A Unified Semantics Space Model

Juan Ye, Lorcan Coyle, Simon Dobson, Paddy Nixon

Research output: A Conference proceeding or a Chapter in BookConference contributionpeer-review

33 Citations (Scopus)


Location-aware systems provide customised services or applications according to users’ locations. While much research has been carried out in developing models to represent location information and spatial relationships, it is usually limited to modelling simple environments (cf. [13,19,3]). This paper proposes a unified space model for more complex environments (e.g., city plan or forest). This space model provides a flexible, expressive, and powerful spatial representation. It also proposes a new data structure – an integrated lattice and graph model – to express comprehensive spatial relationships. This structure not only provides multiple graphs at different abstraction levels, but it also collapses the whole map into smaller local graphs. This mechanism is beneficial in reducing the complexity of creating and maintaining a map and improving the efficiency of path finding algorithms.
Original languageEnglish
Title of host publicationLocation- and Context-Awareness
Subtitle of host publicationThird International Symposium, LoCA 2007, Oberpfaffenhofen, Germany, September 20-21, 2007
EditorsJeffrey Hightower, Bernt Schiele, Thomas Strang
Place of PublicationGermany
Number of pages18
ISBN (Electronic)9783540751601
ISBN (Print)9783540751595
Publication statusPublished - 2007
Externally publishedYes
EventLoCA 2007: 3rd nternational Symposium on Location- and Context-Awareness - Oberpfaffenhofen, Oberpfaffenhofen, Germany
Duration: 20 Sept 200721 Sept 2007


ConferenceLoCA 2007: 3rd nternational Symposium on Location- and Context-Awareness
Abbreviated titleLOCA 2007


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