Abstract of FKI-164-92

Document-Name:  fki-164-92.ps.gz
Title:          Diagrammatical Aspects of Qualitative Representations of Space
Authors:        Daniel Hernandez 
Revision-Date:  1992/03/19 
Category:       Technical Report (Forschungsberichte Künstliche Intelligenz)
Abstract:       In this paper we demonstrate the usefulness of the
                diagrammatical aspects of a qualitative representation
                of positions in 2-D space (Hernandez:1991).
                Qualitative representations make only as many
                distinctions as necessary to identify objects, events,
                situations, etc. in a given context (identification
                task) as opposed to those needed to fully reconstruct
                a situation (reconstruction task).  While the
                distinctions made are expressed propositionally in
                form of relations, we use data structures that
                analogically reflect the structure of the relational
                domain on a higher level of abstraction.  This
                representation allows to perform operations such as a
                change in point of view or the composition of
                relations efficiently.
Keywords:       representation of spatial knowledge, qualitative,
                diagrammatical, analogical, propositional.
Size:           10 pages
Language:       English
ISSN:           0941-6358
Copyright:      The ``Forschungsberichte Künstliche Intelligenz''
                series includes primarily preliminary publications,
                specialized partial results, and supplementary
                material. In the interest of a subsequent final
                publication these reports should not be copied. All
                rights and the responsability for the contents of the
                report are with the authors, which would appreciate
                critical comments.


Gerhard Weiss