Ax Zhiyuan Zhai, Xiaojun Yuan, Wei Ni, Xin Wang, Rui Zhang, Geoffrey Ye Li 2/24/2026

Event-Triggered Gossip for Distributed Learning

Event-triggered gossip framework for distributed learning that reduces inter-node communication overhead.

Ax Shirui Chen, Cole Harrison, Ying-Chun Lee, Angela Jin Yang, Zhongzheng Ren, Lillian J. Ratliff, Jiafei Duan, Dieter Fox, Ranjay Krishna 2/24/2026

TOPReward: Token Probabilities as Hidden Zero-Shot Rewards for Robotics

TOPReward uses token probabilities from Vision-Language-Action models as zero-shot reward signals for robotics reinforcement learning without task-specific training.

Ax Kevin Qiu, Yu Zhang, Marek Cygan, Josie Hughes 2/24/2026

Vid2Sid: Videos Can Help Close the Sim2Real Gap

Vid2Sid uses video data to calibrate robot simulator physics parameters, addressing sim-to-real gap without manual tuning or black-box optimization.

Ax Ilyes Batatia, William J. Baldwin, Domantas Kuryla, Joseph Hart, Elliott Kasoar, Alin M. Elena, Harry Moore, Miko{\l}aj J. Gawkowski, Benjamin X. Shi, Venkat Kapil, Panagiotis Kourtis, Ioan-Bogdan Magd\u{a}u, G\'abor Cs\'anyi 2/24/2026

MACE-POLAR-1: A Polarisable Electrostatic Foundation Model for Molecular Chemistry

Foundation model for molecular chemistry extending MACE with explicit long-range electrostatic interactions and charge transfer modeling.

Ax Yirou Ge, Yixi Li, Alec Chiu, Shivani Shekhar, Zijie Pan, Avinash Thangali, Yun-Shiuan Chuang, Chaitanya Kulkarni, Uma Kona, Linsey Pang, Prakhar Mehrotra 2/24/2026

Ada-RS: Adaptive Rejection Sampling for Selective Thinking

Adaptive Rejection Sampling framework for selective reasoning in LLMs, reducing token waste on simple requests while maintaining chain-of-thought benefits.

Ax Arundhati Banerjee, Jeff Schneider 2/24/2026

Cost-Aware Diffusion Active Search

Cost-aware active search algorithm for autonomous agents to balance exploration and exploitation with unknown target recovery.

Ax Jeffrey Li, Josh Gardner, Doug Kang, Fangping Shi, Karanjeet Singh, Chun-Liang Li, Herumb Shandilya, David Hall, Oncel Tuzel, Percy Liang, Ludwig Schmidt, Hadi Pour Ansari, Fartash Faghri 2/24/2026

Beyond a Single Extractor: Re-thinking HTML-to-Text Extraction for LLM Pretraining

Investigates HTML-to-text extraction methods for LLM pretraining datasets, showing single extractors lead to suboptimal web data coverage.

Ax Xinyu Tian, Xiaotong Shen 2/24/2026

Manifold-Aligned Generative Transport

Framework for high-dimensional generative modeling using manifold learning to balance support fidelity and sampling efficiency.

Ax Jiayu Wang, Yifei Ming, Zixuan Ke, Shafiq Joty, Aws Albarghouthi, Frederic Sala 2/24/2026

SkillOrchestra: Learning to Route Agents via Skill Transfer

SkillOrchestra system for routing across multiple AI agents via learned skill transfer, reducing routing collapse in multi-turn conversations.