Oce-nederland B.v.

Robertus P Heemels

Louis M Cremers

Eduardus J Van Vliembergen

Frederik J Hommersom

Jan Gerritsen

Eduardus Jw Van Vliembergen

An apparatus and method for syntactic signal analysis which is suitable for processing signals which deviate, within a freely selected margin, from a set of signals predetermined by a grammar, the apparatus being provided with a feature unification mechanism which detects violations of features, and an adaptive threshold mechanism coupled thereto. The feature unification mechanism, which processes the features in groups so that rapid processing is obtained, determines a violation score, thus providing a measure of the deviation of the analyzed signal from the set of signals predetermined by the grammar and indicates what elements of the signal are not satisfactory so that these can be corrected if necessary. The adaptive threshold mechanism enables a number of analyses to be delivered each having a violation score, so that on the basis thereof, in combination with other factors which may be available, it is possible to select the best analysis. The apparatus is applicable to signal correction, signal verification and signal recognition.

Apparatus and method for syntactic signal analysis

To determine lexical data relating to a compound target word by reference to a vocabulary containing words with their lexical data, the vocabulary is searched for a word having a longest final part in common with the target word, the vocabulary being arranged in retrograde order for the purpose of this search process.

Apparatus and method for determining data of compound words

To enable inflected word forms to be derived, a method and a data processing unit are provided for inflecting a given word and for adapting the lexical data of the word correspondingly by reference to a classification scheme containing inflection rules for a given natural language. The effect achieved is that inflected word forms do not have to be contained in an electronic word register, and this results in a considerable reduction in memory space occupied by the word register.

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Roermond, Netherlands

Robertus P Heemels