Ax Nathan Breslow, Aayush Mishra, Mahler Revsine, Michael C. Schatz, Anqi Liu, Daniel Khashabi 3/19/2026

Genomic Next-Token Predictors are In-Context Learners

Demonstrates in-context learning emerges organically in genomic sequence models trained with next-token prediction on DNA sequences.

Ax Leo Elmecker-Plakolm, Pierre Fasterling, Philip Sosnin, Calvin Tsay, Matthew Wicker 3/19/2026

Provably Safe Model Updates

Develops methods for provably safe ML model updates preventing catastrophic forgetting and alignment drift in dynamic environments.

Ax Vedant Shah, Johan Obando-Ceron, Vineet Jain, Brian Bartoldson, Bhavya Kailkhura, Sarthak Mittal, Glen Berseth, Pablo Samuel Castro, Yoshua Bengio, Nikolay Malkin, Moksh Jain, Siddarth Venkatraman, Aaron Courville 3/19/2026

A Comedy of Estimators: On KL Regularization in RL Training of LLMs

Analyzes KL regularization estimators in RL training of LLMs, comparing bias-variance tradeoffs of different approximation methods.

Ax Teng Xiao, Yige Yuan, Hamish Ivison, Huaisheng Zhu, Faeze Brahman, Nathan Lambert, Pradeep Dasigi, Noah A. Smith, Hannaneh Hajishirzi 3/19/2026

Meta-Reinforcement Learning with Self-Reflection for Agentic Search

MR-Search proposes meta-reinforcement learning with self-reflection for agentic search, enabling agents to adapt strategies across episodes and improve in-context exploration.

Ax Jingpu Cheng, Qianxiao Li, Ting Lin, Zuowei Shen 3/19/2026

Deep learning and the rate of approximation by flows

Theoretical investigation of deep residual networks' approximation capacity in continuous dynamical systems, quantifying minimal time-horizons for diffeomorphism approximation.

Ax Jackson Trager, Alireza S. Ziabari, Elnaz Rahmati, Aida Mostafazadeh Davani, Preni Golazizian, Farzan Karimi-Malekabadi, Ali Omrani, Zhihe Li, Brendan Kennedy, Georgios Chochlakis, Nils Karl Reimer, Melissa Reyes, Kelsey Cheng, Mellow Wei, Christina Merrifield, Arta Khosravi, Evans Alvarez, Morteza Dehghani 3/19/2026

The Moral Foundations Reddit Corpus

Reddit corpus annotated with moral sentiment and framing for NLP tasks related to moral language detection and analysis.

Ax Selina Carter, Arun K Kuchibhotla 3/19/2026

Statistical Inference for Online Algorithms

Methods for constructing confidence intervals and hypothesis tests for functionals derived from online/sequential algorithms with computational constraints.

Ax Mathew J. Koretsky, Maya Willey, Owen Bianchi, Chelsea X. Alvarado, Tanay Nayak, Nicole Kuznetsov, Sungwon Kim, Mike A. Nalls, Daniel Khashabi, Faraz Faghri 3/19/2026

BiomedSQL: Text-to-SQL for Scientific Reasoning on Biomedical Knowledge Bases

BiomedSQL benchmark for evaluating text-to-SQL systems on biomedical knowledge bases requiring implicit domain reasoning and scientific understanding.