عنوان

Insight into fuzzy modeling /

1119193192

1119193214

9781119193197

9781119193210

1119193206

9781119193180

9781119193203

dltt

Insight into fuzzy modeling /

[Book]

Vilém Novák, Irina Perfilieva, and Antonín Dvóřák, University of Ostrava, Institute for Research and Applications of Fuzzy Modeling, the Czech Republic

1 online resource (xiv, 247 pages)

Machine generated contents note: Preface xv Acknowledgments xvii PART I FUNDAMENTALS OF FUZZY MODELING 1 What is fuzzy modeling 3 1.1 Indeterminacy in human life 3 1.2 Fuzzy modeling: with and without words 6 2 Overview of basic notions 11 2.1 Relations, functions, ordered sets 11 2.2 Fuzzy sets and fuzzy relations 14 2.2.1 The concept of a fuzzy set 15 2.2.2 Operations with fuzzy sets 20 2.2.3 Fuzzy numbers 29 2.2.4 Fuzzy partition and fuzzy covering 33 2.2.5 Cartesian product and fuzzy relations 34 2.2.6 Fuzzy equality and extensional fuzzy sets 41 2.3 Elements of mathematical fuzzy logic 44 2.3.1 Structure of truth degrees in mathematical fuzzy logic 44 2.3.2 Logical inference 47 2.3.3 Formal systems of MFL 48 2.3.4 The concept of fuzzy IF-THEN rule 50 3 Fuzzy IF-THEN rules in approximation of functions 53 3.1 Relational interpretation of fuzzy IF-THEN rules 53 3.1.1 Finite functions and their description 54 3.1.2 Relational interpretation of linguistic descriptions 57 3.1.3 Managing more variables 64 3.2 Approximation of functions using fuzzy IF-THEN rules 64 3.2.1 Defuzzification 64 3.2.2 Fuzzy approximation 67 3.2.3 Construction of approximating function 67 3.2.4 Choosing between DNF and CNF. 74 3.3 Generalized modus ponens and fuzzy functions 77 3.4 TakagiSugeno rules 80 3.4.1 Basic concepts 80 3.4.2 Fuzzy approximation using TSrules 80 3.4.3 Identification of TSrules 84 4 Fuzzy transform 87 4.1 Fuzzy partition 88 4.2 The concept of F-transform 90 4.2.1 Direct F-transform 90 4.2.2 Inverse F-transform 92 4.3 Discrete F-transform 95 4.4 F-transform of functions of two variables 96 4.5 F1transform 98 4.6 Methodological remarks to applications of the F-transform 101 5 Fuzzy natural logic and approximate reasoning 103 5.1 Linguistic semantics and linguistic variable 103 5.1.1 Linguistic variable 104 5.1.2 Intension, context, extension 105 5.1.3 Refined definition of linguistic variable 106 5.2 Theory of evaluative linguistic expressions 108 5.2.1 The concept and structure of evaluative expressions 108 5.2.2 Evaluative linguistic predications 111 5.2.3 Mathematical model of the semantics of evaluative linguistic expressions 113 5.3 Interpretation of fuzzy/linguistic IF-THEN rules 124 5.3.1 Linguistic description 124 5.3.2 Intension of fuzzy/linguistic IF-THEN rules 125 5.4 Approximate reasoning with linguistic information 126 5.4.1 Basic principle of approximate reasoning 126 5.4.2 Perceptionbased logical deduction 127 5.4.3 Formalization of the perceptionbased