The invention relates to a method for controlling an industrial process
for manufacturing or processing a product, in particular for controlling
the cooling line of a hot-rolling mill, said cooling line being simulated
by a physical model. To optimize the cooling process, a correction factor
is determined in a simple manner, whereby the product data records are
saved with the correction factors that have been determined previously.
For a new strip to be cooled, the saved product data records are compared
with the product data of the new strip and similar data records are
extracted. A new correction factor is then determined, e.g. by means of
linear regression, from the correction factors of the similar product
data records.
