Sewer asset management: fusion of performance indicators into decision criteria
نویسندگان
چکیده
Within the RERAU methodology, each rehabilitation criterion is assigned a grade out of 4 possible ones. This grade results from successive aggregations of performance indicators. Issues related to base data (uncertain or imprecise data) and to fusion (conflicting or reinforcing indicators) lead to envisage a fuzzy method for processing the proposed set of performance indicators. Five issues are discussed in this paper: representing an indicator with fuzzy linguistic variables; representing each aggregation table with “if... then...” rules; combining two premises of a rule; fuzzy representation of the implication; aggregating the results of several rules.
منابع مشابه
Sewer rehabilitation criteria evaluated by fusion of fuzzy indicators
This paper deals with definition and assessment of decision criteria for sewer asset management. The work was prepared within a doctoral thesis (Ibrahim, 2008) and is part of a research program (INDIGAU, 2007-2010, www.indigau.fr) supported by the French National Research Agency (ANR). Three main ideas are exposed and illustrated in this paper. 1) Each rehabilitation criterion may be seen as th...
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