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Activity Number:
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529
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Type:
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Topic Contributed
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Date/Time:
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Thursday, August 2, 2007 : 10:30 AM to 12:20 PM
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Sponsor:
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Section on Statistics and the Environment
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| Abstract - #310394 |
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Title:
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GIS, Map Accuracy, and Statistics
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Author(s):
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Michael Goodchild*+
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Companies:
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University of California, Santa Barbara
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Address:
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5707 Ellison Hall, Santa Barbara, CA, 93106-4060,
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Keywords:
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Abstract:
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The widespread adoption of geographic information systems has renewed interest in models of map accuracy. This presentation reviews literature on the topic, and summarizes recent advances within the theoretical framework of geostatistics. The concept of measurement-based GIS is presented as a way of addressing the fundamental problems associated with the traditional coordinate-based approach. The case of area-class maps remains an outstanding problem, despite the overwhelming importance of this map type in GIS applications. The state of knowledge in modeling error in area-class maps is reviewed, and a set of six tests is proposed against which any model should be measured. It is shown that only one model meets all six tests, and that the model is in practice greatly overspecified.
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- The address information is for the authors that have a + after their name.
- Authors who are presenting talks have a * after their name.
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