logical deduction 131 5.4.4 Comparison of two interpretations of fuzzy IF-THEN rules 136 6 Fuzzy cluster analysis 145 6.1 Basic notions 145 6.2 Fuzzy clustering algorithms 147 6.3 The algorithm of fuzzy cmeans 148 6.4 The GustafsonKessel algorithm 151 6.5 How the number of clusters can be determined 152 6.6 Construction of fuzzy rules based on found clusters 153 PART II SELECTED APPLICATIONS 7 Fuzzy/linguistic control and decisionmaking 159 7.1 The principle of fuzzy control 159 7.1.1 Control in a closed feedback loop 161 7.1.2 A general scheme of fuzzy controller 162 7.2 Fuzzy controllers 165 7.2.1 Variables 166 7.2.2 Basic types of classical controllers 167 7.2.3 Basic types of fuzzy controllers 167 7.3 Design of fuzzy/linguistic controller 169 7.3.1 Determination of variables and linguistic context 169 7.3.2 Choosing fuzzy action unit 171 7.3.3 Formation of knowledge base 172 7.3.4 Tuning linguistic description 177 7.4 Learning 180 7.4.1 Modification and learning of linguistic context 180 7.4.2 Learning linguistic description 183 7.4.3 Practical experiences with control using linguistic fuzzy action unit 188 7.5 Decisionmaking using linguistic descriptions 190 7.5.1 Introduction 190 7.5.2 Hierarchy of linguistic descriptions in decisionmaking 191 7.5.3 Demonstration of the decisionmaking methodology using linguistic descriptions 193 8 F-transform in image processing 197 8.1 Image and its basic processing using F-transform 197 8.2 F-transform based image compression and reconstruction 198 8.2.1 Basic principles of image compression 198 8.2.2 Simple F-transform compression 199 8.2.3 Advanced Image Compression 200 8.3 F1transform edge detector 201 8.4 F-transform based image fusion 204 8.4.1 Basic idea of image fusion 204 8.4.2 Simple F-transform based fusion algorithm 205 8.4.3 Complete F-transform based fusion algorithm 207 8.4.4 Enhanced simple fusion algorithm 209 8.5 F-transform based corrupted image reconstruction 211 8.5.1 The reconstruction problem 212 8.5.2 F-transform based reconstruction 212 8.5.3 Demonstration examples 214 9 Analysis and forecasting of time series 219 9.1 Classical vs. fuzzy models of time series 220 9.1.1 Definition of time series 220 9.1.2 Classical models of time series 220 9.1.3 Fuzzy models of time series 221 9.2 Analysis of time series using F-transform 222 9.2.1 Decomposition of time series 222 9.2.2 Extraction of trendcycle and trend using F-transform 224 9.3 Time series forecasting 229 9.3.1 Decomposition of time domain 229 9.3.2 Forecast of trendcycle 230 9.3.3 Forecast of seasonal component 234 9.3.4 Forecast of the whole time series 235 9.4 Characterization of time series in natural language 236 9.4.1 Sentences characterizing trend 236 9.4.2 Automatic generation of sentences characterizing trend 238 9.4.3 Mining information from time series 241 References 245 Index 255

