[PDF] Top 20 Reasoning about topological and cardinal direction relations between 2-dimensional spatial objects

... represents spatial information by introducing a relation model on the domain of spatial entities, which could be points, line segments, rectangles, or arbitrary ...(JEPD) relations defined on the ... See full document

... [1, 2] cardinal direction relations model and Freksa’s [10] orientation model to facilitate a more expressive reasoning ...infer spatial relations from integrated ... See full document

... and reasoning. The results of studies on direction relations in 2D space are relatively ...The cardinal direction in 3D space has become a hot and difficult topic with the development ... See full document

... RCC-8 relations from CORE-9 and the relations of a qualitative direction calculus such as the Cardinal Direction Calculus (CDC) (Ligozat ...by direction, i.e., from which ... See full document

... Orientation relations in this work are represented as object properties between OWL objects representing spatial ...for cardinal directional relations, as part of the SOWL ... See full document

... entries. Topological relations, however, have been only weakly researched for grounding integrity constraints on spatial objects in spatial databases ...of spatial data models in ... See full document

... tion relations between two separated object groups in 2- dimensional ...compute direction relations between object groups, which the other models can not; (2) it ... See full document

... Qualitative spatial calculi for topological aspects ...and cardinal direction ...binary relations (“contained-in” or “north-of”) to express spatial knowledge and the de- fined ... See full document

... of spatial information such as spatial relationships that can be topological, metric or ...and reasoning and provides an effective way to spatial data ...Moreover, spatial data ... See full document

... classify spatial relations according to three geometric categories: topological, projective, and metric, which are based on the properties of the topological, projective, and Euclidean space, ... See full document

... inferences about spatial relations between ...of cardinal direction relations of points [6], [7], [13] which is more suitable for describing positions of point-like ... See full document

... Modelling spatial relations among objects of visual scenes is greatly of benefit to visual applications ...of spatial relations allows the action of reasoning on semantically ... See full document

... all spatial relationships must be computed from geographic databases and transformed to first-order ...authors about their proposed method a lot of knowledge is required from the data mining ...dependence ... See full document

... This report is used by the observing unit to give basic initial and follow-up data about an NBC attack. It is sent by platoons and companies to battalion headquarters. Battalion and higher elements must ... See full document

... The generalized regular and singular cell complexes, the construction/reconstruction operators and the extended cell-tuple representation form the foundation of a simple, implicit topolo[r] ... See full document

... of spatial information – as opposed to the „explicit‟ grasp of it that would have come with conscious visual awareness of spatial location – was not enough on its own to enable the veridical binding of ... See full document

... Shepard and Chipman’s second order isomorphism de- scribes how the brain may represent the relations in the world. However, a common interpretation of the theory can cause difficulties. The problem originates from ... See full document

... is spatial data mining ...for spatial data using the geography; they may be due to remote sensing, global positioning system ...characteristics between spatial data and the non- spatial ... See full document

... This paper surveys on various traditional recommendation techniques used in an e learning platform and also considered their advantages and limitations. A recommender system tries to intelligently recommend actions that ... See full document

... remarks about commonsense spatial knowledge match with the basic assumptions on which this approach to commonsense spatial reasoning has been introduced in the Pervasive Computing ...addresses ... See full document