An Introduction to Chaos Theory Workshop · An Introduction to Chaos Theory Workshop Amir Reza...
Transcript of An Introduction to Chaos Theory Workshop · An Introduction to Chaos Theory Workshop Amir Reza...
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An Introduction to Chaos An Introduction to Chaos Theory WorkshopTheory Workshop
AmirAmir Reza Reza SaffariSaffari AzarAzarElectrical Engineering Department, Electrical Engineering Department, SahandSahand University of TechnologyUniversity of Technology
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ContentsContents
Philosophical AspectsPhilosophical AspectsConcepts of Order and DisorderConcepts of Order and DisorderCausality, Determinism, and RandomnessCausality, Determinism, and RandomnessIntelligence and ComplexityIntelligence and Complexity
Mathematical AspectsMathematical AspectsIntroduction to StateIntroduction to State--SpaceSpaceDefinition of ChaosDefinition of ChaosChaotic Systems PropertiesChaotic Systems PropertiesFractal Geometry and ChaosFractal Geometry and Chaos
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Concepts of Order and DisorderConcepts of Order and Disorder
What is Order ?!!!What is Order ?!!!… and Disorder… and DisorderWhy Order ?!!!Why Order ?!!!… and Disorder… and DisorderHybrid SystemsHybrid Systems
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Causality, Determinism, and Causality, Determinism, and RandomnessRandomness
CausalityCausalityDeterminismDeterminismFreewillFreewillRandomnessRandomnessGoal Directed ActionGoal Directed Action
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Intelligence and ComplexityIntelligence and Complexity
What is Intelligence?What is Intelligence?Artificial Intelligence ?!!!Artificial Intelligence ?!!!Simple BehaviorsSimple BehaviorsComplex BehaviorsComplex BehaviorsConclusionConclusion
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Introduction to StateIntroduction to State--SpaceSpace
System ModelingSystem ModelingDynamical SystemsDynamical Systems
Example: Logistic MapExample: Logistic Map
m00 )t(x,x)t(x,)x(fx ℜ∈==&
mn00n1n x,xx,)x(fx ℜ∈==+
)x1(axx nn1n −=+
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SteadySteady--State Behavior State Behavior –– IIFixed PointFixed Point
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SteadySteady--State Behavior State Behavior –– IIIILimit CycleLimit Cycle
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SteadySteady--State Behavior State Behavior –– IIII… … Limit CycleLimit Cycle
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SteadySteady--State Behavior State Behavior –– IVIVQuasiQuasi--periodicperiodic
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SteadySteady--State Behavior State Behavior –– VVChaosChaos
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SteadySteady--State Behavior State Behavior –– VV… … ChaosChaos
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SteadySteady--State Behavior State Behavior –– VV… … ChaosChaos
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Definition of Chaos Definition of Chaos -- II
Historical PerspectiveHistorical PerspectiveLaplaceLaplace , 1776, 1776PoincarePoincare, 1903, 1903BirkhoffBirkhoff, 1920, 1920KolmogorovKolmogorov, 1960, 1960Lorenz, 1963Lorenz, 1963……
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Definition of Chaos Definition of Chaos -- IIII
None of the rest !!!None of the rest !!!
Deterministic RandomnessDeterministic Randomness
Unpredictable CausalityUnpredictable Causality
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Chaotic Systems Properties Chaotic Systems Properties -- II
NonNon--periodic Bounded Motion with periodic Bounded Motion with Initial Condition SensitivityInitial Condition Sensitivity
Butterfly Effect !!!Butterfly Effect !!!Restless Motion !!!Restless Motion !!!Heisenberg’s Uncertainty Principle Heisenberg’s Uncertainty Principle Naturally Unpredictable !!!Naturally Unpredictable !!!
Continuous, BroadContinuous, Broad--band, Noiseband, Noise--like like Power SpectrumPower Spectrum
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Chaotic Systems Properties Chaotic Systems Properties -- IIII
Stretching and FoldingStretching and FoldingLyapunovLyapunov ExponentsExponentsGrowing UncertaintyGrowing Uncertainty
Information Creation and DestructionInformation Creation and Destruction22ndnd Law of Thermodynamics SuspectedLaw of Thermodynamics Suspected
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Chaotic Systems Properties Chaotic Systems Properties -- IIIIII
Bifurcation DiagramBifurcation Diagram
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Chaotic Systems Properties Chaotic Systems Properties -- IIIIII
… … Bifurcation DiagramBifurcation Diagram
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Chaotic Systems Properties Chaotic Systems Properties -- IIIIII
… … Bifurcation DiagramBifurcation Diagram
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Chaotic Systems Properties Chaotic Systems Properties -- IVIV
Strange AttractorStrange Attractor
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Chaotic Systems Properties Chaotic Systems Properties -- IVIV
… … Strange AttractorStrange Attractor
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More Strange AttractorsMore Strange Attractors
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More Strange AttractorsMore Strange Attractors
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More Strange AttractorsMore Strange Attractors
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Fractal DimensionFractal Dimension
What is Dimension?What is Dimension?Why Euclidian?Why Euclidian?What is Fractal?What is Fractal?What is Fractal DimensionWhat is Fractal Dimension
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More FractalsMore Fractals
SierpinskySierpinsky TriangleTriangle
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More FractalsMore Fractals
FernFern
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More FractalsMore Fractals
Even CompleterEven Completer
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More FractalsMore Fractals
And Natural OnesAnd Natural Ones