1. Tips and Tricks … with INTEX/NOOJ Tamás Váradi Institute for Linguistics Research Hungarian Academy of Sciences varadi@nytud.hu Max Silberztein University of Franche-Comte max.silberztein@univ-fcomte.fr

2. Outline ● Why INTEX/NOOJ should be a tool of choice? ● raising language awareness ● studying linguistics – lexical analysis ● morphology – paradigms – word formation ● automatic lexical acquisition – syntax ● local grammars – semantic tagging

3. List of useful features ● instant lexical lookup ● linguistically sophisticated lexicon ● intuitive graphical interface ● fast, robust, finite-state technology ● corpus, lecxicon, grammar handled uniformly ● instant confirmation from corpus ● can be used at different levels of competence ● simple corpus query tool ● grammar development environment ● research tool for NLP projects

4. Morphology I - Inflection paradigms handled in the form of fst’s

5. Morphology I - Inflection stem variants processed with operations on strings L = move left erasing character

6. Morphology II derivation ● All the forms derived from the root ‘fran-’ ● Ideal to learn and experiment with morphological segmentation

7. Automatic lexical extraction Store any sequence of letters, which is followed by –ize or –ify in variable $Root Produce the lexical entry: wordform: $Root+$Suf, lemma:$Root part of speech:V synsem:+V

8. Lexical constraints check if the string stored in $Root is in the lexicon as an A, with feature +Nation Produce the lexical entry: wordform: $Root+$Suf, lemma:$Root part of speech:V synsem:+V

9. Syntax ● grammars defined in graphs relying on info stored in the lexicon (minimally lemma and POS)

10. Instant feedback from corpus

11. Labelled bracketing ● hit strings may be tagged (merge mode) ● [NP a soft, slow step NP] ● or replaced with bracketing ● [NP NP]

12. Disambiguation ● Very – Adjective or Adverbs

13. Recursion – embedded graphs

14. An exercise in semantic tagging ● Expressions of time

15. An exercise in semantic tagging ● Expressions of time

16. Finally, not for the faint hearted … ● the big picture

17. Conclusions ● Teaching linguistic analysis by doing it ● INTEX/NooJ is [det THE] technology to use honestly … All welcome to have a go at it Thank you for your attention!