Question-Aware Gaussian Experts for Audio-Visual Question Answering

• URL: http://arxiv.org/abs/2503.04459v3
• Date: Wed, 11 Jun 2025 12:30:39 GMT
• Title: Question-Aware Gaussian Experts for Audio-Visual Question Answering
• Authors: Hongyeob Kim, Inyoung Jung, Dayoon Suh, Youjia Zhang, Sangmin Lee, Sungeun Hong,
• Abstract summary: Audio-Visual Question Answering (AVQA) requires question-based multimodal reasoning and precise temporal grounding.<n>This paper proposes QA-TIGER, a novel framework that explicitly incorporates question information and models continuous temporal dynamics.
• Score: 8.377705744753047
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Audio-Visual Question Answering (AVQA) requires not only question-based multimodal reasoning but also precise temporal grounding to capture subtle dynamics for accurate prediction. However, existing methods mainly use question information implicitly, limiting focus on question-specific details. Furthermore, most studies rely on uniform frame sampling, which can miss key question-relevant frames. Although recent Top-K frame selection methods aim to address this, their discrete nature still overlooks fine-grained temporal details. This paper proposes QA-TIGER, a novel framework that explicitly incorporates question information and models continuous temporal dynamics. Our key idea is to use Gaussian-based modeling to adaptively focus on both consecutive and non-consecutive frames based on the question, while explicitly injecting question information and applying progressive refinement. We leverage a Mixture of Experts (MoE) to flexibly implement multiple Gaussian models, activating temporal experts specifically tailored to the question. Extensive experiments on multiple AVQA benchmarks show that QA-TIGER consistently achieves state-of-the-art performance. Code is available at https://aim-skku.github.io/QA-TIGER/

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