Road Networks and Their Incomplete Representation by Network Data Models
Road Networks and Their Incomplete Representation by Network Data Models
复制标题
道路网络及其网络数据模型的不完整表示
DOI：
10.1007/978-3-540-87473-7_19
复制
发表时间：
2008
期刊：
影响因子：
--
通讯作者：
W. Kuhn
中科院分区：
文献类型：
--
作者：
S. Scheider;W. Kuhn
道路网络、道路和路口是自然语言术语的例子，其语义可以通过其物理指示物的可视性来描述。为了定义可用于地理数据库中实例分类和描述的功能支持，必须处理信息不完整和可定义性有限的问题。在本文中，我们基于Hayes[4]的工作，提出了一种基于能力的通道网络理论，作为导出道路网络数据库表示的必要条件的手段。通过研究这个示例，我们展示了基于可视性的逻辑定义是一种方便的方法，可以捕获物理对象的基本属性，这些属性通常不出现在它们的数据库表示中，但适合解释和定义其结构。
Road networks, roads, and junctions are examples of natural language terms whose semantics can be described by affordances of their physical referents. In order to define affordances in such a way that they can be used for classifying and describing instances in a geographic database, one has to deal with the problems of informational incompleteness and limited definability. In this paper, we propose an affordance-based theory of channel networks, based on the work of Hayes [4], as a means to derive necessary conditions for database representations of road networks. By exploring this example, we show that affordance-based logical definitions are a convenient method to capture essential properties of physical objects usually not present in their database representation, but appropriate to explain and define its structure.