Anteriority index for managing fuzzy dates in archæological GIS
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During the exploitation of an archæological geographical information system, experts need to evaluate the anteriority in pairs of dates which are uncertain and inaccurate, and consequently represented by fuzzy numbers. To build their hypotheses, they need to have an assessment, taking value in [0, 1], of the relation “lower than” between two FNs. We answer the experts’ need of evaluation by constructing an anteriority index based on the Kerre index. Two applications, which constitute a step in the evaluation of the evolution of Reims during the domination of the Roman Empire, illustrate the use of the anteriority index.
KeywordsFuzzy numbers Fuzzy comparison GIS Archæology
The authors would like to thank the Champagne-Ardenne Regional Service in Archæology and the National Institute of Research in Preventive Archæology in Reims for their data as well as expert knowledge, and Dominique Pargny (GEGENA laboratory at the University of Reims Champagne Ardenne) for his contribution to the SIGRem project.
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