dwadden / dygiepp

Span-based system for named entity, relation, and event extraction.
MIT License
580 stars 120 forks source link

Coreference propagation on ACE05 #21

Closed khuangaf closed 4 years ago

khuangaf commented 4 years ago

In the paper you mention as ACE does not have coreference annotation, you use OntoNotes for coreference propagation. I was wondering if it is possible to predict coreference on ACE using the current trained model?

dwadden commented 4 years ago

Unfortunately no. Coref didn't help at all on ACE, so we didn't end up releasing the co-training code. I'll try to dig up the ontonotes data to see if I can train a model for this, but I'm not sure I've got it in the required format anymore.

khuangaf commented 4 years ago

I see. Thank you very much!

khuangaf commented 4 years ago

I have one quick question regarding ACE05 coreference resolution. In the paper you states that "the ACE data set lacks coreference annotations". However, the original ACE05 annotation contains <entity> and <entity_mention> tags. I am wondering why it does not count as coreference for all <entity_mention> under the same <entity> tag?

dwadden commented 4 years ago

Hmm that's a great point, I hadn't thought of that. I'd definitely welcome a PR to preprocess the data such that ACE mentions are linked via coreference clusters.

serenalotreck commented 3 years ago

Just wanted to clarify -- the current ACE05 relations model doesn't include coreference propogation, so it's equivalent to the "lightweight" versions of the other datasets' models?

Thanks!

dwadden commented 3 years ago

Yep, that's correct!