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arXiv 2602.00701cs.MMcs.CVcs.LGcs.SD
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跨模态二进制注意力:面向音频视觉学习的高效融合框架

Cross-Modal Binary Attention: An Energy-Efficient Fusion Framework for Audio-Visual Learning

Peter L. Reichertz Institute for Medical Informatics of TU Braunschweig and Hannover Medical School(图林根工业大学和汉诺威医学院医学信息学研究所);Lower Saxony Center for AI and Causal Methods in Medicine (CAIMed)(下萨克森人工智能与因果医学方法中心)

Mohamed Saleh, Zahra Ahmadi

AI总结:

提出CMQKA和SNNergy,通过高效二进制操作实现线性复杂度的跨模态融合,显著提升音频视觉任务的能耗效率和性能

摘要:

有效的多模态融合需要能够捕捉复杂跨模态依赖关系且计算上可扩展的机制,以适应实际部署。现有的音频-视觉融合方法面临根本性的权衡:基于注意力的方法能够有效建模跨模态关系,但会带来二次计算复杂性,从而阻碍了层次化、多尺度架构的实现;而高效融合策略依赖于简单的拼接,无法提取互补的跨模态信息。我们引入CMQKA,一种新颖的跨模态融合机制,通过高效的二进制操作实现线性O(N)复杂度,从而实现了传统注意力机制无法实现的可扩展层次化融合。CMQKA采用双向跨模态查询-键注意力来提取互补的时空特征,并利用可学习的残差融合来保留模态特定的特征,同时通过跨模态信息丰富表示。在CMQKA的基础上,我们提出了SNNergy,一个能耗高效的多模态融合框架,具有层次化架构,通过逐步降低空间分辨率并增加语义抽象来处理输入。这种多尺度融合能力使框架能够捕捉模态间的局部模式和全局上下文。通过事件驱动的二进制脉冲操作实现,SNNergy在保持融合有效性的同时实现了显著的能耗效率,并在具有挑战性的音频-视觉基准上取得了新的最先进的结果,包括CREMA-D、AVE和UrbanSound8K-AV,显著优于现有多模态融合基线。我们的框架通过引入可扩展的融合机制,推动了多模态融合的发展,实现了具有实际能耗效率的层次化跨模态整合,适用于实际的音频-视觉智能系统。

英文摘要:

Effective multimodal fusion requires mechanisms that can capture complex cross-modal dependencies while remaining computationally scalable for real-world deployment. Existing audio-visual fusion approaches face a fundamental trade-off: attention-based methods effectively model cross-modal relationships but incur quadratic computational complexity that prevents hierarchical, multi-scale architectures, while efficient fusion strategies rely on simplistic concatenation that fails to extract complementary cross-modal information. We introduce CMQKA, a novel cross-modal fusion mechanism that achieves linear O(N) complexity through efficient binary operations, enabling scalable hierarchical fusion previously infeasible with conventional attention. CMQKA employs bidirectional cross-modal Query-Key attention to extract complementary spatiotemporal features and uses learnable residual fusion to preserve modality-specific characteristics while enriching representations with cross-modal information. Building upon CMQKA, we present SNNergy, an energy-efficient multimodal fusion framework with a hierarchical architecture that processes inputs through progressively decreasing spatial resolutions and increasing semantic abstraction. This multi-scale fusion capability allows the framework to capture both local patterns and global context across modalities. Implemented with event-driven binary spike operations, SNNergy achieves remarkable energy efficiency while maintaining fusion effectiveness and establishing new state-of-the-art results on challenging audio-visual benchmarks, including CREMA-D, AVE, and UrbanSound8K-AV, significantly outperforming existing multimodal fusion baselines. Our framework advances multimodal fusion by introducing a scalable fusion mechanism that enables hierarchical cross-modal integration with practical energy efficiency for real-world audio-visual intelligence systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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