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Träfflista för sökning "L773:9783642238079 OR L773:9783642238086 "

Search: L773:9783642238079 OR L773:9783642238086

  • Result 1-2 of 2
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1.
  • Vrotsou, Katerina, et al. (author)
  • Exploring City Structure from Georeferenced Photos Using Graph Centrality Measures
  • 2011
  • In: Machine Learning and Knowledge Discovery in Databases. - Berlin, Heidelberg : Springer. - 9783642238079 - 9783642238086 ; , s. 654-657
  • Book chapter (peer-reviewed)abstract
    • We explore the potential of applying graph theory measures of centrality to the network of movements extracted from sequences of georeferenced photo captures in order to identify interesting places and explore city structure. We adopt a systematic procedure composed of a series of stages involving the combination of computational methods and interactive visual analytics techniques. The approach is demonstrated using a collection of Flickr photos from the Seattle metropolitan area.
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2.
  • Rothkopf, C.A., et al. (author)
  • Preference elicitation and inverse reinforcement learning
  • 2011
  • In: Machine Learning and Knowledge Discovery in Databases, ECML 2011. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 9783642238079
  • Conference paper (peer-reviewed)abstract
    • We state the problem of inverse reinforcement learning in terms of preference elicitation, resulting in a principled (Bayesian) statistical formulation. This generalises previous work on Bayesian inverse reinforcement learning and allows us to obtain a posterior distribution on the agent's preferences, policy and optionally, the obtained reward sequence, from observations. We examine the relation of the resulting approach to other statistical methods for inverse reinforcement learning via analysis and experimental results. We show that preferences can be determined accurately, even if the observed agent's policy is sub-optimal with respect to its own preferences. In that case, significantly improved policies with respect to the agent's preferences are obtained, compared to both other methods and to the performance of the demonstrated policy. © 2011 Springer-Verlag.
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  • Result 1-2 of 2
Type of publication
conference paper (1)
book chapter (1)
Type of content
peer-reviewed (2)
Author/Editor
Vrotsou, Katerina (1)
Andrienko, Gennady (1)
Andrienko, Natalia (1)
Dimitrakakis, Christ ... (1)
Jankowski, Piotr (1)
Rothkopf, C.A. (1)
University
Linköping University (1)
Chalmers University of Technology (1)
Language
English (2)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2011 (2)

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