CLAP-S: Support Set Based Adaptation for Downstream Fiber-optic Acoustic Recognition

• URL: http://arxiv.org/abs/2501.09877v1
• Date: Thu, 16 Jan 2025 23:22:17 GMT
• Title: CLAP-S: Support Set Based Adaptation for Downstream Fiber-optic Acoustic Recognition
• Authors: Jingchen Sun, Shaobo Han, Wataru Kohno, Changyou Chen,
• Abstract summary: Contrastive Language-Audio Pretraining (CLAP) models have demonstrated unprecedented performance in acoustic signal recognition tasks. We propose a support-based adaptation method, CLAP-S, which linearly interpolates a CLAP Adapter with the Support Set. Experimental results show that our method delivers competitive performance on both laboratory-recorded fiber-optic ESC-50 datasets and a real-world fiber-optic gunshot-firework dataset.
• Score: 28.006925515022882
• License:
• Abstract: Contrastive Language-Audio Pretraining (CLAP) models have demonstrated unprecedented performance in various acoustic signal recognition tasks. Fiber-optic-based acoustic recognition is one of the most important downstream tasks and plays a significant role in environmental sensing. Adapting CLAP for fiber-optic acoustic recognition has become an active research area. As a non-conventional acoustic sensor, fiber-optic acoustic recognition presents a challenging, domain-specific, low-shot deployment environment with significant domain shifts due to unique frequency response and noise characteristics. To address these challenges, we propose a support-based adaptation method, CLAP-S, which linearly interpolates a CLAP Adapter with the Support Set, leveraging both implicit knowledge through fine-tuning and explicit knowledge retrieved from memory for cross-domain generalization. Experimental results show that our method delivers competitive performance on both laboratory-recorded fiber-optic ESC-50 datasets and a real-world fiber-optic gunshot-firework dataset. Our research also provides valuable insights for other downstream acoustic recognition tasks. The code and gunshot-firework dataset are available at https://github.com/Jingchensun/clap-s.

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