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Tiancheng Wu

3 accepted papers

2025

Geometric Red-Teaming for Robotic Manipulation

CoRL 2025oral

Standard evaluation protocols in robotic manipulation typically assess policy performance over curated, in-distribution test sets, offering limited insight into how systems fail under plausible variation. We introduce a red-teaming framework that probes robustness through object-centric geometr…

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2024

Provably Convergent Federated Trilevel Learning

AAAI 2024technical

Trilevel learning, also called trilevel optimization (TLO), has been recognized as a powerful modelling tool for hierarchical decision process and widely applied in many machine learning applications, such as robust neural architecture search, hyperparameter optimization, and domain adaptation. Tack…

Cited by 6Source ↗PDF ↗Scholar ↗
2023

Asynchronous Distributed Bilevel Optimization

ICLR 2023poster

Bilevel optimization plays an essential role in many machine learning tasks, ranging from hyperparameter optimization to meta-learning. Existing studies on bilevel optimization, however, focus on either centralized or synchronous distributed setting. The centralized bilevel optimization approaches r…