VERFAHREN ZUR ERWEITERUNG EINER DATENBANK BESTEHEND AUS DATENPAAREN AUS EINANDER ZUGEORDNETER ERKENNUNG UND ANTWORT

The invention relates to a method for expanding a database that consists of data pairs of recognition and related response. The recognition consists of an element or a Boolean operation of elements. Every element is a function that uses a string of symbols, especially a text, as the argument and that gives a Boolean value, or a Boolean operation of further elements. A subset of the elements is stored in an expansion control database. The response consists of any string of symbols. The inventive method is characterized in that the databases are supplemented by a new data pair by defining a string of symbols to be recognized as the recognition template and another string of symbols as the response, by generating a new, empty recognition and applying the elements of the expansion control database to the recognition template. If the application of an element to the recognition template gives the value true , those parts of the recognition template that are necessary and sufficient for the logical truth of the functional result are deleted from the recognition template. The element giving the value true or a Boolean operation of the element giving the value true is supplemented by further elements derived from the remaining recognition template in the new recognition. The recognition thereby generated is then stored in the database together with the response as the new data pair.