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Vaneet Aggarwal

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#machine learning Preprint Sep 2026

Reliable Replay through Spatial Coherence in Online Continual Learning

This work introduces SPatial coHErent risk control for REplay (SPHERE), a general replay-allocation method applicable across a broad range of learning settings and demonstrates that SPHERE improves accuracy and reduces forgetting across noisy-label vision tasks, continual language-model instruction tuning, and code-gen...

Hai-Xiang Sun, Jie-Fu Zhang, Yi He et al. · 0 citations
#machine learning Preprint Sep 2026

CARVE: Breaking Data Barriers in Chip Placement by Harnessing Reusable Expertise

This work introduces Continual Adaptation through the Reuse of Validated Expertise (CARVE), a framework that represents accumulated expertise as a frozen base policy, immutable specialists, and task-specific credentials obtained through local validation that establishes expected-performance guarantees for repeated reus...

Jie-Fu Zhang, Hai-Xiang Sun, Yang Xu et al. · 0 citations
Jul 2026

Hierarchical Multilevel Monte Carlo for Order-Optimal Neural Actor-Critic in Average-Reward CMDPs

A hierarchical Multilevel Monte Carlo neural critic that performs debiasing simultaneously across trajectory sampling and critic optimization and establishes the first order-optimal convergence guarantees for infinite-horizon average-reward CMDPs with general policy parameterization and neural critics, while eliminatin...

Ankur Naskar, Vaneet Aggarwal · 0 citations
Jul 2026

Hypergradient-based Bilevel Reinforcement Learning with Improved Sample Complexity

This work proposes a hypergradient-based bilevel RL algorithm using the optimality of the Boltzmann policy for the entropy regularized discounted RL objective function and obtains an iteration complexity of $O(\epsilon^{-1})$ and state-of-the-art sample complexity of $\tilde{O}(\epsilon^{-2})$ under mild regularity con...

Naman Saxena, Mudit Gaur, Vaneet Aggarwal · 0 citations
#machine learning Preprint Aug 2026

Selection-Aware Stress Testing for Interactive Agents

This work introduces Selection-Aware Semantic Stress Testing (\SASST{}), which learns a task reweighting from pre-execution features on discovery tasks and evaluates the same paired comparison on separate confirmation tasks.

Yang Xu, Chenang Li, Jiefu Zhang et al. · 0 citations

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