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Activity Number:
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454
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Type:
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Invited
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Date/Time:
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Wednesday, August 1, 2007 : 2:00 PM to 3:50 PM
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Sponsor:
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Environmental and Ecological Statistics
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| Abstract - #307938 |
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Title:
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Multicriteria Prioritization, Partial Order, and Hasse Diagrams in Environmental Sciences and Chemistry
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Author(s):
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Rainer Bruggemann*+
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Companies:
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Leibniz Institute of Freshwater Ecology and Inland Fisheries
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Address:
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Muggelseedamm 310, Berlin, D-12587, Germany
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Keywords:
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Partial Order ; Water Management ; Chemicals
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Abstract:
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We take the point of view of environmetrics: Let first the data speak, and then let us include subjective preferences in order to get a unique decision. A set of partial orders (which themselves are partially ordered) is obtained. The iterative procedure stops if either a linear order is found, or two objects of specific interest are comparable. Two examples are given: As first example we evaluate the effects of nine water management strategies on the surface water system in Berlin. Surprisingly a conventional strategy can be recommended although the set of strategies also contained some high-technology strategies. The second example comes from the risk assessment of chemicals. It is shown that there are regions in the decision space, where it is not necessary to know the exact values of weights.
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