This paper proposes a new model that explicitly makes USI:
of both information sources in an integrated way. The model is
formulated based on the Gaussian maximum likelihood method.
The two key random variables considered in the model are
flows and flow increments. By assuming that these two random
variables are normally distributed, we generate an estimate b y
maximizing the likelihood of the flow level at the next time
interval, expressed as a product of the two probability density
functions. The model departs from other existing models in
that the parameters of the model are obtained based little 011
data fitting. The model, therefore, is very robust in terms of
calibration of its parameters.