Now showing items 1-10 of 10

    • Autonomous robot mapping by landmark association

      Azizzul, Z; Yeap, W (CEUR-WS.org, 2015)
      This paper shows how an indoor mobile robot equipped with a laser sensor and an odometer computes its global map by associating landmarks found in the environment. The approach developed is based on the observation that ...
    • Spatial information extraction for cognitive mapping with a mobile robot

      Schmidt, J.; Wong, C.; Yeap, W. (Springer, 2007)
      When animals (including humans) first explore a new environment, what they remember is fragmentary knowledge about the places visited. Yet, they have to use such fragmentary knowledge to find their way home. Humans naturally ...
    • Pronominal anaphora resolution using a shallow meaning representation of sentences

      Ho, H.; Min, K.; Yeap, W. (Springer, 2004)
      This paper describes a knowledge-poor anaphora resolution approach based on a shallow meaning representation of sentences. The structure afforded in such a representation provides immediate identification of local domains ...
    • The correspondence problem in topological metric mapping - using absolute metric maps to close cycles

      Jefferies, M.; Cosgrove, M.; Baker, J.; Yeap, W. (Springer, 2004)
      In Simultaneous Localisation and Mapping (SLAM) the correspondence problem, specifically detecting cycles, is one of the most difficult challenges for an autonomous mobile robot. In this paper we show how significant cycles ...
    • Using absolute metric maps to close cycles in a topological map

      Jefferies, M.; Yeap, W.; Cosgrove, M.; Baker, J. (Springer, 2005)
      In simultaneous localisation and mapping (SLAM) the correspondence problem, specifically detecting cycles, is one of the most difficult challenges for an autonomous mobile robot. In this paper we show how significant cycles ...
    • Using a mobile robot to test a theory of cognitive mapping

      Yeap, W.; Wong, C.; Schmidt, J. (Springer, 2008)
      This paper describes using a mobile robot, equipped with some sonar sensors and an odometer, to test navigation through the use of a cognitive map. The robot explores an office environment, computes a cognitive map, which ...
    • A split & merge approach to metric-topological map-building

      Schmidt, J.; Wong, C.; Yeap, W. (IEEE, 2006)
      We present a novel split and merge based method for dividing a given metric map into distinct regions, thus effectively creating a topological map on top of a metric one. The initial metric map is obtained from range data ...
    • Visualizing the meaning of texts

      Yeap, W.; Reedy, P.; Min, K.; Ho, H. (IEEE, 2005)
      We implemented SmartINFO, an experimental system for the visualization of the meaning of texts. SmartINFO consists of 4 modules: a universal grammar engine (UGE), an anaphora engine, a concept engine and a visualization ...
    • Computing a network of ASRs using a mobile robot equipped with sonar sensors

      Wong, C.; Yeap, W.; Schmidt, J. (IEEE, 2006)
      This paper presents a novel algorithm for computing absolute space representations (ASRs) [1]-[2] for mobile robots equipped with sonar sensors and an odometer. The robot is allowed to wander freely (i.e. without following ...
    • From spatial perception to cognitive mapping: how is the flow of information controlled?

      Yeap, W. (AAAI, 2007)
      Most models of cognitive mapping would suggest that the process begins by constructing some form of a structural representation of the environment visited. From the latter representation, one develops a conceptual view of ...