Search results for: P.A.V. Ferreira
chapter
This paper presents a methodology for designing controllers that place the roots of the characteristic polynomial of an uncertain system inside a set of circular regions around the nominal roots. A geometric framework is used for the derivation of an accurate search domain for the feasible controllers. Inside the given domain, a genetic algorithm efficiently searches for the most robust controller.
article
Expert Systems With Applications > 2014 > 41 > 10 > 4743-4751
We address the design of an Internet-based business process composed of several web services by using multiobjective optimization and game-theoretic methods. Adopting a suitable representation for the business process, we present a mathematical optimization problem which considers several quality-of-service objectives: cost, execution time, reliability, availability and reputation. The web service...
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In this paper the design of pole placement feedback controllers for interval plants is addressed within an interval analysis framework. Three main topics connected by the concept of interval Diophantine equation are treated: a relatively straightforward investigation about robust coprimeness of interval polynomials, a reliable computing approach for the design of pole placement controllers in the...
