Whats New? Identifying the Unfolding of New Events in Narratives

• URL: http://arxiv.org/abs/2302.07748v4
• Date: Tue, 8 Aug 2023 08:08:12 GMT
• Title: Whats New? Identifying the Unfolding of New Events in Narratives
• Authors: Seyed Mahed Mousavi, Shohei Tanaka, Gabriel Roccabruna, Koichiro Yoshino, Satoshi Nakamura, Giuseppe Riccardi
• Abstract summary: We study the Information Status (IS) of the events and propose a novel challenging task: the automatic identification of new events in a narrative. We define an event as a triplet of subject, predicate, and object. The event is categorized as new with respect to the discourse context. We annotated a publicly available corpus of narratives with the new events at sentence level using human annotators.
• Score: 11.058053956455545
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Narratives include a rich source of events unfolding over time and context. Automatic understanding of these events provides a summarised comprehension of the narrative for further computation (such as reasoning). In this paper, we study the Information Status (IS) of the events and propose a novel challenging task: the automatic identification of new events in a narrative. We define an event as a triplet of subject, predicate, and object. The event is categorized as new with respect to the discourse context and whether it can be inferred through commonsense reasoning. We annotated a publicly available corpus of narratives with the new events at sentence level using human annotators. We present the annotation protocol and study the quality of the annotation and the difficulty of the task. We publish the annotated dataset, annotation materials, and machine learning baseline models for the task of new event extraction for narrative understanding.

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