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PYHASSE a New Software Tool for Partially Ordered Sets Example: Ranking of Contaminated Regions in the Alps

Authors
Voigt, Kristina (Helmholtz Zentrum Muenchen - German Research Center for Environmental Health (GmbH))
Search for Kristina Voigt in Research Programmes Information System
Brüggmann, Rainer (Leibniz- Institute of Fresh Water Ecology and Inland Fisheries)
Search for Rainer Brüggmann in Research Programmes Information System
Schramm, Karl-Werner (Helmholtz Zentrum Muenchen - German Research Center for Environmental Health (GmbH))
Search for Karl-Werner Schramm in Research Programmes Information System
Kirchner, Manfred (Helmholtz Zentrum Muenchen - German Research Center for Environmental Health (GmbH))
Search for Manfred Kirchner in Research Programmes Information System
Chapter Environmental Health, Consumer Protection and Quality of Life
Volume Environmental Informatics and Industrial Ecology
Conference Environmental Informatics and Industrial Ecology
Lüneburg, 2008
Year 2008
Abstract of the Article
In complex environmental data-sets it is often necessary to compare different sets of criteria (attributes). In the similarity analysis which is part of theory of partially ordered sets (Hasse Diagram Technique) we intend to calculate the similarity of different posets. This similarity analysis is an important feature of the newly developed software packages called PYHASSE developed by the second author. As an example we use a data-matrix which was generated in an international project named MONARPOP (Monitoring Network in the Alpine Region for Persistent and other Organic Pollutants) in which selected chemicals in environmental media in the mountain area of the Alps were analyzed in the years 2004 and 2005 (MONARPOP, 2008). 17 pesticides were chosen and analyzed in soil samples in Germany, Austria, Switzerland, Italy, and Slovenia. The samples were taken at different heights. In this approach we took a look at soil samples at different heights in the five mentioned countries. Two soil types were analyzed: humus and mineral soil layer. So we perform a similarity analysis of the two different soils (humus and mineral soil) in order to get an idea if the type of soil has a great impact on the ranking of the pesticides and hence on the contamination. It is demonstrated that the different soil layers have some kind of influence but not a great impact on the structure of the Hasse Diagrams.
Pages 631 - 636
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