Ax Weyl Lu, Chenjie Hao, Yubei Chen 4/3/2026

Deep Networks Favor Simple Data

Analysis of OOD anomaly where deep networks assign higher density to simple out-of-distribution data than in-distribution test data.

Ax Zhengyang Tang, Ke Ji, Xidong Wang, Zihan Ye, Xinyuan Wang, Yiduo Guo, Ziniu Li, Chenxin Li, Jingyuan Hu, Shunian Chen, Tongxu Luo, Jiaxi Bi, Zeyu Qin, Shaobo Wang, Xin Lai, Pengyuan Lyu, Junyi Li, Can Xu, Chengquan Zhang, Han Hu, Ming Yan, Benyou Wang 4/3/2026

Do Phone-Use Agents Respect Your Privacy?

MyPhoneBench evaluation framework measuring privacy compliance in phone-use agents during mobile task completion.

Ax Marawan Gamal Abdel Hameed, Derek Tam, Pascal Jr Tikeng Notsawo, Colin Raffel, Guillaume Rabusseau 4/3/2026

Model Merging via Data-Free Covariance Estimation

Principled layer-wise optimization approach for model merging via data-free covariance estimation without task-specific training.

Ax Nicholas Roberts, Sungjun Cho, Zhiqi Gao, Tzu-Heng Huang, Albert Wu, Gabriel Orlanski, Avi Trost, Kelly Buchanan, Aws Albarghouthi, Frederic Sala 4/3/2026

Test-Time Scaling Makes Overtraining Compute-Optimal

Train-to-Test scaling laws optimizing model size, training tokens, and inference samples jointly for compute-optimal LLM deployment.

Ax Barak Gahtan, Alex M. Bronstein 4/3/2026

Coupled Query-Key Dynamics for Attention

arXiv paper on coupled query-key dynamics for scaled dot-product attention. Improves language modeling perplexity by 6-7% on WikiText-103.

Ax Kang-Sin Choi 4/3/2026

Learn by Surprise, Commit by Proof

LSCP: Self-gated post-training framework for autonomous knowledge acquisition using self-generated Q&A chains and adaptive learning rates based on model conviction.