Interactive systems research group---Fraunhofer-Gesellschaft Institute for Industrial Engineering (lab review)

Author(s):  
K. Fähnrich ◽  
Jürgen Ziegler
Author(s):  
Jorma K. Mattila ◽  

Forty years have passed since Prof. Lotfi A. Zadeh introduced fuzzy set theory in his known article “Fuzzy Sets” in Information and Control, 8, 1965, sparking new development in information technology and automation. This article also formed the roots of the Fuzzy Systems Research Group, an active part of the Laboratory of Applied Mathematics, Lappeenranta University of Technology. Rough set theory, evolutionary computing, and neural computing followed, together with their combinations. This Special Issue presents 10 papers representing these areas. Many of the contributors of this Special Issue belong to the Fuzzy Systems Research Group and others work in close co-operations with this group. The first paper considers the use of linguistically expressed objectives in multicriteria decision-making in selection processes based on topological similarity M-relations between L-sets. The second presents basic ideas and fundamental concepts of rough set theory and considers properties of rough approximations. The third combines Lukasiewicz logics and modifier algebras based on Zadeh algebras, i.e., quasi-Boolean algebras of membership functions. The fourth applies Mö{o}bius transformations, known in complex analysis, to fuzzy subgroups in a topological point of view. The fifth discusses the stability of a classifier based on the Lukasiewicz structure and tests Schweizer and Sklar's implications with an extension to generalized mean to a classification task. The sixth deals with the interpretability problem of first-order Takagi-Sugeno systems and interpolation issues, developing a special two-model configuration. The seventh describes an expert system for defining an athlete's aerobic and anaerobic thresholds that successfully mimics decision-making by sport medicine professionals, with system functionality based on fuzzy comparison measures, generalized means, fuzzy membership functions, and differential evolution. The eighth applies a differential evolution algorithm-based method to training radial basis function networks with variables including centers, weights, and widths. The ninth compares two floating-point-encoded evolutionary algorithms – differential evolution and a generalized generation gap model – using a set of problems with different characteristics. The tenth proposes a new approach for monitoring break tendency of paper webs on modern paper machines, combining linguistic equations and fuzzy logic in a case-based reasoning framework. As the Guest Editor of this Special Issue, I thank the contributors and reviewers for their time and effort in making this special issue possible. I am also grateful to the JACIII editorial board, especially Prof. Kaoru Hirota, the Editors-in-Chief and Managing Editor Kenta Uchino, and the staff of Fuji Technology Press for the opportunity to participate in this work. I also thank Prof. Kaoru Hirota for organizing the reviewing of my paper.


2002 ◽  
Vol 124 (06) ◽  
pp. 57-59
Author(s):  
Michael Valenti

This article focuses on the fact that by matching the use to demand the heating, ventilating, and air conditioning (HVAC), the controls are now able to cut electric bills and ease strain on the local grid, often leading to earn credits from the utilities. Similarly, advanced lighting systems are providing needed illumination using less electricity than conventional overhead lighting. The Lighting Systems Research Group of Lawrence Berkeley National Laboratory developed a table lamp that provides the same illumination as a 300-watt halogen lamp or an ISO-watt incandescent table lamp, but uses less energy than either one. The Berkeley lamp’s designers placed an optical septum—an aluminum reflector dish painted white—between the two lamps to permit three different modes of lighting—down, up, or a combination of the two. The downward, directly focused light is intended for reading or writing, and the indirect, upward light for low glare, suitable for working on a computer.


2015 ◽  
Vol 20 (26) ◽  
pp. 120
Author(s):  
Fernando Jerez Martin ◽  
Belen Pérez de Juan

<p>La tecnología ha transformado la percepción del espacio en que vivimos. Somos parte de una infinita red con acceso a territorios de inimaginables niveles de conectividad. Aunque Rem Koolhaas continue reivindicando una arquitectura de paredes, puertas y cerraduras en la última Bienal de Venecia, quizá los nuevos Elementos de Arquitectura sean en realidad, passwords, firewalls, key encryptions and security certificates. Nadie escapa a una tecnología invisible que define nuevos espacios virtuales, amplificando los límites de los edificios. Los expertos dicen que esto es sólo el comienzo. Pero, ¿y si en realidad estuviéramos al final de un largo proceso?¿ Y si la disolución de la arquitectura en la tecnología hubiera empezado hace mucho tiempo? Para desarrollar esta investigación, revisaremos ciertos planteamientos científicos donde la coincidencia de los protocolos cibernéticos de Norbet Wienner, las secuencias randomizadas de William Ross Ashby o el Systems Research Group de Gordon Pask con el arquitecto Cedric Price y el MIT Architecture Machine Group, generarán, una nueva metodología que derivará en un nuevo lenguaje gráfico, redefiniendo el proyecto de arquitectura.</p>


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