Foundations of Geographic Information ScienceMatt Duckham, Michael F. Goodchild, Michael Worboys As the use of geographical information systems develops apace, a significant strand of research activity is being directed to the fundamental nature of geographic information. This volume contains a collection of essays and discussions on this theme. What is geographic information? What fundamental principles are associated with it? How can |
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Page 19
... tuples, and the problems of dealing with the potentially infinite number of such tuples are addressed. The subsequent section addresses queries, and the role of geographic information systems (GIS), within this theoretical framework ...
... tuples, and the problems of dealing with the potentially infinite number of such tuples are addressed. The subsequent section addresses queries, and the role of geographic information systems (GIS), within this theoretical framework ...
Page 21
... tuple of the form x, z where x denotes some location in space-time, and z denotes some set of properties associated with that location, commonly termed attributes. Location is constrained to the Earth's surface and nearsurface. In this ...
... tuple of the form x, z where x denotes some location in space-time, and z denotes some set of properties associated with that location, commonly termed attributes. Location is constrained to the Earth's surface and nearsurface. In this ...
Page 22
... tuples to be inferred from surrounding ones. For example, if temperature is known at a series of weather stations, then temperatures are inferred at intervening locations through simple processes such as Kriging or inverse-distance ...
... tuples to be inferred from surrounding ones. For example, if temperature is known at a series of weather stations, then temperatures are inferred at intervening locations through simple processes such as Kriging or inverse-distance ...
Page 24
... tuples. The form of the tuples varies; in (1), (2), and (5) the tuples are of the form x, z , while in (4) and (6) they are of the form x1 , y 1 , x2, y2 , x3 , y3 ,.. , n , yn , z , and in (3) a single tuple is sufficient, of the form ...
... tuples. The form of the tuples varies; in (1), (2), and (5) the tuples are of the form x, z , while in (4) and (6) they are of the form x1 , y 1 , x2, y2 , x3 , y3 ,.. , n , yn , z , and in (3) a single tuple is sufficient, of the form ...
Page 25
... tuples. Consider, for example, the query "Is x in California?" A GIS could address this query by performing a simple point-in-polygon operation on x to determine whether the point lies inside a polygon representing the boundary of the ...
... tuples. Consider, for example, the query "Is x in California?" A GIS could address this query by performing a simple point-in-polygon operation on x to determine whether the point lies inside a polygon representing the boundary of the ...
Contents
| 1 | |
| 18 | |
3 Communicating Geographic Information in Context | 32 |
4 Pragmatic Information ContentHow to Measure the Information in a Route Description | 47 |
5 Representational Commitment in Maps | 71 |
6 Granularity in Change Over Time | 101 |
7 A Theory of Granular Partitions | 124 |
8 On the Ontological Status of Geographical Boundaries | 160 |
Process and Content | 184 |
10 Neighborhoods and Landmarks | 203 |
11 Geographical Terminology ServersClosingn the Semantic Divide | 218 |
12 Placing Cultural Events and Documents in Space and Time | 238 |
13 Geographic Activity Models | 257 |
Index | 272 |
Other editions - View all
Foundations of Geographic Information Science Matt Duckham,Michael F. Goodchild,Michael Worboys No preview available - 2003 |
Foundations of Geographic Information Science Matt Duckham,Michael F. Goodchild,Michael Worboys No preview available - 2020 |
Common terms and phrases
activity agent analysis application approach associated boundaries cells classification cognitive communication complete Computer concepts consider consists contain corresponding decision defined definition described descriptions detail determined developed directions discussed distance distinct domain elements empty entities example exist fact field Figure formal Frank function gazetteer geographic information geographic information science geometry given granular hierarchy historical human important information content instructions International issues knowledge labeled landmarks Mark means measure mereological methods natural Notes objects ontology operations particular partition physical points possible pragmatic present Press principles problem properties query reasoning recognize reference regarded regions relation relationships representation represented respect semantic separate similar single Smith space spatial specific street structure task texts theory types University volume zone
Popular passages
Page 135 - ... is composite, for its stem gives a different sense with another termination, or its termination with another stem.) 4.04 In the proposition there must be exactly as many things distinguishable as there are in the state of affairs, which it represents.
Page 45 - Communication is a process involving two information-processing devices. One device modifies the physical environment of the other. As a result, the second device constructs representations similar to representations already stored in the first device. . . . [An individual's] mental representations . . . get communicated: that is, first transformed by the communicator into public representations, and then re-transformed by the audience into mental representations...
Page 8 - Spatial Data Acquisition and Integration Distributed Computing Extensions to Geographic Representation Cognition of Geographic Information Interoperability of Geographic Information Scale Spatial Analysis in a GIS Environment The Future of the Spatial Information Infrastructure...
Page 125 - H is connected and has n—l edges; (4) H contains no cycles, and if an edge is added which joins two non-adjacent vertices, one (and only one) cycle is thereby formed ; (5) H is connected but loses this property if any edge is deleted; (6) every pair of vertices is connected by one and only one chain. (1) => (2), for if p is the number of components, and m the number of edges, we have...
Page 203 - Geometric approaches to the nexus of time, space, and microprocess: implementing a practical model for mundane socio-spatial systems. In Egenhofer, MJ and Golledge, RG (eds.) Spatial and Temporal Reasoning in Geographic Information Systems. Oxford: Oxford University Press, 171-90.
Page 16 - Laboratory for Computer Graphics and Spatial Analysis, Graduate School of Design, Harvard University, Cambridge, Massachusetts, USA SUMMARY A METHOD for assembling and managing global terrain data is presented, the Geodesic Elevation Model.
Page 31 - Introduction to the Varenius project International Journal of Geographical Information Science, 13, pp.
References to this book
E-Learning Methodologies and Computer Applications in Archaeology Politis, Dionysios Limited preview - 2008 |