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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。

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关注作者按书目中的完整姓名匹配,同名和姓名变体需人工辨别。相关论文先按共享细分方向和具体方法排列,再参考通用方法与发表日期。

分类依据与纠错

AI 根据所提供的论文材料归类:摘要明确研究文本结果随机试验中的处理效应估计与检验功效,并结合抽样和机器学习校正,直接属于因果推断方向。

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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
Reagan Mozer
Luke Miratrix

用机器学习辅助人工编码,提高文本随机试验的推断效率

研究问题
当随机试验以文本为结果且人工编码预算固定时,如何利用未编码文档提高处理效应检验功效,并避免预测模型偏差传入效应估计?
方法与思路
作者先抽样人工编码,再训练文本预测模型为全部文档评分,最后用人工评分与预测评分的残差校正处理效应估计。
材料陈述的贡献
摘要称,残差校正可阻止建模偏差传入最终效应估计;模拟与教育现场试验展示了减少人工编码同时维持名义检验功效的可能性。
阅读关注点
应核对人工编码样本的抽样机制与权重、残差校正公式、模型训练和推断的关系,以及方差估计与功效比较所需条件。
阅读边界
这是 arXiv 预印本,同行评审或期刊接收未获核验;摘要未说明抽样和推断的完整条件,也不能保证任意预测模型均带来功效提升。

原文摘要

For randomized trials that use text as an outcome, traditional approaches for assessing treatment impact require that each document first be manually coded for constructs of interest by trained human raters. This process, the current standard, is both time-consuming and limiting: even the largest human coding efforts are typically constrained to measure only a small set of dimensions across a subsample of available texts. In this work, we present an inferential framework that can be used to increase the power of an impact assessment, given a fixed human-coding budget, by taking advantage of any "untapped" observations -- those documents not manually scored due to time or resource constraints -- as a supplementary resource. Our approach, a methodological combination of causal inference, survey sampling methods, and machine learning, has four steps: (1) select and code a sample of documents; (2) build a machine learning model to predict the human-coded outcomes from a set of automatically extracted text features; (3) generate machine-predicted scores for all documents and use these scores to estimate treatment impacts; and (4) adjust the final impact estimates using the residual differences between human-coded and machine-predicted outcomes. This final step ensures any biases in the modeling procedure do not propagate to biases in final estimated effects. Through an extensive simulation study and an application to a recent field trial in education, we show that our proposed approach can be used to reduce the scope of a human-coding effort while maintaining nominal power to detect a significant treatment impact.

笔记与分组