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"Ziel dieses Beitrags ist, die Luhmannsche Systemtheorie auf eine Modellierung mittels Fuzzy-Logik umzustellen und somit die Theorie autopoietischer Sozialsysteme in Richtung einer Theorie der Fuzzy-Systems fortzuentwickeln. Mit Hilfe der Fuzzy-Logik wird es möglich, Vagheiten von Systemzugehörigkeiten und vage Codierungsprozesse zu modellieren, ohne auf akteur- oder organisationstheoretische Modelle zurückgreifen zu müssen. Dies führt u.a. zu einer Neubestimmung der Vorstellung von Polykontexturalität als Poly-Optik sowie von Systemüberschneidungen." (Autorenreferat)

Der Beitrag zeichnet nach, wie aus einer differenzierungstheoretischen Perspektive die »Corona-Krise« beschrieben werden kann. Ausgangspunkt sind systemische Vagheiten, die sich in der jeweiligen funktionalen Perspektive auf das Virus Sars-Cov-2 ergeben. Diese Vagheiten müssen gesellschaftlich absorbiert werden. Wir stellen dabei fünf Formen der Vagheitsabsorption heraus und beschreiben Zahlen als Medium sowie narrative Typisierungen als kommunikative Praktiken, um systemische Vagheiten zu beseitigen. Die »Corona-Krise« erscheint dabei als das Ergebnis der Versuche systemischer Vagheitsbewältigung.

Fuzzy systems have become widely accepted and applied in a host of domains such as control, electronics or mechanics. The software for construction of these systems has traditionally been exploited from tools, platforms and languages run on-premise computing infrastructure. On the other hand, rise and ubiquity of the cloud computing model has brought a revolutionary way for computing services deployment. The boost of cloud services is leading towards increasingly specific service offering just as data mining and machine learning service. Unfortunately, so far, no definition for fuzzy system as service is available. This paper identifies this opportunity and focus on developing a proposal for fuzzy system-as-a-service definition. To achieve this, the proposal pursues three objectives: the complete description of cloud services for fuzzy systems using semantic technology, the composition of services and the exploitation of the model in cloud platforms for integration with other services. As an illustrative case, a real-world problem is addressed with the proposed specification. ; This work was supported by the Research Projects P12-TIC-2958 and TIN2016-81113-R (Ministry of Economy, Industry and Competitiveness - Government of Spain).

Ten years ago, Zadeh has brought into vogue the use of a name. Scientists no is an increasing less than poets strike off words that fit a situation. Today there recognition that for understanding vagueness, a fuzzy approach is required. We are just going through ~ transient period. From discussions of general philosophy to practical methods for system analysis. Unfortunately, much of the existing research is scattered. The practitioner interested in these methods face the challenge of sorting through a vast amount of literature to find a core on which to build. One of the objects of this book was to facilitate communication by bringing toge­ ther different viewpoints and coloring them from a common viewpoint. Since the romanian version appeared, at the very beginning of 1974, there has been a rapid growth in the literature of fuzzy modelling. A minor revision would have left the book quite out-of-date. The opportunity has been taken to correct, clarify, and update. Inexactness is implicit in human behaviour and erare humanum est. It is a pleasure to acknowledge the help we have received in preparing this version. The opportunity to see an english edition was a powerful stimulus, and we are grateful to Salomon Klaczko for making this possible. Another debt is to all fuzzy authors we have quoted. Their fascinating papers kindled our interest in the subject.