Are LLMs Good Annotators for Discourse-level Event Relation Extraction?

• URL: http://arxiv.org/abs/2407.19568v2
• Date: Mon, 23 Sep 2024 21:25:16 GMT
• Title: Are LLMs Good Annotators for Discourse-level Event Relation Extraction?
• Authors: Kangda Wei, Aayush Gautam, Ruihong Huang,
• Abstract summary: Large Language Models (LLMs) have demonstrated proficiency in a wide array of natural language processing tasks. Our study reveals a notable underperformance of LLMs compared to the baseline established through supervised learning.
• Score: 15.365993658296016
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Large Language Models (LLMs) have demonstrated proficiency in a wide array of natural language processing tasks. However, its effectiveness over discourse-level event relation extraction (ERE) tasks remains unexplored. In this paper, we assess the effectiveness of LLMs in addressing discourse-level ERE tasks characterized by lengthy documents and intricate relations encompassing coreference, temporal, causal, and subevent types. Evaluation is conducted using an commercial model, GPT-3.5, and an open-source model, LLaMA-2. Our study reveals a notable underperformance of LLMs compared to the baseline established through supervised learning. Although Supervised Fine-Tuning (SFT) can improve LLMs performance, it does not scale well compared to the smaller supervised baseline model. Our quantitative and qualitative analysis shows that LLMs have several weaknesses when applied for extracting event relations, including a tendency to fabricate event mentions, and failures to capture transitivity rules among relations, detect long distance relations, or comprehend contexts with dense event mentions.

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