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license: apache-2.0
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Z-coref: Thai Coreference and Zero Pronoun Resolution

This is a dataset for Thai Coreference and Zero Pronoun Resolution. Raw textual data was retrieved from Han-Coref. The coreferece labels were re-annotate to include zero pronoun resolution to coreference resolution.

Data Format

The dataset contains 4 columns:

  1. text: Raw text data
  2. clusters: Coreference labels in nested list format. The outter list contains lists of clusters (coreference chains). Each cluster list contains start and end indexes pairs that are refer to the same entities.
  3. mention_type: Type of each start and end indexes pair in clusters.
  4. clusters_strings: String of each start and end indexes pair in clusters.

Annotators

The anotators are Thai native speakers who were not linguists. The annotation process is divided into two steps:

  1. identify mentions.
  2. link the coreferential mentions.

Annotators are asked to indicate mentions; words or phrases that refer to a specific person or organization. Other specific words such as items or locations are ignored.