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A multi-recombinative active matrix adaptation evolution strategy for constrained optimization
(2019)
In engineering design, optimization methods are frequently used to improve the initial design of a product. However, the selection of an appropriate method is challenging since many
methods exist, especially for the case of simulation-based optimization. This paper proposes a systematic procedure to support this selection process. Building upon quality function deployment, end-user and design use case requirements can be systematically taken into account via a decision
matrix. The design and construction of the decision matrix are explained in detail. The proposed
procedure is validated by two engineering optimization problems arising within the design of box-type boom cranes. For each problem, the problem statement and the respectively applied optimization methods are explained in detail. The results obtained by optimization validate the use
of optimization approaches within the design process. The application of the decision matrix shows the successful incorporation of customer requirements to the algorithm selection.
Analysis of the (μ/μI,λ)-CSA-ES with repair by projection applied to a conically constrained problem
(2019)
Verstärkt der Handel mit Agrar-Derivaten die Preisschwankungen von Agrar-Produkten? In der politischen Diskussion wird diese These oft als Grund für eine strenge Reglementierung des Handels mit Agrar-Derivaten angeführt. Hier diskutiere ich die Voraussetzungen, auf denen verschiedene Argumente für diese These beruhen. Eine zentrale Rolle dabei spielen die Begriffe von Gleichgewicht und Selbstreferenz. Diese Begriffe spielen in der Logik und der Physik eine wichtige Rolle, haben aber in der Ökonomie erstaunliche Konsequenzen.