... Manufacturing. Tech LicThesis , KTH Bhartiya , Dufour and Doyle ( 2001) : Thermal- Hydraulic modelling of a continuous pulp digester, in proceedings from Conference on Digester modelling in Annapolis, ... to include uncertainties in model structures. In general, it is di¢ cult to des cribe uncertainties in the model structure.Parametric uncertainties can either be deterministic in that they are ... Likelihoodestimate^ML.4By using the initial information discussed in Section 3.3 in combination with the least squares criterion in eq. 6, and with Wt= diag11002;11002; 1,5the use of the lsqnonlin algorithm...