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arXiv 2601.15322cs.AIcs.CL

可重播的金融代理:用于工具使用LLM代理的确定性-忠实性保证框架

Replayable Financial Agents: A Determinism-Faithfulness Assurance Harness for Tool-Using LLM Agents

Raffi Khatchadourian

AI总结:

本文提出DFAH框架,用于评估金融代理的确定性和忠实性,发现决策确定性与准确性无显著相关性,强调需独立测量两者的多维评估方法。

摘要:

LLM代理在监管审计重播中面临困难:当被要求用相同的输入重现一个被标记的交易决策时,许多部署无法返回一致的结果。我们介绍了确定性-忠实性保证框架(DFAH),这是一个用于测量轨迹确定性、决策确定性和证据条件下的忠实性的框架,用于在金融服务中部署的使用工具的代理。在4700多个代理运行(7个模型,4个提供商,3个金融基准,每个基准50个案例,T=0.0)中,我们发现决策确定性和任务准确性之间没有可检测的相关性(r = -0.11,95%置信区间[-0.49, 0.31],p = 0.63,n = 21配置):模型可以是确定性的而不准确,也可以是准确的而不确定。由于在我们的样本中这两个指标并不预测彼此,因此必须独立测量,这正是DFAH所提供的。小型模型(7-20B)通过在模式匹配上严格一致来实现接近完美的确定性,但以准确性(20-42%)为代价,而前沿模型则显示出中等程度的确定性(50-96%)和可变的准确性。没有模型能同时实现完美的确定性和高准确性,支持DFAH的多维测量方法。我们提供了三个金融基准(合规审查、投资组合限制和DataOps异常;每个基准50个案例)以及一个开源的压力测试框架。在这些基准和DFAH评估设置中,一级模型(以模式优先的架构)实现了与审计重播要求一致的确定性水平。

英文摘要:

Tool-using agents can repeat a final decision while changing their recorded execution. We introduce the Determinism-Faithfulness Assurance Harness (DFAH), a framework that distinguishes decision repeatability, trajectory agreement, and evidence-conditioned faithfulness. Task correctness requires separately qualified labels and evaluation; evidence-conditioned faithfulness was not evaluated in the historical v2 agentic experiments. The original v2 study reported 4,705 agentic runs in three synthetic financial tasks and a decision-determinism/task-label-match correlation of r = -0.11 across 21 model-benchmark configuration summaries. This statistic is reproducible from the historical configuration table, but includes a subsequently excluded portfolio fixture. It is retained as a historical description, not evidence of statistical independence, predictive uselessness, or an architectural determinism-accuracy tradeoff. Recorded decision concentration and tool-path variation do not identify hidden model strategy. This correction qualifies the historical evidence and removes the deployment recommendations derived from those unsupported interpretations. A separate corrected study, DFAH-Bench (arXiv:2607.20491), provides qualified evidence of decision/path disagreement. The contribution retained here is a measurement framework: repeatability, observable execution, evidence alignment, and correctness require distinct evidence, with explicit capture and study boundaries.

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。

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