Deep Jump Learning for Off-Policy Evaluation in Continuous Treatment Settings

Bibliographic Details
Title: Deep Jump Learning for Off-Policy Evaluation in Continuous Treatment Settings
Authors: Cai, Hengrui, Shi, Chengchun, Song, Rui, Lu, Wenbin
Publication Year: 2020
Collection: Computer Science
Statistics
Subject Terms: Statistics - Machine Learning, Computer Science - Machine Learning
More Details: We consider off-policy evaluation (OPE) in continuous treatment settings, such as personalized dose-finding. In OPE, one aims to estimate the mean outcome under a new treatment decision rule using historical data generated by a different decision rule. Most existing works on OPE focus on discrete treatment settings. To handle continuous treatments, we develop a novel estimation method for OPE using deep jump learning. The key ingredient of our method lies in adaptively discretizing the treatment space using deep discretization, by leveraging deep learning and multi-scale change point detection. This allows us to apply existing OPE methods in discrete treatments to handle continuous treatments. Our method is further justified by theoretical results, simulations, and a real application to Warfarin Dosing.
Document Type: Working Paper
Access URL: http://arxiv.org/abs/2010.15963
Accession Number: edsarx.2010.15963
Database: arXiv
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