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  • a function 
    LaTeX Math Inline
    body--uriencoded--y%5e*(x, %7B\bf p%7D)
     of the argument 
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    bodyt \in \Rx
     and set of model parameters 
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    body--uriencoded--%7B\bf p%7D = \%7B p_m\%7D_%7Bm = 1..M%7D = \%7Bp_1, p_2, ... p_M\%7D
  • a discrete finite training dataset
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    body--uriencoded--\%7B (x_k, y_k)\%7D_%7Bk = 1..N%7D = \%7B (x_0, y_0), (x_1, y_1), ..., (x_N, y_N) \%7D
     representing the available knowledge about the system the model is trying to describe

then matching procedure assumes searching for thee the specific set of model parameters 

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body--uriencoded--%7B\bf p%7D_%7B\rm bestfit%7D
 to minimize the goal function:

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alignmentleft
FG({\bf p}) = \sum_{k=1}^N \, \Psi \left( y^*(x_k) - y_k \right) \rightarrow \textrm{min} \ \Longleftrightarrow \ {\bf p} = {\bf p}_{\rm bestfit}

where 

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body\Psi(z)
 is the discrepancy distance function.

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