---
title: "Resolving Event Coreference with — Kenyon-Dean 2018"
description: "The paper addresses event coreference resolution: deciding which event mentions, within one document or across several, describe the same real-world event."
authors: ["Kian Kenyon-Dean", "Jackie Chi Kit Cheung", "Doina Precup"]
year: 2018
venue: "Proceedings of the Seventh Joint Conference on Lexical and Computational Semantics"
source: "https://aclanthology.org/S18-2001/"
doi: "10.18653/v1/s18-2001"
licence: "CC BY 4.0 (ACL Anthology)"
licence_url: "https://creativecommons.org/licenses/by/4.0/"
summary_licence: "Elamur Cosmic License"
canonical: "https://research.elamur.ai/free/papers/dean-2018-resolving-event-coreference-supervised-representation/"
---
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# Resolving Event Coreference with Supervised Representation Learning and Clustering-Oriented Regularization

**Authors:** [Kian Kenyon-Dean](https://md.research.elamur.ai/free/authors/kian-kenyon-dean/), [Jackie Chi Kit Cheung](https://md.research.elamur.ai/free/authors/jackie-chi-kit-cheung/), [Doina Precup](https://md.research.elamur.ai/free/authors/doina-precup/) · **Year:** 2018 · **Venue:** Proceedings of the Seventh Joint Conference on Lexical and Computational Semantics · **Licence:** [CC BY 4.0 (ACL Anthology)](https://creativecommons.org/licenses/by/4.0/)

**Links:** [Publisher's page](https://aclanthology.org/S18-2001/) · [PDF](https://aclanthology.org/S18-2001.pdf) · [DOI 10.18653/v1/s18-2001](https://doi.org/10.18653/v1/s18-2001) · [OpenAlex](https://openalex.org/W2803395921)

**Citations:** 55 citations (openalex-snapshot · 2026-10-14) · [32](#cited-by) in our library, of the 140673 papers whose bibliographies we read

## Summary
The paper addresses event coreference resolution: deciding which event mentions, within one document or across several, describe the same real-world event. Most earlier systems make pairwise coreference decisions and then combine them into clusters, which can produce inconsistent results. The authors instead learn embeddings that are directly suited to clustering. They train an hourglass-shaped feed-forward network to predict which training-set cluster each mention belongs to, with all singletons grouped into one extra class. The loss adds Clustering-Oriented Regularization (CORE) terms to categorical cross-entropy. These terms push embeddings of coreferent mentions closer together and separate non-coreferent ones under cosine distance. At test time, activations from a middle layer are clustered agglomeratively, optionally starting from a lemma-based initialization. On ECB+ with gold event mentions, the system matches or beats the feature-rich model of Cybulska and Vossen (2015) on all six metrics, while needing less pre-annotated event structure. This suggests that regularizing representations for clustering may also help other clustering problems.

## Key points
- **Data:** Experiments use the ECB+ corpus, which annotates both within- and cross-document coreference. It adds 502 documents to ECB, for a total of 982, to increase lexical diversity.
- **Model variants:** The authors compare CCE, CORE, CORE+CCE and CORE+CCE+LEMMA. The last variant seeds clustering with the lemma-δ baseline of Upadhyay et al. (2016).
- **Training and clustering setup:**
  - Training runs for 100 epochs.
  - Each batch has 272 mentions and is forced to include both coreferent and non-coreferent pairs.
  - Clustering uses single-linkage with cosine similarity.
  - The stopping threshold τ is tuned on validation data to maximize B³.
- **Within-document results:** CORE+CCE+LEMMA gains about 10 points in MUC over both LEMMA-δ and CORE+CCE. It also improves BLANC by 4–5 points.
- **Release:** The code is publicly available at github.com/kiankd/events.

*Our summary of the paper, in our own words — not its text. The work belongs to its authors; read it at the links above.*

Fields: [Linguistics & languages](https://md.research.elamur.ai/free/shelves/linguistics/)

Topics: [Coreference resolution](https://md.research.elamur.ai/free/topics/coreference-resolution/)

## Cited by

Cited by

32 papers of our library cite it (of the 140673 whose bibliographies we read); 17 of them have a page here, 15 not yet.

