TY  - JOUR
A1  - Schiffer, Stefan
A1  - Ferrein, Alexander
T1  - Decision-Theoretic Planning with Fuzzy Notions in GOLOG
JF  - International Journal of Uncertainty, Fuzziness and Knowledge-Based Systems
N2  - In this paper we present an extension of the action language Golog that allows for using fuzzy notions in non-deterministic argument choices and the reward function in decision-theoretic planning. Often, in decision-theoretic planning, it is cumbersome to specify the set of values to pick from in the non-deterministic-choice-of-argument statement. Also, even for domain experts, it is not always easy to specify a reward function. Instead of providing a finite domain for values in the non-deterministic-choice-of-argument statement in Golog, we now allow for stating the argument domain by simply providing a formula over linguistic terms and fuzzy uents. In Golog’s forward-search DT planning algorithm, these formulas are evaluated in order to find the agent’s optimal policy. We illustrate this in the Diner Domain where the agent needs to calculate the optimal serving order.
Y1  - 2016
U6  - https://doi.org/10.1142/S0218488516400134
SN  - 1793-6411
VL  - 24
IS  - Issue Suppl. 2
SP  - 123
EP  - 143
PB  - World Scientific
CY  - Singapur
ER  - 
TY  - CHAP
A1  - Rens, Gavin
A1  - Ferrein, Alexander
A1  - Poel, Etienne van der
T1  - Extending DTGolog to deal with POMD-Ps
T2  - Proceedings of the Nineteenth Annual Symposium of the Pattern Recognition Association of South Africa (PRASA 2008)
Y1  - 2008
SP  - 49
EP  - 54
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Steinbauer, Gerald
T1  - The Interplay of Aldebaran and RoboCup
JF  - KI - Künstliche Intelligenz
Y1  - 2016
U6  - https://doi.org/10.1007/s13218-016-0440-1
SN  - 1610-1987
VL  - 30
IS  - 3-4
SP  - 325
EP  - 326
PB  - Springer
CY  - Berlin
ER  - 
TY  - CHAP
A1  - Viehmann, Tarik
A1  - Limpert, Nicolas
A1  - Hofmann, Till
A1  - Henning, Mike
A1  - Ferrein, Alexander
A1  - Lakemeyer, Gerhard
ED  - Eguchi, Amy
ED  - Lau, Nuno
ED  - Paetzel-Prüsmann, Maike
ED  - Wanichanon, Thanapat
T1  - Winning the RoboCup logistics league with visual servoing and centralized goal reasoning
T2  - RoboCup 2022: Robot World Cup XXV
N2  - The RoboCup Logistics League (RCLL) is a robotics competition in a production logistics scenario in the context of a Smart Factory. In the competition, a team of three robots needs to assemble products to fulfill various orders that are requested online during the game. This year, the Carologistics team was able to win the competition with a new approach to multi-agent coordination as well as significant changes to the robot’s perception unit and a pragmatic network setup using the cellular network instead of WiFi. In this paper, we describe the major components of our approach with a focus on the changes compared to the last physical competition in 2019.
Y1  - 2023
SN  - 978-3-031-28468-7 (Print)
SN  - 978-3-031-28469-4 (Online)
U6  - https://doi.org/https://doi.org/10.1007/978-3-031-28469-4_25
N1  - Robot World Cup, RoboCup 2022. 17. July 2023. Bangkok, Thailand.

Part of the Lecture Notes in Computer Science book series (LNAI,volume 13561)
SP  - 300
EP  - 312
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Rebel, Sören
A1  - Hüning, Felix
A1  - Scholl, Ingrid
A1  - Ferrein, Alexander
T1  - MQOne: Low-cost design for a rugged-terrain robot platform
T2  - Intelligent robotics and applications : 8th International Conference, ICIRA 2015, Portsmouth, UK, August 24-27, 2015, Proceedings, Part II (Lecture notes in computer science : vol. 9245)
N2  - Rugged terrain robot designs are important for field robotics missions. A number of commercial platforms are available, however, at an impressive price. In this paper, we describe the hardware and software component of a low-cost wheeled rugged-terrain robot. The robot is based on an electric children quad bike and is modified to be driven by wire. In terms of climbing properties, operation time and payload it can compete with some of the commercially available platforms, but at a far lower price.
