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De-mark: Watermark Removal in Large Language Models

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arxiv 2410.13808 v2 pith:VTJDPJWI submitted 2024-10-17 cs.CL

De-mark: Watermark Removal in Large Language Models

classification cs.CL
keywords watermarkde-marklanguagemodelsremovalwatermarkingadvancedaids
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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Watermarking techniques offer a promising way to identify machine-generated content via embedding covert information into the contents generated from language models (LMs). However, the robustness of the watermarking schemes has not been well explored. In this paper, we present De-mark, an advanced framework designed to remove n-gram-based watermarks effectively. Our method utilizes a novel querying strategy, termed random selection probing, which aids in assessing the strength of the watermark and identifying the red-green list within the n-gram watermark. Experiments on popular LMs, such as Llama3 and ChatGPT, demonstrate the efficiency and effectiveness of De-mark in watermark removal and exploitation tasks.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. RLSpoofer: A Lightweight Evaluator for LLM Watermark Spoofing Resilience

    cs.CR 2026-04 unverdicted novelty 7.0

    RLSpoofer trains a 4B model on 100 watermarked paraphrase pairs to spoof PF watermarks at 62% success rate, far exceeding baselines trained on up to 10,000 samples.

  2. Towards Robust Content Watermarking Against Removal and Forgery Attacks

    cs.CV 2026-04 unverdicted novelty 6.0

    ISTS watermarking dynamically controls injection based on prompt semantics and uses two-sided detection to resist removal and forgery attacks in diffusion models.

  3. GoCoMA: Hyperbolic Multimodal Representation Fusion for Large Language Model-Generated Code Attribution

    cs.CL 2026-03 unverdicted novelty 6.0

    GoCoMA fuses code stylometry and binary artifact images via hyperbolic Poincaré ball projection and geodesic-cosine attention to attribute LLM-generated code, outperforming baselines on CoDET-M4 and LLMAuthorBench.