arXiv:2608.14252cs.AIcs.CL2026-08

提出语言模型真值追踪新框架,揭示无纠正控制下的推理可靠性边界。

Grounding Without Corrective Control: Truth-Tracking Profiles for Large Language Models

  • 构建路由-任务交互的约束谱系,分析模型输出是否具备真实感知能力
  • 发现仅依赖训练继承的纠错机制无法保障实时事实准确性
  • 适用于评估大模型在需要独立验证的任务中的可信度表现

近期研究表明部分大语言模型具备内容或指称表征。接地性可在不提供实时修正路径的情况下实现。本文探讨该缺口的后果:当偏差可能影响目标与任务特定安排所产生、接受或撤回的内容时,输出即具可回答性。只有当存在足够独立的实时路径来检测并修复新偏差时,才具备纠正控制。路由谱系记录哪些路径约束了安排及其相互关系。这些谱系支持真值追踪分析:表征成功模式化的支持。语言模型是压力案例;纯文本结构提供任务相关性的极限情况。文本训练模型继承了见证、连贯性和先前纠正的模式。若目标敏感的纠正机制在训练中留存,则可提供衍生可回答性(继承约束);实时可回答性则由当前路径对新偏差的响应关系提供。当任务要求对事实有独立信息获取时,流畅失败应随之出现。自洽性、检索、工具调用、代码执行、多模态输入和反馈应可选择性提供帮助。路由与任务间的交互测试上述区分。该分解的实证负担在于预测未见的路由-任务组合或在无需概念重构的前提下改进干预选择。表面性能提升与真值追踪提升可能脱节。

原文摘要 · Abstract (English)

Recent work suggests that some large language model representations have content or reference. Grounding can secure either without supplying live routes for correction. This paper asks what follows from that gap. An output is answerable when discrepancies can affect what a target- and task-specific arrangement produces, accepts, or withdraws. The arrangement has corrective control only when live, sufficiently independent routes can detect and repair fresh discrepancies. A route profile records which routes constrain the arrangement and how they are related. Those profiles support analysis of truth-tracking: patterned support for representational success. Language models are the pressure case; text-only arrangements provide a task-relative limiting case. Text-trained models inherit patterns of testimony, coherence, and prior correction. Where target-sensitive correction survives training, these can supply derivative answerability (inherited constraint); live answerability is the relation supplied by a current route for fresh discrepancies. Fluent failures should follow when a task requires independently informative access to the facts. Self-consistency, retrieval, tools, code execution, multimodal input, and feedback should help selectively. Route-by-task interactions test the distinctions. The decomposition's empirical burden is to predict held-out route--task combinations or improve intervention choice without conceptual refitting. Surface improvement and truth-tracking improvement can come apart.

大模型真值追踪推理可靠性

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