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Modelling Vague Knowledge for Decision Support in Planning Archaeological Prospections : Volume I-2, Issue 1 (13/07/2012)

By Boos, S.

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Book Id: WPLBN0004013549
Format Type: PDF Article :
File Size: Pages 6
Reproduction Date: 2015

Title: Modelling Vague Knowledge for Decision Support in Planning Archaeological Prospections : Volume I-2, Issue 1 (13/07/2012)  
Author: Boos, S.
Volume: Vol. I-2, Issue 1
Language: English
Subject: Science, Isprs, Annals
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2012
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

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Müller, H., Hornung, S., & Boos, S. (2012). Modelling Vague Knowledge for Decision Support in Planning Archaeological Prospections : Volume I-2, Issue 1 (13/07/2012). Retrieved from http://community.worldlibrary.net/


Description
Description: Mainz University of Applied Sciences, Institute for Spatial Information and Surveying Technology (i3mainz), Lucy-Hillebrand-Str. 2, D-55128 Mainz, Germany. Most archaeological predictive models lack significance because fuzziness of data and uncertainty in knowledge about human behaviour and natural processes are hardly ever considered. One possibility to cope with such uncertainties is utilization of probability based approaches like Bayes Theorem or Dempster-Shafer-Theory. We analyzed an area of 50 km2 in Rhineland Palatinate (Germany) near a Celtic oppidum by use of Dempster-Shafer's theory of evidence for predicting spatial probability distribution of archaeological sites. This technique incorporates uncertainty by assigning various weights of evidence to defined variables, in that way estimating the probability for supporting a specific hypothesis (in our case the hypothesis presence or absence of a site). Selection of variables for our model relied both on assumptions about settlement patterns and on statistically tested relationships between known archaeological sites and environmental factors. The modelling process was conducted in a Geographic Information System (GIS) by generating raster-based likelihood surfaces. The corresponding likelihood surfaces were aggregated to a final weight of evidence surface, which resulted in a likelihood value for every single cell of being a site or a non-site. Finally the result was tested against a database of known archaeological sites for evaluating the gain of the model. For the purpose of enhancing the gain of our model and sharpening our criteria we used a two-step approach to improve the modelling of former settlement strategies in our study area. Applying the developed model finally yielded a 100 percent success rate of known archaeological sites located in predicted high potential areas.

Summary
MODELLING VAGUE KNOWLEDGE FOR DECISION SUPPORT IN PLANNING ARCHAEOLOGICAL PROSPECTIONS

 

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