- [2*n is better than n²: Decomposing Event Coreference Resolution into Two Tractable Problems](https://md.research.elamur.ai/free/papers/ahmed-2023-2-n-is-better-than/)
- [Linear Cross-document Event Coreference Resolution with X-AMR](https://md.research.elamur.ai/free/papers/ahmed-2024-linear-cross-document-event-coreference/)
- [Revisiting Joint Modeling of Cross-document Entity and Event Coreference Resolution](https://md.research.elamur.ai/free/papers/barhom-2019-revisiting-joint-modeling-cross-document/)
- [Cross-document Coreference Resolution over Predicted Mentions](https://md.research.elamur.ai/free/papers/cattan-2021-cross-document-coreference-resolution-over/)
- [Realistic Evaluation Principles for Cross-document Coreference Resolution](https://md.research.elamur.ai/free/papers/cattan-2021-realistic-evaluation-principles-cross-document/)
- [Cross-Document Event Coreference Resolution on Discourse Structure](https://md.research.elamur.ai/free/papers/chen-2023-cross-document-event-coreference-resolution/)
- [A Rationale-centric Counterfactual Data Augmentation Method for Cross-Document Event Coreference Resolution](https://md.research.elamur.ai/free/papers/ding-2024-rationale-centric-counterfactual-data-augmentation/)
- [WEC: Deriving a Large-scale Cross-document Event Coreference dataset from Wikipedia](https://md.research.elamur.ai/free/papers/eirew-2021-wec-deriving-large-scale-cross/)
- [Focus on what matters: Applying Discourse Coherence Theory to Cross Document Coreference](https://md.research.elamur.ai/free/papers/held-2021-focus-what-matters-applying-discourse/)
- [Contrastive Representation Learning for Cross-Document Coreference Resolution of Events and Entities](https://md.research.elamur.ai/free/papers/hsu-2022-contrastive-representation-learning-cross-document/)
- [Paraphrasing vs Coreferring: Two Sides of the Same Coin](https://md.research.elamur.ai/free/papers/meged-2020-paraphrasing-vs-coreferring-two-sides/)
- [Multimodal Cross-Document Event Coreference Resolution Using Linear Semantic Transfer and Mixed-Modality Ensembles](https://md.research.elamur.ai/free/papers/nath-2024-multimodal-cross-document-event-coreference/)
- [Okay, Let's Do This! Modeling Event Coreference with Generated Rationales and Knowledge Distillation](https://md.research.elamur.ai/free/papers/nath-2024-okay-let-s-do-this/)
- [Exploiting Document Structures and Cluster Consistencies for Event Coreference Resolution](https://md.research.elamur.ai/free/papers/tran-2021-exploiting-document-structures-cluster-consistencies/)
- [Improving Event Coreference Resolution Using Document-level and Topic-level Information](https://md.research.elamur.ai/free/papers/xu-2022-improving-event-coreference-resolution-document/)
- [Pairwise Representation Learning for Event Coreference](https://md.research.elamur.ai/free/papers/yu-2022-pairwise-representation-learning-event-coreference/)
- [Event Coreference Resolution with their Paraphrases and Argument-aware Embeddings](https://md.research.elamur.ai/free/papers/zeng-2020-event-coreference-resolution-their-paraphrases/)

## Cite

The paper itself, not this page. BibTeX from the library's record of the work.

```bibtex
@inproceedings{kenyondean2018resolving,
  title = {{Resolving Event Coreference with Supervised Representation Learning and Clustering-Oriented Regularization}},
  author = {Kenyon-Dean, Kian and Cheung, Jackie Chi Kit and Precup, Doina},
  booktitle = {Proceedings of the Seventh Joint Conference on Lexical and Computational Semantics},
  year = {2018},
  doi = {10.18653/v1/s18-2001},
  url = {https://doi.org/10.18653/v1/s18-2001}
}
```

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29 references, 10 of them with a card of ours. ↗ leads to the work, «find» searches for one we have no id for yet.

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