Mapping Explicit and Implicit Discourse Relations between the RST-DT and the PDTB 3.0

Nelson Filipe Costa, Nadia Sheikh, Leila Kosseim

Abstract: In this paper we propose a first empirical mapping between the RST-DT and the PDTB 3.0. We provide an original algorithm which allowed the mapping of 6,510 (80.0%) explicit and implicit discourse relations between the overlapping articles of the RST-DT and PDTB 3.0 discourse annotated corpora. Results of the mapping show that while it is easier to align segments of implicit discourse relations, the mapping obtained between the aligned explicit discourse relations is more unambiguous.