Please use this identifier to cite or link to this item:
|Title:||An object model with parametric polymorphism for dynamic segmentation|
|Citation:||Huang, B. (2003-06). An object model with parametric polymorphism for dynamic segmentation. International Journal of Geographical Information Science 17 (4) : 343-360. ScholarBank@NUS Repository. https://doi.org/10.1080/1365881031000072654|
|Abstract:||Dynamic segmentation is commonly viewed as one of the most effective aspects of GIS for transportation applications. To date, much of this effort has focused on relational data models, with object data models receiving far less attention. This paper presents an object model that provides a natural representation of dynamically segmented features by extending the Object Database Management Group (ODMG) standard with a special mechanism, called parametric polymorphism. This mechanism supports the shifting of a conventional data type into a linear type to maintain knowledge about events (e.g. pavement condition, traffic volumes and traffic accidents) that change spatially along linear features. An associated object query language unavailable in current GIS packages is also provided for data analyes relevant to dynamic segmentation. The model and query language have been implemented using an object-oriented scripting language in a GIS environment.|
|Source Title:||International Journal of Geographical Information Science|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Jun 22, 2018
WEB OF SCIENCETM
checked on May 22, 2018
checked on Jun 1, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.