Summary

Czech-PCEDT is based on the Czech part of Prague Czech-English Dependency Treebank 2.0 Coref created at the Charles University, Prague. The texts are manual translations of the texts from the Wall Street Joural section of Penn Treebank.

References

@inproceedings{pcedt2.0coref,
    author = {Nedoluzhko, Anna and Nov{\'a}k, Michal and Cinkov{\'a}, Silvie and Mikulov{\'a}, Marie and M{\'\i}rovsk{\'y}, Ji{\v{r}}{\'\i}},
    title = {Coreference in {P}rague {C}zech-{E}nglish {D}ependency {T}reebank},
    booktitle = {Proceedings of the Tenth International Conference on Language Resources and Evaluation ({LREC}'16)},
    publisher = {European Language Resources Association (ELRA)},
    address = {Portoro{\v{z}}, Slovenia},
    year = {2016},
    pages = {169--176},
}

Changelog

2024-03-28 v1.2

the morpho-syntactic features are no longer converted from the PCEDT a-layer (which has been automatically parsed by an outdated method), but parsed by UDPipe 2 using the czech-pdt-ud-2.12-230717 model
Coreference annotation: If a bracket is in mention span, the paired bracket is added too, if possible.
Added the enhanced relation subtype nsubj:xsubj.
More restrictive use of orphans and empty nodes: Not in non-verbal coordinated sentences.

2023-02-24 v1.1

Removed superfluous empty nodes #Rcp, #Cor, #QCor.
Removed empty nodes depending on the artificial 0:root.
"Bych/bys/by/bychom/byste" in MWTs no longer breaks mention spans.
Improved guessing of pronominal forms for empty nodes.
Functors added also to non-empty nodes.

2022-04-06 v1.0

new format of coreference and anaphora annotations
harmonization of train/dev/test split for corpora containing WSJ documents
Improved conversion from the Prague format, reduced number of discontinuous mentions.
Case-enhanced dependency relations made more consistent.

2021-12-10 v0.2

Fixed attachment of punctuation where required by the UD guidelines.

2021-03-11 v0.1

initial conversion

=== Machine-readable metadata (DO NOT REMOVE!) ================================
Data available since: CorefUD 0.1
License: CC BY-NC-SA 3.0
Includes text: yes
Genre: news
Lemmas: automatic
UPOS: automatic
XPOS: automatic
Features: automatic
Relations: automatic
CorefUD contributors: Nedoluzhko, Anna (1); Novák, Michal (1); Cinková, Silvie (1); Mikulová, Marie (1); Zeman, Daniel (1)
Other contributors: Mírovský, Jiří (1)
Contributors' affiliations: (1) Charles University, Faculty of Mathematics and Physics, Institute of Formal and Applied Linguistics, Prague, Czechia
Contributing: elsewhere
Contact: [email protected]
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