Prague Discourse Treebank 4.0

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Prague Discourse Treebank 4.0 (PDiT 4.0)
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Authors
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Pavlína Synková (Charles University, Faculty of Mathematics and Physics),
Jiří Mírovský (Charles University, Faculty of Mathematics and Physics),
Marie Paclíková (Charles University, Faculty of Arts),
Lucie Poláková (Charles University, Faculty of Mathematics and Physics),

and from previous versions:
Magdaléna Rysová, Veronika Scheller, Jana Zdeňková, Šárka Zikánová, Eva Hajičová


Introduction
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The Prague Discourse Treebank 4.0 (PDiT 4.0; Synková et al., 2024) is
an annotation of discourse relations marked by primary and secondary
discourse connectives in the whole data of the Prague Dependency
Treebank - Consolidated 2.0 (PDT-C 2.0; Hajič et al., 2024).
With respect to the previous versions, annotating discourse relations
in the whole PDT-C 2.0 means a significant increase in the size
of the annotated data.

PDiT 4.0 annotates discourse relations in the whole PDT-C 2.0,
i.e. in all of its four subcorpora:

- Prague Dependency Treebank (PDT); in the previous versions,
  PDiT only covered these data
- Prague Czech-English Dependency Treebank, the Czech part (PCEDT-cz);
  newly annotated in PDiT 4.0
- Prague Dependency Treebank of Spoken Czech (PDTSC); newly annotated
  in PDiT 4.0
- Faust; newly annotated in PDiT 4.0

Already since version 3.0, PDiT uses two taxonomies of types of discourse
relations:

- the original Prague taxonomy of discourse types, and
- the Penn Discourse Treebank 3.0 (PDTB 3.0; Prasad et al., 2019) taxonomy
  of discourse senses.

Also since version 3.0, the PDiT data are offered in two formats:

- the native format of the PDT-C 2.0, i.e. the Prague Markup Language,
  where the discourse relations are annotated on top of deep-syntax
  dependency trees (tectogrammatics), and
- the Penn Discourse Treebank 3.0 (PDTB 3.0; Prasad et al., 2019) format
  of stand-off discourse annotation on  . . .