Ax Qian Xie, Linda Cai, Alexander Terenin, Peter I. Frazier, Ziv Scully 6/1/2026

Cost-aware Stopping for Bayesian Optimization

Cost-aware stopping rules for Bayesian optimization balancing solution quality against cumulative evaluation cost.

Ax Linghao Kong, Inimai Subramanian, Yonadav Shavit, Micah Adler, Dan Alistarh, Nir Shavit 6/1/2026

Expand Neurons, Not Parameters

Research on increasing network neurons while keeping parameters constant to reduce feature interference and polysemanticity in neural networks.

Ax Sanghyeok Choi, Sarthak Mittal, V\'ictor Elvira, Jinkyoo Park, Esmeralda S. Whitammer 6/1/2026

Reinforced sequential Monte Carlo for amortised sampling

Combines sequential Monte Carlo sampling with maximum-entropy RL to learn proposal kernels for sampling from unnormalized distributions.

Ax Jiayu Bai, Danchen Yu, Zhenyu Liao, TianQi Hou, Feng Zhou, Robert C. Qiu, Zenan Ling 6/1/2026

Diving into Kronecker Adapters: Component Design Matters

Studies component structure design in Kronecker adapters for fine-tuning large models, exploring dimensions and quantity optimization.

Ax Fabian Fumagalli, Landon Butler, Justin Singh Kang, Kannan Ramchandran, R. Teal Witter 6/1/2026

An Odd Estimator for Shapley Values

Analyzes theoretical mechanisms behind paired sampling heuristic for Shapley value approximation in feature importance and data valuation.

Ax Quang Truong, Yu Song, Donald Loveland, Mingxuan Ju, Tong Zhao, Neil Shah, Jiliang Tang 6/1/2026

Plain Transformers are Surprisingly Powerful Link Predictors

Demonstrates plain Transformers can effectively solve graph link prediction without explicit structural heuristics, offering scalable alternative to GNNs.

Ax Mathieu Even, Cl\'ement Berenfeld, Linus Bleistein, Tudor Cebere, Julie Josse, Aur\'elien Bellet 6/1/2026

Causal Evaluation of Membership Inference Attacks

Analyzes statistical validity of membership inference attacks for quantifying memorization and privacy risks, proposing causal evaluation methods.

Ax Francesco De Santis, Gabriele Ciravegna, Giovanni De Felice, Arianna Casanova, Francesco Giannini, Michelangelo Diligenti, Johannes Schneider, Danilo Giordano, Mateo Espinosa Zarlenga, Pietro Barbiero 6/1/2026

Mixture of Concept Bottleneck Experts

Proposes Mixture of Concept Bottleneck Experts framework generalizing CBMs along multiple dimensions to improve interpretability and predictive accuracy.