Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The Groundwater and the Groundwater Quality Management Problem: Reliability and Solution Techniques
Abstract The groundwater and the groundwater quality management models are defined as an engineering decision problem. The solution of this problem is not trivial and can be reached with the use of deterministic or stochastic techniques. The determistic approaches (Primal Method) compute only local minima, or the global minimum (Outer Approximation Methods) only according to strict hypothesis. The stochastic methods (Simulated Annealing, Genetic Algorithms or Neural Networks) find the global minimum, but only in statistical sense. The most recent approaches to the problem treat the physical parameters (transmissivity) as a random field. The uncertainty of the transmissivity makes impossible to guarantee the feasibility of the optimal strategy. A reliability level is defined as the ratio between the number of realizations that mantain feasible the optimal solution out of the total number of realizations. Some of the algorithms proposed to reach a fixed reliability are discussed. The idea of linking the goal of the management problem with the number and location of new field measurements is introduced.
The Groundwater and the Groundwater Quality Management Problem: Reliability and Solution Techniques
Abstract The groundwater and the groundwater quality management models are defined as an engineering decision problem. The solution of this problem is not trivial and can be reached with the use of deterministic or stochastic techniques. The determistic approaches (Primal Method) compute only local minima, or the global minimum (Outer Approximation Methods) only according to strict hypothesis. The stochastic methods (Simulated Annealing, Genetic Algorithms or Neural Networks) find the global minimum, but only in statistical sense. The most recent approaches to the problem treat the physical parameters (transmissivity) as a random field. The uncertainty of the transmissivity makes impossible to guarantee the feasibility of the optimal strategy. A reliability level is defined as the ratio between the number of realizations that mantain feasible the optimal solution out of the total number of realizations. Some of the algorithms proposed to reach a fixed reliability are discussed. The idea of linking the goal of the management problem with the number and location of new field measurements is introduced.
The Groundwater and the Groundwater Quality Management Problem: Reliability and Solution Techniques
Tucciarelli, T. (Autor:in)
01.01.1995
18 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Simulated Annealing , Reliability Level , Natural Parameter , Installation Cost , Feasible Domain Engineering , Geoengineering, Foundations, Hydraulics , Waste Management/Waste Technology , Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution , Atmospheric Protection/Air Quality Control/Air Pollution , Soil Science & Conservation , Noise Control
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