Advancing Multimodal In-Context Learning in Large Vision-Language Models with Task-aware Demonstrations

• URL: http://arxiv.org/abs/2503.04839v2
• Date: Sun, 06 Apr 2025 20:41:41 GMT
• Title: Advancing Multimodal In-Context Learning in Large Vision-Language Models with Task-aware Demonstrations
• Authors: Yanshu Li,
• Abstract summary: Multimodal in-context learning (ICL) has emerged as a key capability of Large Vision-Language Models (LVLMs)<n>We shed light on the core mechanism underlying multimodal ICL, identifying task mapping as a crucial factor in configuring robust in-context demonstration sequences.<n>We propose textitSabER, a lightweight yet powerful decoder-only transformer equipped with task-aware attention.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Multimodal in-context learning (ICL) has emerged as a key capability of Large Vision-Language Models (LVLMs), driven by their increasing scale and applicability. Despite its promise, effective ICL in the multimodal setting remains challenging due to the inherent complexity of image-text inputs and the high sensitivity of ICL performance to input configurations. In this work, we shed light on the core mechanism underlying multimodal ICL, identifying task mapping as a crucial factor in configuring robust in-context demonstration (ICD) sequences. Building on these insights, we propose \textit{SabER}, a lightweight yet powerful decoder-only transformer equipped with task-aware attention, which intelligently selects and arranges ICDs from a demonstration library in an autoregressive fashion. This design enables fine-grained feature extraction and cross-modal reasoning, iteratively refining task mapping to generate high-quality ICD sequences. Through extensive experiments covering five LVLMs and nine benchmark datasets, SabER not only demonstrates strong empirical performance, but also provides deeper understanding of how task semantics interact with multimodal ICDs. Our findings highlight the importance of principled ICD sequence configuration and open new avenues to enhance multimodal ICL in a wide range of real-world scenarios.

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