Please use this identifier to cite or link to this item:
Full metadata record
DC FieldValueLanguage
dc.contributor.authorHAESEVOETS, Sofie-
dc.contributor.authorKUIJPERS, Bart-
dc.description.abstractIn spatial databases, incompatibilities often arise due to different choices of origin or unit of measurement(e.g centimeters versus inches). By representing and querying the data in an affine-invariant manner, we can avoid these incompatibilities. In practice, spatial(resp.,spatio-temporal) data is often represented as a finite union of triangles(resp.,moving triangles). As two arbitrary triangles are equal up to a unique affinity of the plane, they seem perfect candidates as basic units for an affine-invariant query language. We propose a so-called "triangle logic", a query language that is affine-generic and has triangles as basic elements. We show that this language has the same expressive power as the affine-generic fragment of first-order logic ove the reals on triangle databases. We illustrate that the proposed language is simple and intuitive. It can also serve as a first step towards a "moving-triangle logic" for spatio-temporal data.-
dc.publisherArXiv (Corr)-
dc.titleA triangle-based logic for affine-invariant querying of spatial and spatio-temporal data-
dc.typeResearch Report-
item.accessRightsOpen Access-
item.fulltextWith Fulltext-
item.fullcitationHAESEVOETS, Sofie & KUIJPERS, Bart (2008) A triangle-based logic for affine-invariant querying of spatial and spatio-temporal data.-
Appears in Collections:Research publications
Files in This Item:
File Description SizeFormat 
0810.5725v2.pdf427.76 kBAdobe PDFView/Open
Show simple item record

Page view(s)

checked on Jun 26, 2022


checked on Jun 26, 2022

Google ScholarTM


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.