Conventional and Fuzzy Regression

Conventional and Fuzzy Regression PDF

Author: Vlassios Hrissanthou

Publisher: Nova Science Publishers

Published: 2018-08

Total Pages: 342

ISBN-13: 9781536137996

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"Aims to present both conventional and fuzzy regression analyses from theoretical aspects followed by application examples. The present book contains chapters originating from different scientific fields. The first deals with both crisp (conventional) linear or nonlinear regression and fuzzy linear or nonlinear regression. The application example refers to the relationship between sediment transport rates on the one hand and stream discharge and rainfall intensity on the other hand. Second chapter refers to the crisp linear or nonlinear regression of six heavy metals between different soft tissues and shells of Telescopium telescopium and its habitat surface sediments. Third describes the crisp linear, multiple linear, nonlinear and Gaussian process regressions. The fourth is confronted with a classic regression model, named Geographically Weighted Regression (GWR), which constitutes a spatial statistics method. The fifth chapter regards fuzzy linear regression based on symmetric triangular fuzzy numbers. The sixth chapter treats fuzzy linear regression based on trapezoidal membership functions. The main application of this chapter concerns the dependence of rainfall records between neighboring rainfall stations for a small sample of data. The next chapter refers to the multivariable crisp and fuzzy linear regression. The eighth chapter deals with the fuzzy linear regression, with crisp input data and fuzzy output data. All the chapters offer a proper foundation of either widely used or new techniques upon regression. Among the new techniques, several innovated fuzzy regression based methodologies are developed for real problems, and useful conclusions are drawn"--

An Introduction to Fuzzy Regression Analysis with a Ballistic Application

An Introduction to Fuzzy Regression Analysis with a Ballistic Application PDF

Author: W. E. Baker

Publisher:

Published: 1984

Total Pages: 24

ISBN-13:

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Regression models are frequently used for predicting, but quite often the value assumed by the independent variable is somewhat vague. That problem is overcome in this paper by utilizing a combination of fuzzy set methodology and conventional statistical techniques; specifically, fuzzy regression analysis. Fuzzy regression analysis is applied to a particular vulnerability problem, and the difference between this approach and one which utilizes only probability theory is briefly examined.

Fuzzy Regression Analysis

Fuzzy Regression Analysis PDF

Author: Janusz Kacprzyk

Publisher: Physica

Published: 1992-08-27

Total Pages: 302

ISBN-13:

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Regression analysis is a relatively simple yet extremely useful and widely employed tool for determining relationship between some variables on the basis of some observed values taken by these variables. Fuzzy regression analysis has been recently deviced to accomodate in the framework of regression analysis vaguely specified data which are omnipresent in many applications, notably in all areas where human judgements are used. Fuzzy sets theory provides here proper tools. This book is a collection of papers written by virtually all major contributors to fuzzy regression. Its main issue is that vague, imprecise, etc. data may now be used in regression analysis. This is new. Apart from this it gives an extensive coverage of the whole field of fuzzy regression, both in a strictly mathematical and applicational perspective. Most approaches are algorithmic, and can be readily implemented. Information on software is provided.

Uncertainty Analysis in Engineering and Sciences: Fuzzy Logic, Statistics, and Neural Network Approach

Uncertainty Analysis in Engineering and Sciences: Fuzzy Logic, Statistics, and Neural Network Approach PDF

Author: Bilal Ayyub

Publisher: Springer Science & Business Media

Published: 1997-10-31

Total Pages: 414

ISBN-13: 9780792380306

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Uncertainty has been of concern to engineers, managers and . scientists for many centuries. In management sciences there have existed definitions of uncertainty in a rather narrow sense since the beginning of this century. In engineering and uncertainty has for a long time been considered as in sciences, however, synonymous with random, stochastic, statistic, or probabilistic. Only since the early sixties views on uncertainty have ~ecome more heterogeneous and more tools to model uncertainty than statistics have been proposed by several scientists. The problem of modeling uncertainty adequately has become more important the more complex systems have become, the faster the scientific and engineering world develops, and the more important, but also more difficult, forecasting of future states of systems have become. The first question one should probably ask is whether uncertainty is a phenomenon, a feature of real world systems, a state of mind or a label for a situation in which a human being wants to make statements about phenomena, i. e. , reality, models, and theories, respectively. One cart also ask whether uncertainty is an objective fact or just a subjective impression which is closely related to individual persons. Whether uncertainty is an objective feature of physical real systems seems to be a philosophical question. This shall not be answered in this volume.

Views on Fuzzy Sets and Systems from Different Perspectives

Views on Fuzzy Sets and Systems from Different Perspectives PDF

Author: Rudolf Seising

Publisher: Springer Science & Business Media

Published: 2009-04-03

Total Pages: 604

ISBN-13: 354093801X

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This book presents the complete philosophy of Fuzzy Set Theory. It offers a collection of views from scholars involved in various research projects concerning fuzziness in science, technology, economic systems, social sciences, logics and philosophy.

Foundations of Reasoning Under Uncertainty

Foundations of Reasoning Under Uncertainty PDF

Author: Bernadette Bouchon

Publisher: Springer Science & Business Media

Published: 2010-01-15

Total Pages: 272

ISBN-13: 3642107265

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This book draws on papers presented at the 2008 Conference on Information Processing and Management of Uncertainty (IPMU), held in Málaga, Spain. The conference brought together some of the world’s leading experts in the study of uncertainty.