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Exposé de Tatiana Bladier

Vendredi 18 Octobre 2019, 12:30 to 13:30
Organisation: 
Marie Candito (LLF)
Lieu: 

LLF – Bât. ODG – 5e étage – Salle du conseil (533)

Tatiana Bladier (Heinrich Heine University of Dusseldorf)

In my talk I will present ongoing work on data-driven frame-semantic parsing for French with Lexicalized Tree Adjoining Grammars [LTAG; 4] using French FrameNet data [1, 2]. I am using a supertagging approach combined with deep learning to facilitate the task assigning the core semantic roles and a subsequent frame recognition. In my talk, I will present the results of two experiments with joint prediction of semantic roles [3], with and without using the supertag features:

  • predicting the full spans of semantic roles;
  • predicting semantic heads in the first step (i.e. 1-token spans) and using dependency graphs for a subsequent reconstruction of the full span of the semantic role.

I will also present a hybrid approach to full semantic parsing with French FrameNet enriched with proto-frames built from deep syntactic annotations and discuss the possible strengths and the weaknesses of the approach.

References

  • [1] Candito, M., Amsili, P., Barque, L., Benamara Zitoune, F., De Chalendar, G., Djemaa, M., Haas, P., Huyghe, R., Yannick Mathieu, Y., Muller, P., et al. (2014). Developing a french framenet: Methodology and first results.
  • [2] Djemaa, M., Candito, M., Muller, P., and Vieu, L. (2016). Corpus annotation within the french framenet: a domain-by-domain methodology.
  • [3] He, L., Lee, K., Levy, O., and Zettlemoyer, L. (2018). Jointly predicting predicates and arguments in neural semantic role labeling. arXiv preprint arXiv:1805.04787.
  • [4] Joshi, A. K. and Schabes, Y. (1997). Tree-adjoining grammars. In Handbook of formal languages, pages 69–123. Springer.