CoNLL-2012 Shared Task: Modeling Multilingual Unrestricted Coreference in OntoNotes
What it is about
The paper describes the CoNLL-2012 shared task: coreference in English, Chinese and Arabic on OntoNotes 5.0. The corpus covers general anaphoric coreference (not only noun phrases, and not limited to a set of entity types), and it comes with integrated layers of parses, semantic roles, word senses and named entities. The task has a closed track (only the provided data, WordNet allowed for English, and a fixed table of number and gender predictions from Bergsma and Lin) and an open track (external resources allowed). Each track has ablation settings: gold mention boundaries, gold mentions, and gold parses, with the main task using no gold mention information. The paper states the format, the preprocessing and the evaluation criteria, and reports the participating systems in sections 5 to 8. I read the abstract, the introduction and the track definitions. I did not read the score tables, so the card gives no shared-task numbers.
Ideas
- I1. Mirror the ablation settings in
coref/src/eval.rs: run the sieve with gold boundaries, with gold mentions, and with gold UD parses, and report the three scores beside the main score. The gap between each setting and the main run says whether the loss is in mention detection, in the parse, or in the resolution rules. - I2. Fixed number and gender table: as the closed track did, make the agreement features in
coref/src/sieve.rsread from one written table in the repo, in BTreeMap order, so that every run of a configuration uses the same agreement data. - I3. Track separation as a rule for claims: a result that uses a resource outside the closed set (WordNet, a gazetteer) is reported under an "open" label in
coref/src/eval.rs, so that no open-track gain is taken for a closed-track one.
For Mova
Code: coref/src/eval.rs (settings and tracks), coref/src/mention.rs (mention boundaries from UD), en/src/dict.rs (the lexicon, for any resource that would count as open track), coref/src/corefud.rs (CoNLL-format input). Chapter: 35. Reference and coreference. Measure: the main score and the three gold-setting scores on one corpus, run twice, to find which layer costs most.
Cite
@inproceedings{pradhan2012conll,
title = {{CoNLL-2012 Shared Task: Modeling Multilingual Unrestricted Coreference in OntoNotes}},
author = {Pradhan, Sameer and Moschitti, Alessandro and Xue, Nianwen and Uryupina, Olga and Zhang, Yuchen},
booktitle = {Joint Conference on EMNLP and CoNLL - Shared Task},
year = {2012},
url = {https://aclanthology.org/W12-4501/}
}References
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