Ax Bangrui Xu, Qihang Yao, Zirui Tang, Xuanhe Zhou, Yeye He, Shihan Yu, Qianqian Xu, Bin Wang, Guoliang Li, Conghui He, Fan Wu 3/2/2026

MoDora: Tree-Based Semi-Structured Document Analysis System

Document analysis system for semi-structured documents with tables, charts, and hierarchical content for question-answering tasks.

Ax Shu Liu, Shubham Agarwal, Monishwaran Maheswaran, Mert Cemri, Zhifei Li, Qiuyang Mang, Ashwin Naren, Ethan Boneh, Audrey Cheng, Melissa Z. Pan, Alexander Du, Kurt Keutzer, Alexandros G. Dimakis, Koushik Sen, Matei Zaharia, Ion Stoica 3/2/2026

EvoX: Meta-Evolution for Automated Discovery

EvoX framework combines LLM-driven optimization with evolutionary search for automated discovery of programs, prompts, and algorithms.

Ax Yicen Li, Jose Antonio Lara Benitez, Ruiyang Hong, Anastasis Kratsios, Paul David McNicholas, Maarten Valentijn de Hoop 3/2/2026

Neural Operators Can Discover Functional Clusters

Theoretical work proving neural operators can discover functional clusters in infinite-dimensional spaces.

Ax Oscar Hill, Mateo Espinosa Zarlenga, Mateja Jamnik 3/2/2026

Hierarchical Concept-based Interpretable Models

Hierarchical Concept Embedding Models improve interpretability of deep neural networks by mapping inputs to human-interpretable concept representations with inter-concept relationships.

Ax Daniel Yang, Samuel Stante, Florian Redhardt, Lena Libon, Parnian Kassraie, Ido Hakimi, Barna P\'asztor, Andreas Krause 3/2/2026

RewardUQ: A Unified Framework for Uncertainty-Aware Reward Models

Proposes RewardUQ framework for uncertainty-aware reward models in LLM alignment that reduces annotation costs and prevents overoptimization.