{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,6]],"date-time":"2026-03-06T14:07:12Z","timestamp":1772806032750,"version":"3.50.1"},"reference-count":3,"publisher":"World Scientific Pub Co Pte Lt","issue":"03","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Int. J. Artif. Intell. Tools"],"published-print":{"date-parts":[[2008,6]]},"abstract":"<jats:p> The representation of the surrounding world plays an important role in robot navigation, especially when reinforcement learning is applied. This work uses a qualitative abstraction mechanism to create a representation of space consisting of the circular order of detected landmarks and the relative position of walls towards the agent's moving direction. The use of this representation does not only empower the agent to learn a certain goal-directed navigation strategy faster compared to metrical representations, but also facilitates reusing structural knowledge of the world at different locations within the same environment. Acquired policies are also applicable in scenarios with different metrics and corridor angles. Furthermore, gained structural knowledge can be separated, leading to a generally sensible navigation behavior that can be transferred to environments lacking landmark information and\/or totally unknown environments. <\/jats:p>","DOI":"10.1142\/s021821300800400x","type":"journal-article","created":{"date-parts":[[2008,6,24]],"date-time":"2008-06-24T05:38:40Z","timestamp":1214285920000},"page":"465-482","source":"Crossref","is-referenced-by-count":9,"title":["LEARNING TO BEHAVE IN SPACE: A QUALITATIVE SPATIAL REPRESENTATION FOR ROBOT NAVIGATION WITH REINFORCEMENT LEARNING"],"prefix":"10.1142","volume":"17","author":[{"given":"LUTZ","family":"FROMMBERGER","sequence":"first","affiliation":[{"name":"SFB\/TR8 Spatial Cognition, Project R3-[Q-Shape], Universit\u00e4t Bremen, Enrique-Schmidt-Str. 5, 28359 Bremen, Germany"}]}],"member":"219","published-online":{"date-parts":[[2011,11,21]]},"reference":[{"key":"rf4","doi-asserted-by":"publisher","DOI":"10.1007\/s00521-003-0385-9"},{"key":"rf10","doi-asserted-by":"publisher","DOI":"10.1016\/S0004-3702(00)00017-5"},{"key":"rf14","first-page":"45","volume":"7","author":"Whitehead S. D.","journal-title":"Machine Learning"}],"container-title":["International Journal on Artificial Intelligence Tools"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.worldscientific.com\/doi\/pdf\/10.1142\/S021821300800400X","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,8,7]],"date-time":"2019-08-07T13:09:57Z","timestamp":1565183397000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.worldscientific.com\/doi\/abs\/10.1142\/S021821300800400X"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2008,6]]},"references-count":3,"journal-issue":{"issue":"03","published-online":{"date-parts":[[2011,11,21]]},"published-print":{"date-parts":[[2008,6]]}},"alternative-id":["10.1142\/S021821300800400X"],"URL":"https:\/\/doi.org\/10.1142\/s021821300800400x","relation":{},"ISSN":["0218-2130","1793-6349"],"issn-type":[{"value":"0218-2130","type":"print"},{"value":"1793-6349","type":"electronic"}],"subject":[],"published":{"date-parts":[[2008,6]]}}}