Events for
Past Seminars and Events
July 16, 2020
July 14, 2020
July 10, 2020
  • Title: Robust Decision Making in a Partially Observable World

    Time: 02:00pm 

    Venue: Online

    Speaker(s): Hanna Kurniawati, Australian National University

    Remark(s): 

    Zoom meeting link:
    https://hku.zoom.us/j/94650715947
    Meeting ID: 946 5071 5947

    Title: Robust Decision Making in a Partially Observable World
     
    Speaker: Hanna Kurniawati, Australian National University
     
     
    Date: July 10, 2020 (Friday)
    Time: 2:00 pm (HK Time) (GMT+8)
     
    Abstract:
     
    Robust robot operation must answer: What to do now, to receive good long-term returns, despite notRobust robot operation must answer: What to do now, to receive good long-term returns, despite notknowing the exact effect of its actions, despite various errors in sensors and sensing, and despitelimited information about the environment and itself. This problem is not new. Mathematically principledconcepts --called Partially Observable Markov Decision Processes (POMDPs)-- have been developedmore than five decades ago to address the problem mentioned above. However, such concepts arenotorious for their computational complexity, that they have often been considered impractical. I willpresent some of our effort in addressing the computational complexity issues of solving POMDPs, anddemonstrate that this decision making concept has now become practical (to some extent) for solvingvarious problems in robotics. I will end with a discussion on what this technology could mean inbridging the gap between sensing and acting in robotics, and between planning and learning ingeneral.
     
    About the speaker:
     
    Hanna Kurniawati is a Senior Lecturer with ANU and CS Futures Fellowship at the Research School ofHanna Kurniawati is a Senior Lecturer with ANU and CS Futures Fellowship at the Research School ofComputer Science, Australian National University (ANU). Prior to ANU, she was an academic at theUniversity of Queensland and a Research Scientist at the Singapore-MIT Alliance for Research andTechnology. She earned a PhD in Computer Science from National University of Singapore for work onrobot motion planning. Her current research focuses on the design and development of algorithms thatenable mathematically principled concepts for robust decision making to become practical tools inrobotics. Along with colleagues and students, she won a best paper award at ICAPS’15 and was afinalist of the best paper award at ICRA’15. She was also a keynote speaker at IROS’18.
     
    All are welcome!
    Tel: 2859 2180

July 02, 2020
June 30, 2020
June 19, 2020
  • Title: Robots Learning (Through) Interactions

    Time: 04:00pm 

    Venue: Online

    Speaker(s): Professor Jens Kober, Cognitive Robotics Department (CoR), Delft University of Technology

    Remark(s): 

    Date: June 19, 2020 (Friday)
    Time: 4:00 pm (HK Time) (GMT+8)

    Zoom link: https://hku.zoom.us/j/93201362975
    Meeting ID: 932 0136 2975

    Title: Robots Learning (Through) Interactions

     

    Speaker: Professor Jens Kober, Cognitive Robotics Department (CoR), Delft University of Technology

     

    Abstract:

    The acquisition and self-improvement of novel motor skills is among the most important problems in robotics. Reinforcement learning and imitation learning are two different but complimentary machine learning approaches commonly used for learning motor skills.

    I will discuss various learning techniques we developed that can handle complex interactions with the environment. Complexity arises from non-linear dynamics in general and contacts in particular, taking multiple reference frames into account, dealing with high-dimensional input data, interacting with humans, etc. A human teacher is always involved in the learning process, either directly (providing demonstrations) or indirectly (designing the optimization criterion), which raises the question: How to best make use of the interactions with the human teacher to render the learning process efficient and effective?

    All these concepts will be illustrated with benchmark tasks and real robot experiments ranging from fun (ball-in-a-cup) to more applied (unscrewing light bulbs).

    About the speaker:

     

    Jens Kober is an associate professor at the TU Delft, Netherlands. He worked as a postdoctoral scholar jointly at the CoR-Lab, Bielefeld University, Germany and at the Honda Research Institute Europe, Germany. He graduated in 2012 with a PhD Degree in Engineering from TU Darmstadt and the MPI for Intelligent Systems. For his research he received the annually awarded Georges Giralt PhD Award for the best PhD thesis in robotics in Europe, the 2018 IEEE RAS Early Academic Career Award, and has received an ERC Starting grant. His research interests include motor skill learning, (deep) reinforcement learning, imitation learning, interactive learning, and machine learning for control.

     

    All are welcome!
    Tel: 2859 2180

June 11, 2020
May 15, 2020
May 13, 2020
May 07, 2020



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