Author

Zhe-Cheng Sheng

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#natural language process... Preprint Sep 2026

Local Edits, Global Ripples: Replay-Informed Policy Adaptation for Workflow Synthesis

RIPPLE (Replay-Informed Persistent Policy Localization and Editing), which separates where an edit is made from whether it remains safe to persist after composition, and improves validation success by up to 23.1% and yields positive gains on two additional frozen language-model backbones, while maintaining edit efficie...

Man-Qing Mao, Hong Wang, Samson Koelle et al. · 0 citations

#machine learning May 2026

When Prompts Interact: Assessing Prompt Arithmetic for Deconfounding under Distribution Shift

This work proposes Hybrid Prompt Arithmetic (HyPA), which combines task prompts with linearized confounder prompts to counteract spurious correlations, and establishes HyPA as a parameter-efficient and promising approach for improving robustness under confounding shifts in the evaluated setting.

Zhe-Cheng Sheng, Yongsen Tan, Xiruo Ding et al. · arXiv.org · 0 citations