Papers › Zero-Label Prompt Selection

Zero-Label Prompt Selection

9 Nov 2022arXiv:2211.04668archive 2025-07-28

Chonghua Liao, Yanan Zheng, Zhilin Yang

Natural language prompts have been shown to facilitate cross-task generalization for large language models. However, with no or limited labeled examples, the cross-task performance is highly sensitive to the choice of prompts, while selecting a high-performing prompt is challenging given the scarcity of labels. To address the issue, we propose a Zero-Label Prompt Selection (ZPS) method that selects prompts without any labeled data or gradient update. Specifically, given the candidate human-written prompts for a task, ZPS labels a set of unlabeled data with a prompt ensemble and uses the pseudo-labels for prompt selection. Experiments show that ZPS improves over prior methods by a sizeable margin in zero-label performance. We also extend ZPS to a few-shot setting and show its advantages over strong baselines such as prompt tuning and model tuning.

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ensemble_vote chonghualiao/zps/src/run_zps.py official repository ran · honoured contract Apache-2.0 (permissive) · 5559cf9dfcb5e715 · report
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