---
abstract: 'We present an approach to spatial reasoning that is based on homogenous coordinate systems and their transformations. In contrast to qualitative approaches, spatial relations are not represented by symbolic expressions only but additionally by parameters with constraints, which are subsets of real numbers. Our work is based on the notion of mental models in text understanding introduced in cognitive science. That is, we model the understanding of descriptions of spatial configurations by constructing a representation of the class of situations that are compatible with the description. Within our approach a spatial relation between two objects is represented by constraining the position of one of the objects with respect to the reference frame of the other one. That is, inferences of spatial relations not given explicitly in a text depend on the frame of reference which is presumed by the (human or computer) system. In this paper we describe a general framework for spatial reasoning based on the notion of mental models and we present some empirical results concerning the influence of the selected reference frame on the inference process.'
altloc:
  - http://ki.cs.tu-berlin.de/~schmid/pub-ps/trierpaper-lv.ps
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creators_name:
  - family: Claus
    given: Berry
    honourific: ''
    lineage: ''
  - family: Eyferth
    given: Klaus
    honourific: ''
    lineage: ''
  - family: Gips
    given: Carsten
    honourific: ''
    lineage: ''
  - family: Hörnig
    given: Robin
    honourific: ''
    lineage: ''
  - family: Schmid
    given: Ute
    honourific: ''
    lineage: ''
  - family: Wiebrock
    given: Sylvia
    honourific: ''
    lineage: ''
  - family: Wysotzki
    given: Fritz
    honourific: ''
    lineage: ''
date: 1998
date_type: published
datestamp: 1998-07-01
department: ~
dir: disk0/00/00/04/85
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editors_id: []
editors_name:
  - family: Freksa
    given: Christian
    honourific: ''
    lineage: ''
  - family: Habel
    given: Christopher
    honourific: ''
    lineage: ''
  - family: Wender
    given: Karl-Friedrich
    honourific: ''
    lineage: ''
eprint_status: archive
eprintid: 485
fileinfo: /style/images/fileicons/application_postscript.png;/485/2/trierpapier%2Dlv.ps
full_text_status: public
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ispublished: pub
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item_issues_comment: []
item_issues_count: 0
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keywords: 'text understanding, mental models, spatial inference, constraint satisfaction, transformation matrices'
lastmod: 2011-03-11 08:53:59
latitude: ~
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metadata_visibility: show
note: ~
number: ~
pagerange: 241-266
pubdom: FALSE
publication: 'Spatial Cognition - An interdisciplinary approach to representing and processing spatial knowledge'
publisher: 'Springer, Berlin'
refereed: FALSE
referencetext: ~
relation_type: []
relation_uri: []
reportno: ~
rev_number: 10
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source: ~
status_changed: 2007-09-12 16:28:49
subjects:
  - cog-psy
  - comp-sci-art-intel
  - comp-sci-art-intel
  - psy-ling
succeeds: ~
suggestions: ~
sword_depositor: ~
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thesistype: ~
title: Reference Frames for Spatial Inference in Text Understanding
type: bookchapter
userid: 453
volume: ~
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