Adjectives constitute a challenging issue for NLP applications. From a syntactic viewpoint, they can be predicative or attributive. From a semantic viewpoint, their sense can vary depending on the context in which they appear. In this paper we present an overview on the lexical semantics of adjectives in Natural Language Processing, followed by the presentation of the papers included in this proceeding.

In this paper, we address the issue of syntagmatic expressions from a computational lexical semantic perspective. From a representational viewpoint, we argue for a hybrid approach combining linguistic and conceptual paradigms, in order to account for the continuum we find in natural languages from free combining words to frozen expressions. In particu-lar, we focus on the place of lexical and semantic restricted co-occurrences. From a t)rocessing view-point, we show how to generate/analyze syntag-matic expressions by using an efficient constraint-based processor, well fitted for a knowledge-driven approach. 1

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