GROOViST: A Metric for Grounding Objects in Visual Storytelling

Aditya Surikuchi, Sandro Pezzelle, Raquel Fernández


Abstract
A proper evaluation of stories generated for a sequence of images—the task commonly referred to as visual storytelling—must consider multiple aspects, such as coherence, grammatical correctness, and visual grounding. In this work, we focus on evaluating the degree of grounding, that is, the extent to which a story is about the entities shown in the images. We analyze current metrics, both designed for this purpose and for general vision-text alignment. Given their observed shortcomings, we propose a novel evaluation tool, GROOViST, that accounts for cross-modal dependencies, temporal misalignments (the fact that the order in which entities appear in the story and the image sequence may not match), and human intuitions on visual grounding. An additional advantage of GROOViST is its modular design, where the contribution of each component can be assessed and interpreted individually.
Anthology ID:
2023.emnlp-main.202
Volume:
Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
3331–3339
Language:
URL:
https://aclanthology.org/2023.emnlp-main.202
DOI:
10.18653/v1/2023.emnlp-main.202
Bibkey:
Cite (ACL):
Aditya Surikuchi, Sandro Pezzelle, and Raquel Fernández. 2023. GROOViST: A Metric for Grounding Objects in Visual Storytelling. In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, pages 3331–3339, Singapore. Association for Computational Linguistics.
Cite (Informal):
GROOViST: A Metric for Grounding Objects in Visual Storytelling (Surikuchi et al., EMNLP 2023)
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PDF:
https://aclanthology.org/2023.emnlp-main.202.pdf
Video:
 https://aclanthology.org/2023.emnlp-main.202.mp4