Papers

2016

Billy Okal and Kai O. Arras;
Formalizing Normative Robot Behavior,
International Conference on Social Robotics (ICSR), Kansas, USA, 2016, to appear
[  PDF  |  BIB  |  Code  ]

Billy Okal and Kai O. Arras;
Practical Bayesian Inverse Reinforcement Learning for Robot Navigation,
European Conference on Machine Learning and Principles and Practise of Knowledge Discovery (ECML-PKDD), Riva del Garda, Italy, 2016
DOI  |  BIB  |  Code  ]

Billy Okal, Rudolph Triebel and Kai O. Arras;
Real-time Social Activity Detection for Mobile Service Robots,
IEEE International Symposium on Robot and Human Interactive Communication (RO-MAN), New York, USA, 2016
[  PDF  |  BIB  |  Code  ]

Billy Okal and Kai O. Arras;
Learning Socially Normative Robot Navigation Behaviors using Bayesian Inverse Reinforcement Learning,
IEEE International Conference on Robotics and Automation (ICRA), Stockholm, Sweden, 2016
DOI  |  BIB  |  Code  ]

2015

Billy Okal, Timm Linder, Luigi Palmieri and Kai O. Arras;
A Socially Aware Passenger Guidance Robot: Tracking, Learning, Planning,
IEEE/RSJ IROS Workshop on Social Norms in Robotics and HRI, Hamburg, Germany, 2015
[  PDF  |  BIB   ]

Billy Okal, Hugo Gilbert and Kai O. Arras;
Efficient Inverse Reinforcement Learning using Adaptive State-Graphs,
In Robotics: Science and Systems (RSS), Workshop on Learning from Demonstration: Inverse optimal control, Reinforcement learning and Lifelong learning, Rome, Italy, 2015
PDF  |  BIB  |  Code   ]

Rudolph Triebel, Kai Arras, Rachid Alami , Lucas Beyer, Stefan Breuers, Raja Chatila, Mohamed Chetouani, Daniel Cremers, Vanessa Evers, Michelangelo Fiore, Hayley Hung, Omar A. Islas Ramirez, Michiel Joosse, Harmish Khambhaita, Tomasz Kucner, Bastian Leibe, Achim J. Lilienthal, Timm Linder, Manja Lohse, Martin Magnusson, Billy Okal, Luigi Palmieri, Umer Rafi, Marieke van Rooij and Lu Zhang;
SPENCER: A Socially Aware Service Robot for Passenger Guidance and Help in Busy Airports,
Field and Service Robotics (FSR), Toronto, Canada, 2015
PDF  |  BIB  ]

2014

Dizan Vasquez, Billy Okal and Kai O. Arras;
Inverse Reinforcement Learning Algorithms and Features for Robot Navigation in Crowds: an experimental comparison,
IEEE/RSJ Int. Conference on Intelligent Robots and Systems (IROS), Chicago, USA, 2014
PDF  |  BIB  ]

Billy Okal and Kai O. Arras;
Towards Group-Level Social Activity Recognition for Mobile Robots,
Assistance and Service Robotics in a Human Environment workshop at IEEE/RSJ Int. Conference on Intelligent Robots and Systems (IROS), Chicago, USA, 2014,
PDF  |  BIB  ]

2013

Billy Okal and Andreas Nüechter;
Sliced Curvature Scale Space for Representing and Recognizing 3D objects,
IEEE International Conference on Advanced Robotics (ICAR), Montevideo, Uruguay, 2013,
PDF  ]

2012 and earlier

Girum Demisse, Razvan Mihalyi, Billy Okal, Dev Poudel, Johannes Schauer and Andreas Nüechter;
Mixed Palletizing and Task Completion for Virtual Warehouses,
Virtual Manufacturing and Automation Competition (VMAC) Workshop at the Int. Conference of Robotics and Automation (ICRA), St. Paul MN, USA, 2012,
PDF  |  We won the competition!  |  Announcement VIDEO  ]

Billy Okal and Oliver Dunkley;
Development of a Cheap Chess Robot: Planning and Perception,
Informatiktage, Fachwissenschaftlicher Informatik-Kongress, Springer Lecture Notes in Informatics, Bonn, Germany, 2012,
PDF  |  Poster PDF  |  Code   |   Videos  ]
Theses
Multi-scale Representation and Recognition of 3D Objects
Master of Science (M.Sc.), Computer Science (fomerly Smart Systems)
Jacobs University. Bremen, May 2013. [  PDF  ]

A Cheap Chess Robot: Planning and Perception
Bachelor of Science (B.Sc.), Electrical Engineering and Computer Science (EECS)
Jacobs University. Bremen, May 2011. [  PDF  |  Code   |   Videos  ]