Information Gap Analysis
Information Gap Analysis
All the figures below are generated using examples/model_analysis/infogap.jl.
Setup

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There are 4 uncertain observations at times t = [1,2,3,4]
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There are 4 possible models that can be applied to match the data
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y(t) = a * t + c -
y(t) = a * t^(1.1) + b * t + c -
y(t) = a * t^n + b * t + c -
y(t) = a * exp(t * n) + b * t + c
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There are 4 unknown model parameters with uniform prior probability functions:
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a = Uniform(-10, 10) -
b = Uniform(-10, 10) -
c = Uniform(-5, 5) -
n = Uniform(-3, 3)
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The model prediction for t = 5 is unknown and information gap prediction uncertainty needs to be evaluated
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The horizon of information gap uncertainty
his applied to define the acceptable deviations in the 4 uncertain observations.
Infogap in model y(t) = a * t + c








Infogap in model y(t) = a * t^(1.1) + b * t + c








Infogap in model y(t) = a * t^n + b * t + c








Infogap in model y(t) = a * exp(t * n) + b * t + c








Opportuneness and Robustness of the 4 models
