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Self-Captioning Multimodal Interaction Tuning: Amplifying Exploitable Redundancies for Robust Vision Language Models

Summary

Current vision language models face hallucination and robustness issues against ambiguous or corrupted modalities. We hypothesize that these issues can be addressed by exploiting the shared information between modalities to compensate for the impaired one. To this end, we analyze multimodal interactions -- redundant (shared), unique (exclusive), and synergistic (emergent) task-relevant information provided by the modalities -- to determine their impacts on model reliability. Specifically, amplifying redundant interactions would increase this exploitable shared information to resolve these issues; yet, modern instruction datasets often eliminate redundancies to prioritize visual grounding. We bridge this gap through a self-captioning workflow featuring a Multimodal Interaction Gate: a mech…

SourcearXiv Computer VisionAuthor: Yuriel Ryan, Hei Man Ip, Adriel Kuek, Paul Pu Liang, Roy Ka-Wei Lee
Self-Captioning Multimodal Interaction Tuning: Amplifying Exploitable Redundancies for Robust Vision Language Models
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[2605.08145] Self-Captioning Multimodal Interaction Tuning: Amplifying Exploitable Redundancies for Robust Vision Language Models

[Submitted on 3 May 2026]

Title:Self-Captioning Multimodal Interaction Tuning: Amplifying Exploitable Redundancies for Robust Vision Language Models

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Abstract:Current vision language models face hallucination and robustness issues against ambiguous or corrupted modalities. We hypothesize that these issues can be addressed by exploiting the shared information between modalities to compensate for the impaired one. To this end, we analyze multimodal interactions -- redundant (shared), unique (exclusive), and synergistic (emergent) task-relevant information provided by the modalities -- to determine their impacts on model reliability. Specifically, amplifying redundant interactions would increase this exploitable shared information to resolve these issues; yet, modern instruction datasets often eliminate redundancies to prioritize visual grounding. We bridge this gap through a self-captioning workflow featuring a \textsc{Multimodal Interaction Gate}: a mechanism to convert unique interactions into redundant interactions. Our findings suggest that increasing redundancy can reduce visual induced errors by 38.3\% and improve consistency by 16.8\%.

Comments: Accepted to ICML 2026

Subjects:

Computer Vision and Pattern Recognition (cs.CV); Artificial Intelligence (cs.AI); Machine Learning (cs.LG)

Cite as: arXiv:2605.08145 [cs.CV]

(or arXiv:2605.08145v1 [cs.CV] for this version)

https://doi.org/10.48550/arXiv.2605.08145

arXiv-issued DOI via DataCite

Submission history

From: Yuriel Ryan [view email] [v1] Sun, 3 May 2026 06:25:45 UTC (33,690 KB)

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Key points and analysis

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Key points

  • Proposes self-captioning multimodal interaction tuning to enhance VLM robustness by amplifying redundancy.
  • Introduces a Multimodal Interaction Gate to convert unique interactions into redundant ones.
  • Reduces visual-induced errors by 38.3% and improves consistency by 16.8%.
  • Accepted to ICML 2026.

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