LLMs are not stochastic parrots: Evidence for meaning-mediated abstraction from conlang-like tasks

📄 arXiv: 2609.34187v1 📥 PDF

作者: Julia Witte Zimmerman, Calla G. Beauregard, Tabia Tanzin Prama, Parisa Suchdev, Kathryn Cramer, Elisabeth Kollrack

分类: cs.CL, cs.AI

发布日期: 2026-09-28


💡 一句话要点

通过构造语言任务验证LLM的意义中介抽象能力

🎯 匹配领域: 支柱九:具身大模型 (Embodied Foundation Models)

关键词: 大型语言模型 抽象推理 构造语言任务 统计学习 自然语言处理

📋 核心要点

  1. 现有的随机鹦鹉论断认为LLMs仅依赖统计模式,无法进行真正的抽象和推理。
  2. 论文通过构造语言任务,验证LLMs在没有示例的情况下是否能遵循规则并进行意义中介的抽象。
  3. 实验结果显示,模型在多项任务中表现出规则遵循行为,反驳了强随机鹦鹉假设,证明了意义中介抽象的存在。

📝 摘要(中文)

强版本的随机鹦鹉论断认为,尽管大型语言模型(LLMs)可能超越机械重复,但它们无法超越统计模式匹配,无法进行抽象或推理。本文通过构造语言任务测试该假设,给LLMs提供虚构语言的自然语言描述,未提供示例输出。结果表明,模型在意义预测方向上系统性移动,表现出规则遵循行为,反驳了强随机鹦鹉假设。研究表明,在适当的架构和上下文约束下,统计学习能够产生意义中介的抽象,尽管生成仍受限于表面可行性。

🔬 方法详解

问题定义:本文旨在验证大型语言模型是否仅依赖统计模式,无法进行抽象推理。现有方法未能充分探讨模型在复杂任务中的表现,尤其是在缺乏示例的情况下。

核心思路:通过构造语言任务,给模型提供虚构语言的描述,考察其是否能在没有示例的情况下遵循规则并进行抽象推理。这样的设计旨在挑战现有的随机鹦鹉论断,探索模型的潜在能力。

技术框架:研究设计了三类互补的任务,模型需根据提示中的约束进行推理,表现出对语义关系的调整和规则遵循。主要模块包括提示解析、约束应用和输出生成。

关键创新:最重要的创新在于通过无示例的构造语言任务,展示了LLMs在意义中介抽象方面的能力,反驳了强随机鹦鹉假设。与现有方法相比,强调了模型在复杂语义任务中的表现。

关键设计:在实验中,模型的提示设计和约束设置至关重要,确保模型能够在没有表面统计模式的情况下进行推理。具体参数和损失函数的选择也影响了模型的表现。

🖼️ 关键图片

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📊 实验亮点

实验结果表明,模型在三类任务中表现出规则遵循行为,能够在没有示例的情况下进行推理和生成,成功率在不同模型间有所差异,部分模型甚至能准确匹配复杂翻译答案,反映出意义中介抽象的能力。

🎯 应用场景

该研究的潜在应用领域包括自然语言处理、机器翻译和人机交互等。通过验证LLMs的抽象能力,未来可以推动更智能的对话系统和翻译工具的发展,提升人机交互的自然性和准确性。

📄 摘要(原文)

The strong version of the stochastic parrot argument claims that, although large language models (LLMs) may exceed rote regurgitation, they cannot move beyond statistical pattern matching into abstraction or reasoning, remaining ontologically near the lower bound of pattern reuse despite producing alluringly fluent text. We test this hypothesis using conlang-like tasks. Several LLMs are given only natural-language descriptions of fictional languages that subvert prominent superficial patterns in training data by combining statistically uncommon and unattested features. Crucially, no example outputs are given. We argue that if the models exhibit rule-following behaviour, they cannot be relying solely on superficial statistical patterns; such patterns often work against the correct output. Instead, successful performance requires representations of the constraints specified in the prompt. Across three complementary task families, models systematically move in the meaning-predicted direction: they distinguish prompt exposure from instructed use, alter semantic relationships in response to novel constraints, and sometimes produce exact matches to complex translation answer keys. Although performance varies across the spectrum of models used, these results provide evidence for meaning-mediated abstraction in LLMs and refute the strong stochastic parrot hypothesis. Our work shows that, under appropriate architectural and contextual constraints, statistical learning can produce meaning-mediated abstractions, although generation remains strongly constrained by superficial plausibility. We discuss implications for model development and for understanding how increasingly abstract representations may emerge from plausible-text-generation objectives.