Y1  - 2015
SN  - 978-3-319-22875-4 (print) ; 978-3-319-22876-1 (E-Book)
U6  - https://doi.org/10.1007/978-3-319-22876-1_19
SP  - 209
EP  - 221
PB  - Springer
CY  - Cham
ER  - 
TY  - CHAP
A1  - Nikolovski, Gjorgji
A1  - Limpert, Nicolas
A1  - Nessau, Hendrik
A1  - Reke, Michael
A1  - Ferrein, Alexander
T1  - Model-predictive control with parallelised optimisation for the navigation of autonomous mining vehicles
T2  - 2023 IEEE Intelligent Vehicles Symposium (IV)
N2  - The work in modern open-pit and underground mines requires the transportation of large amounts of resources between fixed points. The navigation to these fixed points is a repetitive task that can be automated. The challenge in automating the navigation of vehicles commonly used in mines is the systemic properties of such vehicles. Many mining vehicles, such as the one we have used in the research for this paper, use steering systems with an articulated joint bending the vehicle’s drive axis to change its course and a hydraulic drive system to actuate axial drive components or the movements of tippers if available. To address the difficulties of controlling such a vehicle, we present a model-predictive approach for controlling the vehicle. While the control optimisation based on a parallel error minimisation of the predicted state has already been established in the past, we provide insight into the design and implementation of an MPC for an articulated mining vehicle and show the results of real-world experiments in an open-pit mine environment.
KW  - Mpc
KW  - Control
KW  - Path-following
KW  - Navigation
KW  - Automation
Y1  - 2023
SN  - 979-8-3503-4691-6 (Online)
SN  - 979-8-3503-4692-3 (Print)
U6  - https://doi.org/10.1109/IV55152.2023.10186806
N1  - IEEE Symposium on Intelligent Vehicle, 4.-7. June 2023, Anchorage, AK, USA.
PB  - IEEE
ER  - 
TY  - JOUR
A1  - Ferrein, Alexander
A1  - Dylla, Frank
A1  - Lakemeyer, Gerhard
A1  - Murray, Jan
T1  - Approaching a formal soccer theory from behaviour specifications in robotic soccer / Dylla, Frank ; Ferrein, Alexander ; Lakemeyer, Gerhard ; Murray, Jan ; Obst, Oliver ; Röfer, Thomas ; Schiffer, Stefan ; Stolzenburg, Frieder ; Visser, Ubbo ; Wagner, Tho
JF  - Computers in sport / editors: P Dabnichki
Y1  - 2008
SN  - 978-1-8456-4064-4
SP  - 161
EP  - 185
PB  - WIT Press
CY  - Southampton
ER  - 
TY  - JOUR
A1  - Booysen, Tracy
A1  - Rieger, Michael
A1  - Ferrein, Alexander
T1  - Towards inexpensive robots for science & technology teaching and education in Africa
Y1  - 2011
SN  - 978-1-61284-992-8
N1  - AFRICON, 2011
SP  - 1
EP  - 6
PB  - IEEE
CY  - New York
ER  - 
TY  - CHAP
A1  - Ferrein, Alexander
A1  - Maier, Christopher
A1  - Mühlbacher, Clemens
A1  - Niemueller, Tim
A1  - Steinbauer, Gerald
A1  - Vassos, Stravros
T1  - Controlling Logistics Robots with the Action-based Language YAGI
T2  - Proceedings of the 2015 IROS Workshop on Workshop on Task Planning for Intelligent Robots in Service and Manufacturing
Y1  - 2015
ER  - 
TY  - JOUR
A1  - Gspandl, Stephan
A1  - Pill, Ingo
A1  - Reip, Michael
A1  - Steinbauer, Gerald
A1  - Ferrein, Alexander
T1  - Belief Management for High-Level Robot Programs
JF  - Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence [electronic resource] : Barcelona, Catalonia, Spain, 16 - 22 July 2011 / sponsored by International Joint Conferences on Artificial Intelligence (IJCAI) and the Association for the Advancement of Artificial Intelligence (AAAI). Ed. by Toby Walsh
Y1  - 2011
N1  - International Joint Conference on Artificial Intelligence ; (22 : ; 2011.07.16-22 : ; Barcelona, Spain) ; IJCAI ; (22 : ; 2011.07.16-22 : ; Barcelona, Spain)
SP  - 900
EP  - 905
ER  -