IncreFA: Breaking the Static Wall of Generative Model Attribution

• URL: http://arxiv.org/abs/2604.17736v2
• Date: Tue, 21 Apr 2026 07:54:44 GMT
• Title: IncreFA: Breaking the Static Wall of Generative Model Attribution
• Abstract summary: IncreFA is a framework that redefines attribution as a structured incremental learning problem.<n>It exploits the hierarchical relationships among generative architectures and coupling them with continual adaptation.<n>It achieves state-of-the-art attribution accuracy and 98.93% unseen detection under a temporally ordered open-set protocol.
• Score: 32.705532220167505
• License: http://creativecommons.org/publicdomain/zero/1.0/
• Abstract: As AI generative models evolve at unprecedented speed, image attribution has become a moving target. New diffusion, adversarial and autoregressive generators appear almost monthly, making existing watermark, classifier and inversion methods obsolete upon release. The core problem lies not in model recognition, but in the inability to adapt attribution itself. We introduce IncreFA, a framework that redefines attribution as a structured incremental learning problem, allowing the system to learn continuously as new generative models emerge. IncreFA departs from conventional incremental learning by exploiting the hierarchical relationships among generative architectures and coupling them with continual adaptation. It integrates two mutually reinforcing mechanisms: (1) Hierarchical Constraints, which encode architectural hierarchies through learnable orthogonal priors to disentangle family-level invariants from model-specific idiosyncrasies; and (2) a Latent Memory Bank, which replays compact latent exemplars and mixes them to generate pseudo-unseen samples, stabilising representation drift and enhancing open-set awareness. On the newly constructed Incremental Attribution Benchmark (IABench) covering 28 generative models released between 2022 and 2025, IncreFA achieves state-of-the-art attribution accuracy and 98.93% unseen detection under a temporally ordered open-set protocol. Code will be available at https://github.com/Ant0ny44/IncreFA.

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