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Social and Behavioral Sciences Commons™
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Full-Text Articles in Social and Behavioral Sciences
Visualizing Patterns In Spatially Ambiguous Point Data, Jonny Huck, Duncan Whyatt, Paul Coulton
Visualizing Patterns In Spatially Ambiguous Point Data, Jonny Huck, Duncan Whyatt, Paul Coulton
Journal of Spatial Information Science
As technologies permitting both the creation and retrieval of data containing spatial information continue to develop, so do the number of visualizations using such data. This spatial information will often comprise a place name that may be "geocoded" into coordinates, and displayed on a map, frequently using a "heatmap-style" visualization to reveal patterns in the data. Across a dataset, however, there is often ambiguity in the geographic scale to which a place-name refers (country, county, town, street etc.), and attempts to simultaneously map data at a multitude of different scales will result in the formation of "false hotspots" within the …
Knowledge Formalization For Vector Data Matching Using Belief Theory, Ana-Maria Olteanu-Raimond, Sebastien Mustière, Anne Ruas
Knowledge Formalization For Vector Data Matching Using Belief Theory, Ana-Maria Olteanu-Raimond, Sebastien Mustière, Anne Ruas
Journal of Spatial Information Science
Nowadays geographic vector data is produced both by public and private institutions using well defined specifications or crowdsourcing via Web 2.0 mapping portals. As a result, multiple representations of the same real world objects exist, without any links between these different representations. This becomes an issue when integration, updates, or multi-level analysis needs to be performed, as well as for data quality assessment. In this paper a multi-criteria data matching approach allowing the automatic definition of links between identical features is proposed. The originality of the approach is that the process is guided by an explicit representation and fusion of …
A Comparative Study Of Linear And Region Based Diagrams, Björn Gottfried
A Comparative Study Of Linear And Region Based Diagrams, Björn Gottfried
Journal of Spatial Information Science
There are two categories of objects spatial information science investigates: actual objects and their spatial properties, such as in geography, and abstract objects which are employed metaphorically, as for visual languages. A prominent example of the latter are diagrams that model knowledge of some domain. Different aspects of diagrams are of interest, including their formal properties or how human users work with them, for example, with diagrams representing sets. The literature about diagrammatic systems for the representation of sets shows a dominance of region-based diagrams like Euler circles and Venn diagrams. The effectiveness of these diagrams, however, is limited because …