
    [Presentation]
  7. ROS Overview, ROS Training Day, Shanghai Jiaotong University, November 24, 2013. [
    [Presentation]

Ph.D. Dissertation

J. Rojas, Autonomous Cooperative Assembly by Force Feedback Using a Control Basis Approach, Ph.D. Dissertation, Vanderbilt University, April 2009.
[bibtex]

Master’s Thesis

J. Rojas, Sensory integration with articulated motion on a humanoid robot, Master’s Thesis, Vanderbilt University, April 2004.
[bibtex]