Multimodal UNcommonsense: From Odd to Ordinary and Ordinary to Odd

Fuente: arXiv
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Hauptverfasser: Son, Yejin, Kim, Saejin, Min, Dongjun, Yu, Younjae
Format: Preprint
Veröffentlicht: 2026
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author Son, Yejin
Kim, Saejin
Min, Dongjun
Yu, Younjae
author_facet Son, Yejin
Kim, Saejin
Min, Dongjun
Yu, Younjae
contents Commonsense reasoning in multimodal contexts remains a foundational challenge in artificial intelligence. We introduce Multimodal UNcommonsense(MUN), a benchmark designed to evaluate models' ability to handle scenarios that deviate from typical visual or contextual expectations. MUN pairs visual scenes with surprising or unlikely outcomes described in natural language, prompting models to either rationalize seemingly odd images using everyday logic or uncover unexpected interpretations in ordinary scenes. To support this task, we propose a retrieval-based in-context learning (R-ICL) framework that transfers reasoning capabilities from larger models to smaller ones without additional training. Leveraging a novel Multimodal Ensemble Retriever (MER), our method identifies semantically relevant exemplars even when image and text pairs are deliberately discordant. Experiments show an average improvement of 8.3% over baseline ICL methods, highlighting the effectiveness of R-ICL in low-frequency, atypical settings. MUN opens new directions for evaluating and improving visual-language models' robustness and adaptability in real-world, culturally diverse, and non-prototypical scenarios.
format Preprint
id arxiv_https___arxiv_org_abs_2602_01561
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Multimodal UNcommonsense: From Odd to Ordinary and Ordinary to Odd
Son, Yejin
Kim, Saejin
Min, Dongjun
Yu, Younjae
Computer Vision and Pattern Recognition
Artificial Intelligence
Commonsense reasoning in multimodal contexts remains a foundational challenge in artificial intelligence. We introduce Multimodal UNcommonsense(MUN), a benchmark designed to evaluate models' ability to handle scenarios that deviate from typical visual or contextual expectations. MUN pairs visual scenes with surprising or unlikely outcomes described in natural language, prompting models to either rationalize seemingly odd images using everyday logic or uncover unexpected interpretations in ordinary scenes. To support this task, we propose a retrieval-based in-context learning (R-ICL) framework that transfers reasoning capabilities from larger models to smaller ones without additional training. Leveraging a novel Multimodal Ensemble Retriever (MER), our method identifies semantically relevant exemplars even when image and text pairs are deliberately discordant. Experiments show an average improvement of 8.3% over baseline ICL methods, highlighting the effectiveness of R-ICL in low-frequency, atypical settings. MUN opens new directions for evaluating and improving visual-language models' robustness and adaptability in real-world, culturally diverse, and non-prototypical scenarios.
title Multimodal UNcommonsense: From Odd to Ordinary and Ordinary to Odd
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2602.01561