Hans-Paul Schwefel (born December 4, 1940 in Berlin) is a German computer scientist and professor emeritus at University of Dortmund (now Dortmund University of Technology), where he held the chair of systems analysis from 1985 until 2006. "December 4th" redirects here For the song by Jay-Z, see December 4th (song. Year 1940 ( MCMXL) was a Leap year starting on Monday (link will display the full 1940 calendar of the Gregorian calendar. Berlin is the capital city and one of sixteen states of Germany. A computer scientist is a person that has acquired knowledge of Computer science, the study of the theoretical foundations of information and computation and their application Dortmund University of Technology (Technische Universität Dortmund is a University in Dortmund, North Rhine-Westphalia, Germany with over 20000 Systems analysis is the Interdisciplinary part of Science, dealing with analysis of sets of interacting or entities the Systems often prior to their automation He is one of the pioneers in evolutionary computation and one of the authors responsible for the evolution strategy (Evolutionsstrategie). In Computer science evolutionary computation is a subfield of Artificial intelligence (more particularly Computational intelligence) that involves In computer science evolution strategy (ES is an optimization technique based on ideas of adaptation and evolution His work has helped to understand the dynamics of evolutionary algorithms and to put evolutionary computation on formal grounds.
He attended the Technical University of Berlin (TUB) and graduated as an aerospace engineer in 1965 and got his PhD. in 1975. The Technical University of Berlin ( Berlin Institute of Technology, TUB, TU Berlin, German Technische Universität Berlin) is located "PhD" redirects here for other uses see PhD (disambiguation. While as a student at TUB, he met Ingo Rechenberg in November 1963. Ingo Rechenberg (born January 20 1934 in Berlin) is a German computer scientist and professor His initial work had nothing to do with cybernetics, bionics, or optimization itself. Cybernetics is the interdisciplinary study of the Structure of Complex systems especially Communication processes control mechanisms and Feedback Bionics (also known as biomimetics, biognosis, Biomimicry, or bionical creativity engineering) is the application of biological Both of them were studying different subjects at the time. Rechenberg was dealing with wall shear stress measurements and Schwefel was responsible for organizing fluid dynamics execises for other students.
While attending the Hermann-Föttinger Institute for Hydrodynamics (HFI) at TUB, he and Rechenberg began performing fluid dynamics experiments upon wings, kinked plates, and other objects related to aerodynamics. Fluid dynamics is the sub-discipline of Fluid mechanics dealing with fluid flow: Fluids ( Liquids and Gases in motion WING "ESPN 1410" is a commercial AM radio station in Dayton Ohio operating with 5000 watts at 1410 kHz with studios offices and transmitter located on David The main objetive of those experiments were concerned to optimizing the object shape and/or parameters through small modifications on the real object, a "technique" they called experimental optimization, in order to reduce the drag, increase the thrust, and so on. In Fluid dynamics, drag (sometimes called fluid resistance) is the force that resists the movement of a Solid object through a Fluid (a Thrust is a reaction force described quantitatively by Newton 's Second and Third Laws. Applying classical optimization methods (such as Gauss–Seidel and gradient-based techniques) on such experiments showed that those methods are not well suited to be adopted in experimental optimization, mainly due to noisy measurements and/or multimodality. The Gauss–Seidel method is a technique used to solve a Linear system of equations. In Vector calculus, the gradient of a Scalar field is a Vector field which points in the direction of the greatest rate of increase of the scalar They realized modifying all the variables at same time via a random manner (e. g. , small modifications are more frequent than larger ones). This was the seminal idea to bring to light the evolution strategy, which was initially used on a discrete problem (optimization of a kinked plate in a wind tunnel) and was handled without computers. In computer science evolution strategy (ES is an optimization technique based on ideas of adaptation and evolution
Some time later, Schwefel was responsible for structuring the evolution strategy to deal with numerical/parametric optimization and, also, has helped to formalize it as it is known nowadays. In computer science evolution strategy (ES is an optimization technique based on ideas of adaptation and evolution
References
- Beyer, H. -G. (2001). The Theory of Evolution Strategies. Natural Computing Series. Springer, Berlin 2001.
- Beyer, H. -G. and Schwefel, H. -P. (2002). Evolution Strategies: A Comprehensive Introduction. In Natural Computing, 1(1):3-52.
- Hans-Paul Schwefel's Curriculum Vitae
- Hans-Paul Schwefel: Cybernetic Evolution as Strategy for Experimental Research in Fluid Mechanics (in German). Diploma Thesis, Hermann-Föttinger Institute for Fluid Mechanics, Technical University Berlin, March 1965.
- Ingo Rechenberg: Evolutionsstrategie '94. Stuttgart: Frommann-Holzboog 1994.
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