Rule-Based Reasoning about Qualitative Spatiotemporal Relations

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13 Citations (Scopus)

Abstract

This paper is about a novel rule-based approach for reasoning about qualitative spatiotemporal relations among technology-rich autonomous objects, to which we refer to as artifacts. The objective of our work is to provide means for defining spatiotemporal constraints – i.e. logical combinations of spatial relations to artifacts at certain time intervals – at a high level of abstraction, and to recognize relative situations therewith. Such constraints are defined with rules that infer high-level relationships for newly recognized situations, which in turn can be used in other constraints. At any time, the history of known relationships can be queried in order to trigger predefined actions. We decided for qualitative abstractions of both spatial and temporal relationships, as they reflect the semantics of natural language terms and thus facilitate dealing with relationships at the application programming level. The core concepts of this reasoning approach are presented, and the implementation of a middleware for spatiotemporal reasoning as well as evaluation results are discussed.
Original languageEnglish
Title of host publicationProceedings of the 5th International Workshop on Middleware for Pervasive and Ad-hoc Computing, MPAC 2007 held at the ACM/IFIP/USENIX 8th International Middleware Conference
PublisherACM Press
Pages49-54
Number of pages6
ISBN (Print)9781595939302
DOIs
Publication statusPublished - 2007
Event5th International Workshop on Middleware for Pervasive and Ad-Hoc Computing (MPAC 2007) - Newport Beach, CA, United States
Duration: 26 Nov 200730 Nov 2007
http://www.informatik.uni-trier.de/~ley/db/conf/middleware/mpac2007.html

Publication series

NameProceedings of the 5th International Workshop on Middleware for Pervasive and Ad-hoc Computing, MPAC 2007 held at the ACM/IFIP/USENIX 8th International Middleware Conference

Conference

Conference5th International Workshop on Middleware for Pervasive and Ad-Hoc Computing (MPAC 2007)
CountryUnited States
CityNewport Beach, CA
Period26.11.200730.11.2007
Internet address

Keywords

  • Qualitative representation
  • Rule-based reasoning
  • Spatial context
  • Spatiotemporal relations

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