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logica de lo preconciente aportes a la primera topica - Asociación ...

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Pab<strong>lo</strong> D. Slemenson“Lógica <strong>de</strong> <strong>lo</strong> <strong>preconciente</strong>”In 1953, he <strong>de</strong>ve<strong>lo</strong>ped a novel approach to the <strong>de</strong>sign of nonlinear filters andconstructed a hierarchy of nonlinear systems based on the Volterra-Wienerrepresentation. This approach has provi<strong>de</strong>d a basis for the <strong>de</strong>sign of optimal nonlinearprocessors for the <strong>de</strong>tection of signals in noise.In 1963, Lotfi Za<strong>de</strong>h co-authored with Charles Desoer their c<strong>la</strong>ssic text on the statespacetheory of linear systems. This book is wi<strong>de</strong>ly regar<strong>de</strong>d as a <strong>la</strong>ndmark in the<strong>de</strong>ve<strong>lo</strong>pment of the state-space approach and its application to control and systemsanalysis. The state-space approach is now the standard tool in optimal control and iswi<strong>de</strong>ly used in the analysis of a variety of systems ranging from industrial robots tospace guidance control.Prior to the publication of his seminal paper on fuzzy sets in 1965, Lotfi Za<strong>de</strong>h wasrecognized both nationally and internationally as one of the leading contributors to the<strong>de</strong>ve<strong>lo</strong>pment of system theory and its applications. His paper on fuzzy sets marked thebeginning of a new direction; by introducing the concept of a fuzzy set, that is, a c<strong>la</strong>sswith unsharp boundaries, he provi<strong>de</strong>d a basis for a qualitative approach to the analysisof complex systems in which linguistic rather than numerical variables are emp<strong>lo</strong>yed to<strong>de</strong>scribe system behavior and performance. In this way, a much better un<strong>de</strong>rstanding ofhow to <strong>de</strong>al with uncertainty may be achieved, and better mo<strong>de</strong>ls of human reasoningmay be constructed. Although his unorthodox i<strong>de</strong>as were initially met with someskepticism, they have gained wi<strong>de</strong> acceptance in recent years and have found numerousapplications in fields ranging from pattern analysis and system <strong>de</strong>sign to damageassessment and industrial process control.Subsequent to the publication of his 1965 paper, Lotfi Za<strong>de</strong>h has ma<strong>de</strong> a number ofbasic contributions to the theory of fuzzy sets and its applications, particu<strong>la</strong>rlynoteworthy of which are the fol<strong>lo</strong>wing:In the paper entitled, Probability Measures of Fuzzy Events (1968), he introduced theconcept of the probability measure of a fuzzy event which <strong>la</strong>ter led to the concepts ofcardinality and fuzzy quantification.Apendice 307

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