RoME: Robust Mixture of Low-Rank Experts against Multiple Adversarial Perturbations
On the map: Mixture-of-experts → Vision mixture-of-experts
Abstract (arXiv)
Multi-perturbation adversarial training (MAT) aims to achieve robustness against multiple ℓp perturbations but suffers from robustness trade-offs between different threats. To address this, we employ a mixture of experts (MoE) to route different threats through distinct model pathways. However, naive application of MoE encounters two critical challenges: experts tend to overlook threat-specific features and redundantly capture features shared across threats, and gating networks suffer from threat-agnostic routing where they learn nearly identical routing patterns across threats, thus preventing the construction of threat-specific model pathways. To this end, we propose Robust Mixture of Low-Rank Experts (RoME), where each expert is a low-rank additive update to the shared backbone, allowing it to capture threat-common features while experts focus on threat-specific information. To address threat-agnostic routing, RoME introduces (i) dual-scale gating that exploits threat-discriminative signals from local and global level features, and (ii) threat-guided gating diversification that enforces diverse expert utilization across threats. Extensive experiments demonstrate that RoME outperforms existing state-of-the-art MAT in union robustness and natural accuracy and improves robustness against unseen threats. Codes are available at https://github.com/wkim97/RoME.
Key facts. No citing papers in the map yet (data through 14 Oct 2026). Placed in Vision mixture-of-experts, one of 12 directions in Mixture-of-experts. Builds on 58 of its 76 references that are in the map. First posted on arXiv 7 Jul 2026.
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58 of 76 references.
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- 2022M3ViT: Mixture-of-Experts Vision Transformer for Efficient Multi-task Learning with Model-Accelerator Co-design26 Oct
- 2022On the Adversarial Robustness of Mixture of Experts19 Oct
- 2021Scaling Vision with Sparse Mixture of Experts10 Jun
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