M. Erwig and M. Schneider, `Vague regions', in 5th International Symposium on Advances in Spatial Databases (SSD'97), number 1262 in Lecture Notes in Computer Science, pp. 298--320, (1997). Home/Search Document Details and Download
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Granulation for Graphs - Stell (1999) (2 citations) (Correct)
....can be used to represent subsets of X at the lower level of detail induced by the partition. The truth values are now interpreted as wholly in the subset , partly in the subset , and not in the subset . The question of what should be meant by a vague graph was raised by Erwig and Schneider [ES97b] Although there have been some studies of fuzzy graphs [N 90] the question does not seem to have been examined in the particular context of spatial information. In view of the relationship between vagueness and granularity for sets, it is helpful to study vague graphs at the same time as we ....
M. Erwig and M. Schneider. Vague regions. In M. Scholl and A. Voisard, editors, 5th International Symposium on Advances in Spatial Databases (SSD'97), volume 1262 of Lecture Notes in Computer Science, pages 298--320. Springer-Verlag, 1997.
Imprecision in Finite Resolution Spatial Data - Worboys (1997) (18 citations) (Correct)
....of the paper have shown how different representations of the same object may be handled in a space of multiple resolutions. This section discusses some of the properties of the spatial relationships between different objects. There is little in the literature on this topic, although a recent paper [8] contains some similar underlying ideas to those set out below, but in a different formal framework. As usual, let S be a set, and R be a resolution space on S. We assume throughout this section that all objects under discussion are R generic, and therefore represented at best possible precision ....
M. Erwig, and M. Schneider. Vague regions. In Proceedings of the 5th Int. Symp. in Spatial Databases (SSD'97), Lecture Notes in Computer Science 1262, Springer, Berlin, pp. 298-320, 1997.
Geologic Hypermaps are more than Clickable Maps! - Voisard (Correct)
....the accuracy of the values measured at the drilling points cannot be taken as granted. ffl On the geometry. Between areas are fuzzy borders. This induces a fuzziness in the geometry of geo objects. This topic is out of the scope of this paper. Approaches such as the vague regions described in [8] are good candidates to handle this problem. ffl On geo objects in general. In addition, a map covering a large area is composed of many submaps. This asks for seamless integration of data sheets. This is a complex requirements as map providers do not necessary agree on coordinates of geospatial ....
M. Erwig and M. Schneider. Vague regions. In Advances in Spatial Databases, Lecture Notes in Computer Science, volume 1262, pages 223--238, Heidelberg /Berlin/New York, 1997. Springer Verlag.
Metric Operations on Fuzzy Spatial Objects in Databases - Schneider (2000) (1 citation) Self-citation (Schneider) (Correct)
....some desired properties of fuzzy regions and also discuss some differences in comparison with crisp regions. After that, we informally outline a data type for fuzzy regions. 3.2. 1 Generalization of Crisp to Fuzzy Regions A very general model defines a crisp region as a regular closed set [5, 6, 7] in the Euclidean space IR 2 . This model is closed under (appropriately defined) geometric union, intersection, and difference. Similar to the generalization of crisp sets to fuzzy sets, we strive for a generalization of crisp regions to fuzzy regions on the basis of the point set paradigm and ....
M. Erwig and M. Schneider. Vague Regions. In 5th Int. Symp. on Advances in Spatial Databases, LNCS 1262, pages 298--320. Springer-Verlag, 1997.
The Honeycomb Model of Spatio-Temporal Partitions - Erwig, Schneider (1999) (1 citation) Self-citation (Erwig Schneider) (Correct)
.... ST ) we obtain a two dimensional spatial partition in which regions labeled with singleton sets like ffagg give regions that have not changed during the considered time interval, whereas labels ffag; fbg; fa; bgg indicate regions that do have changed (from fag to fbg) In the terminology of [7] the former regions correspond to the kernel and the latter to the boundary of a vague region. 6 Conclusions We have investigated dynamically changing maps; in particular, we have identified and generalized operations that are of practical interest. Moreover, by formally defining spatio temporal ....
M. Erwig and M. Schneider. Vague Regions. In 5th Int. Symp. on Advances in Spatial Databases, LNCS 1262, pages 298--320, 1997.
A Taxonomy for Spatial Vagueness - An Alternative Egg-Yolk.. - Hazarika, Cohn (Correct)
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M. Erwig and M. Schneider, `Vague regions', in 5th International Symposium on Advances in Spatial Databases (SSD'97), number 1262 in Lecture Notes in Computer Science, pp. 298--320, (1997).
Computation With Imprecise Geospatial Data - Worboys (1998) (8 citations) (Correct)
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M. Erwig, and M. Schneider. Vague regions. In Proceedings of the 5th Int. Symp. in Spatial Databases (SSD'97), Lecture Notes in Computer Science 1262, Springer, Berlin, pp. 298-320, 1997.
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