We experimented with different approaches for training the discriminative models and two different corpora: the french MEDIA corpus (Bonneau-Maynard et al., 2005) and a corpus made available by the European project LUNA 1 (Dinarelli et al., 2009b).
the new contents with respect to our previous work (Dinarelli et al., 2009a) are: • We designed a new sequential structure (SK2) and two new hierarchical tree structures (MULTILEVEL and FEATURES) for re-ranking models (see Section 4.2).