An automatic procedure for extending lexical norms by means of the analysis of word co-occurrences in texts Une procédure automatique pour étendre des normes lexicales par l'analyse des cooccurrences dans des textes

Both in the field of psychology and in natural language processing, norms related to semantic properties, such as concreteness, polarity or emotionality, are important resources. The manual construction of these norms, by asking participants to rate the words, is expensive, hence the need to develop automatic methods of construction or extension. Several methods have been proposed, but they focus on only one dimension: polarity. We propose to determine whether one of these methods can be extended to six other norms, for French and Spanish. The experiments confirm the effectiveness of the technique, not only to extend a norm, but also to highlight words for which the values that were assigned by the raters seem unreliable.