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| 2. |
- Hawes, Nick, et al.
(författare)
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Dora The Explorer : A Motivated Robot
- 2009
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Ingår i: Proc. of 9th Int. Conf. on Autonomous Agents and Multiagent Systems (AAMAS 2010). ; , s. 1617-1618
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Konferensbidrag (refereegranskat)abstract
- Dora the Explorer is a mobile robot with a sense of curios- ity and a drive to explore its world. Given an incomplete tour of an indoor environment, Dora is driven by internal motivations to probe the gaps in her spatial knowledge. She actively explores regions of space which she hasn't previously visited but which she expects will lead her to further unex- plored space. She will also attempt to determine the cate- gories of rooms through active visual search for functionally important objects, and through ontology-driven inference on the results of this search.
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| 3. |
- Hawes, Nick, et al.
(författare)
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Planning and Acting with an Integrated Sense of Space
- 2009
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Ingår i: Proceedings of the 1st International Workshop on Hybrid Control of Autonomous Systems.
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Konferensbidrag (refereegranskat)abstract
- The paper describes PECAS, an architecture for intelligent systems, and its application in the Explorer, an interactive mobile robot. PECAS is a new architectural combination of information fusion and continual planning. PECAS plans, integrates and monitors the asynchronous flow of information between multiple concurrent systems. Information fusion provides a suitable intermediary to robustly couple the various reactive and deliberative forms of processing used concurrently in the Explorer. The Explorer instantiates PECAS around a hybrid spatial model combining SLAM, visual search, and conceptual inference. This paper describes the elements of this model, and demonstrates on an implemented scenario how PECAS provides means for flexible control.
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| 4. |
- Kleiner, Alexander, et al.
(författare)
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ResQ Freiburg : Team Description and Evaluation
- 2005
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- ResQ Freiburg is the world champion of the 2004 RoboCup competition in the Rescue simulation league. RoboCupRescue is a large-scale multi-agent simulation of urban disasters where, in order to save lives and minimize damage, rescue teams must effectively cooperate despite sensing and communication limitations. To accomplish this, ResQ Freiburg introduced new methods for hierarchical path planning, death-time prediction of civilians, coordination of multi-agent city exploration, as well as an any-time rescue sequence optimization based on genetic algorithms. To evaluate the usefulness of these techniques we performed an extensive evaluation of the log files of the best participating teams in the competition. Our analysis explains the reasons for our team’s success, and thus could also provide an evaluation tool for future competitions.
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| 5. |
- Kleiner, Alexander, et al.
(författare)
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Successful Search and Rescue in Simulated Disaster Areas
- 2005
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Ingår i: <em>Robocup 2005: Robot Soccer World Cup IX</em>. ; , s. 323-334
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Konferensbidrag (refereegranskat)abstract
- RoboCupRescue Simulation is a large-scale multi-agent simulation of urban disasters where, in order to save lives and minimize damage, rescue teams must effectively cooperate despite sensing and communication limitations. This paper presents the comprehensive search and rescue approach of the ResQ Freiburg team, the winner in the RoboCupRescue Simulation league at RoboCup 2004. Specific contributions include the predictions of travel costs and civilian life-time, the efficient coordination of an active disaster space exploration, as well as an any-time rescue sequence optimization based on a genetic algorithm. We compare the performances of our team and others in terms of their capability of extinguishing fires, freeing roads from debris, disaster space exploration, and civilian rescue. The evaluation is carried out with information extracted from simulation log files gathered during RoboCup 2004. Our results clearly explain the success of our team, and also confirm the scientific approaches proposed in this paper.
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| 6. |
- Wilzbach, Marco, et al.
(författare)
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Detecting neutral atoms on an atom chip
- 2006
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Ingår i: Fortschritte der Physik. - : Wiley-VCH Verlagsgesellschaft. - 0015-8208 .- 1521-3978. ; 54:8-10, s. 746-764
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Tidskriftsartikel (refereegranskat)abstract
- Detecting single atoms (qubits) is a key requirement for implementing quantum information processing on an atom chip. The detector should ideally be integrated on the chip. Here we present and compare different methods capable of detecting neutral atoms on an atom chip. After a short introduction to fluorescence and absorption detection we discuss cavity enhanced detection of single atoms. In particular we concentrate on optical fiber based detectors such as fiber cavities and tapered fiber dipole traps. We discuss the various constraints in building such detectors in detail along with the current implementations on atom chips. Results from experimental tests of fiber integration are also described. In addition we present a pilot experiment for atom detection using a concentric cavity to verify the required scaling.
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