arXiv Computation and Language

ROSE: Risk-Aware Orthogonal Subspace Navigation for Lifelong Knowledge Editing in Multimodal Large Language Models

ROSE is a Risk‑Aware Orthogonal Subspace Navigation framework designed for lifelong knowledge editing in multimodal large language models. It limits parameter updates to the orthogonal complement of previously edited subspaces and uses a dynamic risk mask to protect critical factual parameters, thereby reducing catastrophic forgetting. During inference, ROSE applies prototype‑anchored semantic gating and perturbation‑driven subspace fusion to activate edited knowledge precisely for relevant queries while minimizing interference on unrelated inputs.

arXiv AI
Jun 19

LOKI: Memory-Free Null-Space Constrained Lifelong Knowledge Editing

arXiv:2606. 19679v1 Announce Type: cross Abstract: Lifelong knowledge editing aims to efficiently and sequentially update language models over time, as new knowledge becomes available or when the model makes mistakes, while preserving acceptable performance on past knowledge.

By Masih Eskandar, Miquel Sirera Perell\'o, Stratis Ioannidis, Jennifer Dy
arXiv AI
Oct 5

Improving Atomic-Fact Recall via Focused Views in Unstructured Knowledge Editing

The paper introduces FOVEATED, a plug‑and‑play framework that improves atomic‑fact recall in unstructured knowledge editing (UKE) for large language models. By randomly shifting Rotary Position Embedding (RoPE) positions during editing, FOVEATED creates focused views of each sentence, counteracting the context‑reliance problem where edited LLMs reproduce passages but fail to recall individual facts. Experiments show consistent gains across five editors, two LLM backbones, and three benchmarks.

By Ding Wu, Ye Zhang, Haoyu Wang, Tianci Liu
arXiv Computation and Language
Oct 8

EngramEdit: Decoupled Knowledge Updates in LLMs through Conditional Memory

EngramEdit introduces a method for decoupled knowledge updates in large language models using conditional memory architectures. By computing target memory representations that align with updated facts across multiple expressions, it jointly adjusts shared n‑gram embeddings while penalizing frequent ones to preserve unrelated knowledge. Experiments demonstrate near‑perfect editing success, improved multi‑hop reasoning, and strong performance under chain‑of‑thought prompting, all while maintaining general capabilities.

By Hongru Cai, Ran Wei, Wenjie Wang, Chengfa Wu, Ning Song, Yongqi Li, Wenjie Li
arXiv AI
Oct 27

DynEdit: Dynamic Entropy-Guided Sequential Editing for Large Language Models

DynEdit is a dynamic framework for editing long-sequence knowledge in large language models. It uses token-level entropy to guide non-uniform sliding windows, focusing on high-entropy, information-dense regions that are harder to edit. Experiments on three benchmarks and two backbone models show DynEdit outperforms baselines, achieving up to +14.0 BLEU points on challenging paraphrase queries and near-saturated semantic scores across diverse knowledge domains.

By Jinhu Fu, Yan Bai, Yihang Lou, Li Sun, Jiahong Wu, Xiangxiang Chu, Sen Su
arXiv AI
4d ago

Editing Large Language Models with Geometry-Aware Regularization

The paper introduces GEdit, a geometry-aware framework for editing large language models that leverages a Low-Rank Plus Diagonal factor model to capture the low-rank structure of Transformer FFN hidden representations. GEdit applies low‑rank regularization to protect core knowledge and adaptive regularization to adjust constraints based on the difficulty of each edit, allowing harder edits to succeed while preserving easier ones. Experiments on GPT2‑XL, GPT‑J, and LLaMA‑3‑8B with up to 10,000 continuous updates demonstrate that GEdit outperforms state‑of‑the‑art baselines in both editing success and knowledge preservation.

By Bingqing Liu, Wei Liu, Jun Wang, Xiaobo Sun, Yuhua Li, Ruixuan Li
arXiv AI
Sep 25

ALOE: Semantically Addressed Low-Rank Operators for Knowledge Editing

The paper introduces ALOE, a method for knowledge editing that learns semantic addresses from paraphrases and hard negatives, aligns them with autoregressive hidden states, and embeds a gated low‑rank operator within a single MLP layer. This design allows the edited model to run in one forward pass without external retrievers or routers. Experiments on CounterFact, ZSRE, and KnowEdit show high efficacy (0.955–0.999) and locality (0.981–1.000) across 7–8B model families, with analyses indicating effective separation of edits and suppression of out‑of‑scope activation.

By Zeyan Li, Hu Xu, Jianfeng Xu