13.1. Constructivist activity13.2. Typicality associated with the data13.3. Specific character of text mining13.4.Supervised, unsupervised and semi-supervised techniques13.5.Quality of a model13.6. The scenario13.7. Representation of a datum13.8. Standardization13.9. Morphological preprocessing13.10. Selection and weighting of terminological units13.11. Statistical properties of textual units: lexical laws13.12. Sub-lexical units13.14. Shallow parsing or superficial syntactic analysis13.15. Argumentation models