Sciweavers

25 search results - page 3 / 5
» Formal Properties of Constraint Calculi for Qualitative Spat...
Sort
View
GIS
2006
ACM
13 years 4 months ago
Qualitative polyline similarity testing with applications to query-by-sketch, indexing and classification
We present an algorithm for polyline (and polygon) similarity testing that is based on the double-cross formalism. To determine the degree of similarity between two polylines, the...
Bart Kuijpers, Bart Moelans, Nico Van de Weghe
AAAI
2004
13 years 6 months ago
Spatial Aggregation for Qualitative Assessment of Scientific Computations
Qualitative assessment of scientific computations is an emerging application area that applies a data-driven approach to characterize, at a high level, phenomena including conditi...
Chris Bailey-Kellogg, Naren Ramakrishnan
LPAR
2010
Springer
13 years 3 months ago
A Syntactical Approach to Qualitative Constraint Networks Merging
We address the problem of merging qualitative constraint networks (QCNs) representing agents local preferences or beliefs on the relative position of spatial or temporal entities. ...
Jean-François Condotta, Souhila Kaci, Pierr...
LICS
2010
IEEE
13 years 3 months ago
Weak Equivalences in Psi-Calculi
Psi-calculi extend the pi-calculus with nominal datatypes to represent data, communication channels, and logics for facts and conditions. This general framework admits highly expr...
Magnus Johansson, Jesper Bengtson, Joachim Parrow,...
AI
2005
Springer
13 years 4 months ago
On the consistency of cardinal direction constraints
We present a formal model for qualitative spatial reasoning with cardinal directions utilizing a co-ordinate system. Then, we study the problem of checking the consistency of a se...
Spiros Skiadopoulos, Manolis Koubarakis