Challenge: Recent advances in event argument extraction (EAE) involve incorporating useful auxiliary information into models during training and inference.
Approach: They propose a method that uses two prefixes to learn from different events and templates.
Outcome: The proposed method achieves state-of-the-art performance on four datasets . it can leverage possible connections between different events and capture relevant information from the prefix .

Similar Papers

Dynamic Prefix-Tuning for Generative Template-based Event Extraction (2022.acl-long)

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Challenge: Experimental results show that our model achieves competitive results with the state-of-the-art classification-based model OneIE on ACE 2005.
Approach: They propose a generative template-based event extraction method with dynamic prefix . they integrate context information with type-specific prefixes to learn a context-specific name for each context .
Outcome: The proposed method achieves competitive results with state-of-the-art model OneIE on ACE 2005 and performs well on ERE.
Contextualized Soft Prompts for Extraction of Event Arguments (2023.findings-acl)

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Challenge: Existing prompt-based methods for event argument extraction rely on discrete and manually-designed prompts that cannot exploit specific context for each example.
Approach: They propose a prompt-based method that introduces soft prompts to facilitate encoding of individual example context and multiple relevant documents to boost EAE.
Outcome: The proposed method extensively evaluates on benchmark datasets to demonstrate its benefits with state-of-the-art performance.
Bi-Directional Iterative Prompt-Tuning for Event Argument Extraction (2022.emnlp-main)

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Challenge: Existing prompt-tuning methods for event argument extraction lack entity information . eAE is a key step of event extraction, but it requires a pre-trained language model to extract event arguments.
Approach: They propose a prompt-tuning method that takes advantage of entity information and pre-trained language models.
Outcome: The proposed method outperforms the state-of-the-art prompt-tuning methods on an english dataset.
EA2E: Improving Consistency with Event Awareness for Document-Level Argument Extraction (2022.findings-naacl)

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Challenge: Recent work on document-level event argument extraction models each individual event in isolation and therefore causes inconsistency among extracted arguments across events.
Approach: They propose an event-aware argument extraction model with augmented context to improve consistency . they hypothesize that participants tend to play consistent roles across multiple events in a document .
Outcome: The proposed model improves consistency and accuracy of arguments extracted from documents.
Demonstration Retrieval-Augmented Generative Event Argument Extraction (2024.lrec-main)

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Challenge: Experimental results show that our method outperforms all strong baselines and can be generalized to various datasets.
Approach: They propose a generative EAE that uses event knowledge-injected generator and demonstration retriever to generate event arguments from training data.
Outcome: The proposed method outperforms baselines and can be generalized to various datasets.
Transfer Learning from Semantic Role Labeling to Event Argument Extraction with Template-based Slot Querying (2022.emnlp-main)

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Challenge: Existing methods for event argument extraction are limited by the limited amount of annotations available.
Approach: They propose to use SRL annotations for event argument extraction . they propose to specify natural language-like queries to tackle label mismatch problem .
Outcome: The proposed model achieves impressive zero-shot results on English benchmarks . it also provides benefits in low-resource cases, where few annotations are available .
AMPERE: AMR-Aware Prefix for Generation-Based Event Argument Extraction Model (2023.acl-long)

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Challenge: Existing generation-based EAE models focus on problem re-formulation and prompt design without incorporating additional information that has been shown to be effective for classification-based models.
Approach: They propose to incorporate AMR into generation-based EAE models by generating AMR-aware prefixes for every layer of the generation model.
Outcome: The proposed model generates AMR-aware prefixes for every layer of the generation model and improves the generation.
Resource-Enhanced Neural Model for Event Argument Extraction (2020.findings-emnlp)

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Challenge: Existing work on event argument extraction (EE) is limited due to data scarcity and lack of a model encoder.
Approach: They propose to capture the long-range dependency between an event trigger and a distant event argument using unlabeled data.
Outcome: Experiments on the English ACE 2005 benchmark show that the proposed method achieves a new state-of-the-art.
Beyond Single-Event Extraction: Towards Efficient Document-Level Multi-Event Argument Extraction (2024.findings-acl)

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Challenge: mainstream event argument extraction methods process each event in isolation, resulting in inefficient inference and ignoring correlations among multiple events.
Approach: They propose a multi-event argument argument extraction model which extracts arguments from all events simultaneously.
Outcome: The proposed model performs better on four public datasets while saving time.
Query and Extract: Refining Event Extraction as Type-oriented Binary Decoding (2022.findings-acl)

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Challenge: Existing approaches to event extraction are limited to a set of pre-defined types.
Approach: They propose a natural language query framework that uses event types and argument roles to extract candidate triggers and arguments from input text.
Outcome: The proposed framework outperforms existing methods on zero-shot event extraction.

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