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本页整理公开书目信息,不生成学术质量评分。AI 解读根据题名及所注明的摘要或原文片段生成,未完成全文核验,可能有误;具体假设、证明与结论请核对原文。摘要保留来源文本,未经模型改写。

DOI 首次登记不等于接收或发表日期。部分更正、评论等条目没有独立摘要;缺少可靠材料时保留待补状态。

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分类依据与纠错

AI 根据所提供的论文材料归类:摘要主体是通用动态决策审计,虽提及投资组合应用,但不足以归入资产定价或收益预测等细分方向。

反馈分类问题

正在核对关联版本…

代码、数据与补充材料

正在核对对应版本的资源…

关注这篇论文的作者
Irene Aldridge

人工智能投资策略的评估

研究问题
仅观察黑箱动态决策系统的输入与输出,能否通过成本与决策之间的协方差衡量累积遗憾,并形成可计算的审计指标?
方法与思路
作者在独立同分布成本和均值无偏马尔可夫策略下建立遗憾的协方差分解,并推导时变偏差校正及轨迹估计量。
材料陈述的贡献
摘要称将单期恒等式扩展到多期与折现情形,给出贝尔曼递推,并建立轨迹估计量的一致性和带HAC方差的渐近正态性。
阅读关注点
应核对遗憾所用的比较基准、均值无偏策略条件、协方差的可观测性,以及时变校正和策略改善结论的适用范围。
阅读边界
这是预印本,不能据此认定已同行评审或期刊接收;摘要中的精确分解有明确条件,不能推广为任意投资策略的有效评估。

原文摘要

We study the problem of auditing a black-box algorithmic decision-maker from observable inputs and outputs alone. Our main result is an exact decomposition: under precisely characterized conditions, the cumulative \emph{regret} of a dynamic policy equals the sum of per-period covariances between the cost vector and the policy's decision. This extends the single-period identity of Aldridge~(2026) to the full multi-period setting of stochastic dynamic programming. We prove the identity holds exactly under i.i.d. costs and mean-unbiased Markov policies, derive closed-form bias corrections for non-stationary and time-varying cases, and establish the discounted-horizon analog. A Bellman recursion for the covariance regret functional connects the result to standard reinforcement learning algorithms; for rolling-window policies, the estimation-error bias is $O(d/w)$. The decomposition has direct implications for algorithmic auditing in strategic environments: in platform mechanism design, it provides a welfare-based audit metric without access to the agent's private type; in repeated games, covariance reduction is a sufficient condition for policy improvement; in procurement and ad auctions, the bias correction quantifies welfare loss from strategic misreporting. The associated trajectory estimator is consistent, asymptotically normal with HAC variance, and computable in $O(T \cdot nd)$ time. This makes the proposed approach a tractable, model-free audit tool for platform mechanisms, algorithmic portfolio strategies, and any sequential decision system subject to external performance review.

笔记与分组