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Summary of Logarithmic Neyman Regret For Adaptive Estimation Of the Average Treatment Effect, by Ojash Neopane et al.


Logarithmic Neyman Regret for Adaptive Estimation of the Average Treatment Effect

by Ojash Neopane, Aaditya Ramdas, Aarti Singh

First submitted to arxiv on: 21 Nov 2024

Categories

  • Main: Machine Learning (stat.ML)
  • Secondary: Machine Learning (cs.LG)

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GrooveSquid.com Paper Summaries

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Summary difficulty Written by Summary
High Paper authors High Difficulty Summary
Read the original abstract here
Medium GrooveSquid.com (original content) Medium Difficulty Summary
The proposed Clipped Second Moment Tracking (ClipSMT) algorithm is designed to adaptively select treatment allocation probabilities to improve Estimation of Average Treatment Effect (ATE) in causal inference and Off-Policy Evaluation. Building upon an existing algorithm with strong asymptotic optimality guarantees, ClipSMT provides finite sample bounds on its Neyman regret. The algorithm achieves exponential improvements in Neyman regret by reducing the dependence on T from O(sqrt(T)) to O(log T) and polynomially scaling problem parameters. This is significant as existing non-asymptotic methods suffer from poor empirical performance and exponential scaling.
Low GrooveSquid.com (original content) Low Difficulty Summary
This paper looks at a way to improve estimation of Average Treatment Effect (ATE). Right now, most methods focus on how well they work when the sample size gets really big. However, this doesn’t help with real-world problems where we don’t have that many data points. The researchers came up with an algorithm called ClipSMT that can adaptively choose treatment allocation probabilities to better estimate ATE. This is important because it could lead to more accurate results and better decision-making.

Keywords

» Artificial intelligence  » Inference  » Tracking