RidgeFT enables replay-free lifelong MGT attribution via frozen encoder, class-wise sufficient statistics, covariance calibration, and closed-form ridge regression updates, outperforming baselines on macro-F1 and retention-adaptation balance.
Overview of autextification at iberlef 2023: Detection and attribution of machine-generated text in multiple domains.arXiv preprint arXiv:2309.11285,
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When New Generators Arrive: Lifelong Machine-Generated Text Attribution via Ridge Feature Transfer
RidgeFT enables replay-free lifelong MGT attribution via frozen encoder, class-wise sufficient statistics, covariance calibration, and closed-form ridge regression updates, outperforming baselines on macro-F1 and retention-adaptation balance.