AUTOMATIC, COMPUTER-BASED SIMILARITY CALCULATION SYSTEM FOR QUANTIFYING THE SIMILARITY OF TEXT EXPRESSIONS

摘要

The invention relates to a device and a method for the automatic, computer-based weighting of the similarity of text expressions. The inventive system or method comprises a document database unit (1), a candidate expression storage unit (2), and a similarity weight value calculation unit (3) while being characterized in that the similarity weight values agw(t₁, t₂) for the individual pairs of expressions can be calculated based on a degree of similarity occ_con(t₁, t₂) that takes into account both the total frequency with which the two expressions of a pair of expressions are used within one and the same text segment in a number of several text segments and the total number of different context expressions in said number of text segments.