Ax Liubomyr Horbatko 4/22/2026

Sessa: Selective State Space Attention

Selective State Space Attention architecture combining transformer attention with state-space models for long-context sequences.

Ax Yuyuan Chen, Shiyi Wang, Peter Potaptchik, Jaeyeon Kim, Michael S. Albergo 4/22/2026

Discrete Tilt Matching

Discrete Tilt Matching method for fine-tuning masked diffusion LLMs using likelihood-free RL objectives.

Ax Benjamin K. Johnson, Thomas Goralski, Ayush Semwal, Hui Shen, H. Josh Jang 4/22/2026

Streaming Structured Inference with Flash-SemiCRF

Technical paper on Semi-Markov CRFs for efficient streaming structured sequence inference without materializing large tensors.

Ax Priyam Dey, Aditya Sahdev, Sunny Bhati, Konda Reddy Mopuri, R. Venkatesh Babu 4/22/2026

Rethinking Dataset Distillation: Hard Truths about Soft Labels

Analysis of dataset distillation showing soft labels mask underperformance versus random baselines; proposes hard-label evaluation for reliable coreset comparison.

Ax Pourya Shamsolmoali, Masoumeh Zareapoor, Eric Granger, William A. P. Smith, Yue Lu 4/22/2026

Task Switching Without Forgetting via Proximal Decoupling

Proximal decoupling approach for continual learning addressing task switching without catastrophic forgetting through explicit separation of learning and retention signals.

Ax Chih-Yu Chang, Qiyuan Chen, Tianhan Gao, David Fenning, Chinedum Okwudire, Neil Dasgupta, Wei Lu, Raed Al Kontar 4/22/2026

Collaborative Contextual Bayesian Optimization

Collaborative contextual Bayesian optimization extending BO to context-specific optimal design problems requiring mapping from context space to solutions.

Ax Nathaniel S. Woodward, Zhiqi Gao, Yurii Kvasiuk, Kendrick M. Smith, Frederic Sala, Moritz M\"unchmeyer 4/22/2026

Fine-Tuning Small Reasoning Models for Quantum Field Theory

Fine-tuning study of small 7B reasoning models on theoretical physics with analysis of domain-specific reasoning ability development in LLMs.

Ax Arsalan Sharifnassab, Mohamed Elsayed, Kris De Asis, A. Rupam Mahmood, Richard S. Sutton 4/22/2026

Intentional Updates for Streaming Reinforcement Learning

Proposes intentional updates for stable streaming reinforcement learning by solving for step sizes matching intended outcome changes.

Ax Qingyang Zhang, Xinke Kong, Haitao Wu, Qinghua Hu, Minghao Wu, Baosong Yang, Yu Cheng, Yun Luo, Ganqu Cui, Changqing Zhang 4/22/2026

TEMPO: Scaling Test-time Training for Large Reasoning Models

TEMPO scales test-time training for large reasoning models by addressing reward signal drift with external calibration mechanisms.

Ax Haotian Ye, Haowei Lin, Jingyi Tang, Yizhen Luo, Caiyin Yang, Chang Su, Rahul Thapa, Rui Yang, Ruihua Liu, Zeyu Li, Chong Gao, Dachao Ding, Guangrong He, Miaolei Zhang, Lina Sun, Wenyang Wang, Yuchen Zhong, Zhuohao Shen, Di He, Jianzhu Ma, Stefano Ermon, Tongyang Li, Xiaowen Chu, James Zou, Yuzhi Xu 4/22/2026

Evaluation-driven Scaling for Scientific Discovery

Formulates language model scaling for scientific discovery around evaluation-driven loops with verifiers and task-specific scoring functions.