Safeguarding Multimodal Knowledge Copyright in the RAG-as-a-Service Environment
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arXiv
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| Auteurs principaux: | , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866908857653002240 |
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| author | Chen, Tianyu Lou, Jian Wang, Wenjie |
| author_facet | Chen, Tianyu Lou, Jian Wang, Wenjie |
| contents | As Retrieval-Augmented Generation (RAG) evolves into service-oriented platforms (Rag-as-a-Service) with shared knowledge bases, protecting the copyright of contributed data becomes essential. Existing watermarking methods in RAG focus solely on textual knowledge, leaving image knowledge unprotected. In this work, we propose AQUA, the first watermark framework for image knowledge protection in Multimodal RAG systems. AQUA embeds semantic signals into synthetic images using two complementary methods: acronym-based triggers and spatial relationship cues. These techniques ensure watermark signals survive indirect watermark propagation from image retriever to textual generator, being efficient, effective and imperceptible. Experiments across diverse models and datasets show that AQUA enables robust, stealthy, and reliable copyright tracing, filling a key gap in multimodal RAG protection. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_10030 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Safeguarding Multimodal Knowledge Copyright in the RAG-as-a-Service Environment Chen, Tianyu Lou, Jian Wang, Wenjie Cryptography and Security Artificial Intelligence As Retrieval-Augmented Generation (RAG) evolves into service-oriented platforms (Rag-as-a-Service) with shared knowledge bases, protecting the copyright of contributed data becomes essential. Existing watermarking methods in RAG focus solely on textual knowledge, leaving image knowledge unprotected. In this work, we propose AQUA, the first watermark framework for image knowledge protection in Multimodal RAG systems. AQUA embeds semantic signals into synthetic images using two complementary methods: acronym-based triggers and spatial relationship cues. These techniques ensure watermark signals survive indirect watermark propagation from image retriever to textual generator, being efficient, effective and imperceptible. Experiments across diverse models and datasets show that AQUA enables robust, stealthy, and reliable copyright tracing, filling a key gap in multimodal RAG protection. |
| title | Safeguarding Multimodal Knowledge Copyright in the RAG-as-a-Service Environment |
| topic | Cryptography and Security Artificial Intelligence |
| url | https://arxiv.org/abs/2506.10030 |