Includes bibliographical references and index

Fundamentals of Fuzzy Modeling -- What is Fuzzy Modeling -- Indeterminacy in Human Life -- Fuzzy Modeling: With and Without Words -- Overview of Basic Notions -- Relations, Functions, Ordered Sets -- Relations -- Fuzzy Sets and Fuzzy Relations -- The Concept of a Fuzzy Set -- Operations with Fuzzy Sets -- Fuzzy Numbers -- Fuzzy Partition and Fuzzy Covering -- Cartesian Product and Fuzzy Relations -- Fuzzy Equality and Extensional Fuzzy Sets -- Elements of Mathematical Fuzzy Logic -- Structure of Truth Degrees in Mathematical Fuzzy Logic -- Logical Inference -- Formal Systems of MFL -- The Concept of Fuzzy IF-THEN Rule -- Fuzzy If-Then Rules in Approximation of Functions -- Relational Interpretation of Fuzzy IF-THEN Rules -- Finite Functions and Their Description -- Relational Interpretation of Linguistic Descriptions -- Managing More Variables -- Approximation of Functions Using Fuzzy IF-THEN Rules -- Defuzzification -- Fuzzy Approximation -- Choosing between DNF and CNF -- Generalized Modus Ponens and Fuzzy Functions -- Takagi-Sugeno Rules -- Basic Concepts -- Fuzzy Approximation Using TS Rules -- Identification of TS Rules -- Fuzzy Transform -- Fuzzy Partition -- The Concept of F-Transform -- Direct F-Transform -- Inverse F-Transform -- Discrete F-Transform -- F-Transform of Functions of Two Variables -- F'-Transform -- Methodological Remarks to Applications of the F-Transform -- Fuzzy Natural Logic and Approximate Reasoning -- Linguistic Semantics and Linguistic Variable -- Linguistic Variable -- Intension, Context, Extension -- Refined Definition of Linguistic Variable -- Theory of Evaluative Linguistic Expressions -- The Concept and Structure of Evaluative Expressions -- Evaluative Linguistic Predications -- Mathematical Model of the Semantics of Evaluative Linguistic Expressions -- Interpretation of Fuzzy/Linguistic IF-THEN Rules -- Linguistic Description -- Intension of Fuzzy/Linguistic IF-THEN Rules -- Approximate Reasoning with Linguistic Information -- Basic Principle of Approximate Reasoning -- Perception-Based Logical Deduction -- Formalization of the Perception-Based Logical Deduction -- Comparison of Two Interpretations of Fuzzy IF-THEN Rules -- Fuzzy Cluster Analysis -- Basic Notions -- Fuzzy Clustering Algorithms -- The Algorithm of Fuzzy c-Means -- The Gustafson-Kessel Algorithm -- How the Number of Clusters Can Be Determined -- Construction of Fuzzy Rules Based on Found Clusters -- Selected Applications -- Fuzzy/Linguistic Control and Decision-Making -- The Principle of Fuzzy Control -- Control in a Closed Feedback Loop -- A General Scheme of Fuzzy Controller -- Fuzzy Controllers -- Variables -- Basic Types of Classical Controllers -- Basic Types of Fuzzy Controllers -- Design of Fuzzy/Linguistic Controller -- Determination of Variables and Linguistic Context -- Choosing Fuzzy Action Unit -- Formation of Knowledge Base -- Tuning Linguistic Description -- Learning -- Modification and Learning of Linguistic- Context -- Learning Linguistic Description -- Practical Experiences with Control Using Linguistic Fuzzy Action Unit -- Decision-Making Using Linguistic Descriptions -- Introduction -- Hierarchy of Linguistic Descriptions in Decision-Making -- Demonstration of the Decision-Making Methodology Using Linguistic Descriptions -- F-Transform in Image Processing -- Image and Its Basic Processing Using F-Transform -- F-Transform-Based Image Compression and Reconstruction -- Basic Principles of Image Compression -- Simple F-Transform Compression -- Advanced Image Compression -- F-Transform Edge Detector -- F-Transform-Based Image Fusion -- Basic Idea of Image Fusion -- Simple F-Transform-Based Fusion Algorithm -- Complete F-Transform-Based Fusion Algorithm -- Enhanced Simple Fusion Algorithm -- F-Transform-Based Corrupted Image Reconstruction -- The Reconstruction Problem -- F-Transform-Based Reconstruction -- Demonstration Examples -- Analysis and Forecasting of Time Series -- Classical Versus Fuzzy Models of Time Series -- Definition of Time Series -- Classical Models of Time Series -- Fuzzy Models of Time Series -- Analysis of Time Series Using F-Transform -- Decomposition of Time Series -- Extraction of Trend-Cycle and Trend Using F-Transform -- Time Series Forecasting -- Decomposition of Time Domain -- Forecast of Trend-Cycle -- Forecast of Seasonal Component -- Forecast of the Whole Time Series -- Characterization of Time Series in Natural Language -- Sentences Characterizing Trend -- Automatic Generation of Sentences Characterizing Trend -- Mining Information from Time Series

0

"This book is the result of almost thirty years of research on fuzzy modeling. It provides a unique view of both the theory and various types of applications. The book is divided into two parts. The first part contains an extensive presentation of the theory of fuzzy modeling. The second part presents selected applications in three important areas: control and decision-making, image processing, and time series analysis and forecasting. The authors address the consistent and appropriate treatment of the notions of fuzzy sets and fuzzy logic and their applications. They provide two complementary views of the methodology, which is based on fuzzy IF-THEN rules. The first, more traditional method involves fuzzy approximation and the theory of fuzzy relations. The second method is based on a combination of formal fuzzy logic and linguistics. A very important topic covered for the first time in book form is the fuzzy transform (F-transform). Applications of this theory are described in separate chapters and include image processing and time series analysis and forecasting. All of the mentioned components make this book of interest to students and researchers of fuzzy modeling as well as to practitioners in industry"--

Insight into fuzzy modeling

9781119193180

Fuzzy mathematics.

Fuzzy systems-- Mathematical models.

Simulation methods.

MAT-- 000000

Novák, Vilém,1951-

Dvořák, Antonín, (Mathematician)

Perfilieva, Irina,1953-

Ohio Library and Information Network.

20160406053452.0

rda

[Book]

Y