arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2306.14308cs.CLcs.AI

让我们做一个思想实验:使用反事实来改善道德推理

Let's Do a Thought Experiment: Using Counterfactuals to Improve Moral Reasoning

Google(谷歌)

Xiao Ma, Swaroop Mishra, Ahmad Beirami, Alex Beutel, Jilin Chen

AI总结:

提出基于反事实的Thought Experiments提示框架,通过引出反事实问答提升语言模型在Moral Scenarios任务的准确率,并发现零样本CoT无效而少样本监督可显著提升性能。

摘要:

尽管语言模型在许多其他任务中表现出色,但在道德推理方面仍然存在困难。特别是,MMLU(多任务语言理解)中的 Moral Scenarios 任务是包括 GPT-3 在内的许多语言模型表现最差的任务之一。在这项工作中,我们提出了一个新的提示框架 Thought Experiments,使用反事实来教导语言模型进行更好的道德推理。实验结果表明,我们的框架从模型中引出反事实问题和答案,这反过来有助于将 Moral Scenarios 任务的准确率与其他零样本基线相比提高 9-16%。有趣的是,与数学推理任务不同,零样本思维链(CoT)推理无法开箱即用,甚至与直接零样本相比将准确率降低了约 4%。我们进一步观察到,以 5 个少样本示例形式的最小人工监督,该任务的准确率可以提高到多达 80%。

英文摘要:

Language models still struggle on moral reasoning, despite their impressive performance in many other tasks. In particular, the Moral Scenarios task in MMLU (Multi-task Language Understanding) is among the worst performing tasks for many language models, including GPT-3. In this work, we propose a new prompting framework, Thought Experiments, to teach language models to do better moral reasoning using counterfactuals. Experiment results show that our framework elicits counterfactual questions and answers from the model, which in turn helps improve the accuracy on Moral Scenarios task by 9-16% compared to other zero-shot baselines. Interestingly, unlike math reasoning tasks, zero-shot Chain-of-Thought (CoT) reasoning doesn't work out of the box, and even reduces accuracy by around 4% compared to direct zero-shot. We further observed that with minimal human supervision in the form of 5 few-shot examples, the accuracy of the task can be improved to as much as 80%.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