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- W4385571736 abstract "Event Coreference Resolution (ECR) is the task of linking mentions of the same event either within or across documents. Most mention pairs are not coreferent, yet many that are coreferent can be identified through simple techniques such as lemma matching of the event triggers or the sentences in which they appear. Existing methods for training coreference systems sample from a largely skewed distribution, making it difficult for the algorithm to learn coreference beyond surface matching. Additionally, these methods are intractable because of the quadratic operations needed. To address these challenges, we break the problem of ECR into two parts: a) a heuristic to efficiently filter out a large number of non-coreferent pairs, and b) a training approach on a balanced set of coreferent and non-coreferent mention pairs. By following this approach, we show that we get comparable results to the state of the art on two popular ECR datasets while significantly reducing compute requirements. We also analyze the mention pairs that are “hard” to accurately classify as coreferent or non-coreferentcode repo: mathtt{github.com/ahmeshaf/lemma_ce_coref}." @default.
- W4385571736 created "2023-08-05" @default.
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- W4385571736 date "2023-01-01" @default.
- W4385571736 modified "2023-09-26" @default.
- W4385571736 title "2*n is better than is better than n2: Decomposing Event Coreference Resolution into Two Tractable Problems: Decomposing Event Coreference Resolution into Two Tractable Problems" @default.
- W4385571736 doi "https://doi.org/10.18653/v1/2023.findings-acl.100" @default.
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