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Human Label Variation in Coreference (Hlava Cor)
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Authors
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Anna Nedoluzhko (Charles University, Faculty of Mathematics and Physics)
Jiří Mírovský (Charles University, Faculty of Mathematics and Physics)
Šárka Zikánová (Charles University, Faculty of Mathematics and Physics)
Eva Hajičová (Charles University, Faculty of Mathematics and Physics)
Bianca Chuffartová 
Šárka Dohnalová (Charles University, Faculty of Arts)
Lucie Hartmanová (Charles University, Faculty of Arts)  
Eliška Nodlová (Charles University, Faculty of Arts)
Dominik Teska (Charles University, Faculty of Arts)
Františka Zikánová


Introduction
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Human Label Variation in Coreference (Hlava Cor) is a collection
of commented multiple annotations (three annotators) of coreferential
relations in Czech, i.e. the annotation of expressions that refer
to the same extra-linguistic entity, concept, or situation.
Given an anaphoric expression, annotators were instructed to identify
a coreferential expression in the preceding context (if one exists)
and to comment on their decision. The main aim of the annotation
is to capture variation in the interpretation of coreference among
readers. The dataset includes both written and spoken contexts.
For detailed and up-to-date information about the corpus,
please visit: https://ufal.mff.cuni.cz/hvar/hlava-cor


Data Description
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Hlava Cor comprises 1,024 cases (a sentence + adjacent and distant
contexts), each annotated independently by three annotators
in parallel. The annotators' decisions are documented
in the "Commentary" columns.

The texts come from three sources:
- the Prague Dependency Treebank - Consolidated 1.0
  (Hajič et al., 2020) (this is the main resource)
- Czech Academic Corpus 2.0 (Hladká et al., 2008)
- iRozhlas archive (https://www.irozhlas.cz/zpravy-archiv)


Data Source and Format
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