Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction

The estimation of the Individual Treatment Effect (ITE) on survival time is an important research topic in clinics-based causal inference. Various representation learning methods have been proposed to deal with its three key problems, i.e., reducing selection bias, handling censored survival data, a...

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Main Authors: Yijie Zhao, Hao Zhou, Jin Gu, Hao Ye
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Entropy
Subjects:
Online Access:https://www.mdpi.com/1099-4300/24/7/975
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author Yijie Zhao
Hao Zhou
Jin Gu
Hao Ye
author_facet Yijie Zhao
Hao Zhou
Jin Gu
Hao Ye
author_sort Yijie Zhao
collection DOAJ
description The estimation of the Individual Treatment Effect (ITE) on survival time is an important research topic in clinics-based causal inference. Various representation learning methods have been proposed to deal with its three key problems, i.e., reducing selection bias, handling censored survival data, and avoiding balancing non-confounders. However, none of them consider all three problems in a single method. In this study, by combining the Counterfactual Survival Analysis (CSA) model and Dragonnet from the literature, we first propose a CSA–Dragonnet to deal with the three problems simultaneously. Moreover, we found that conclusions from traditional Randomized Controlled Trials (RCTs) or Retrospective Cohort Studies (RCSs) can offer valuable bound information to the counterfactual learning of ITE, which has never been used by existing ITE estimation methods. Hence, we further propose a CSA–Dragonnet with Embedded Prior Knowledge (CDNEPK) by formulating a unified expression of the prior knowledge given by RCTs or RCSs, inserting counterfactual prediction nets into CSA–Dragonnet and defining loss items based on the bounds for the ITE extracted from prior knowledge. Semi-synthetic data experiments showed that CDNEPK has superior performance. Real-world experiments indicated that CDNEPK can offer meaningful treatment advice.
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spelling doaj.art-906cdbb2ec96439884ba7212597179a82023-12-01T22:06:58ZengMDPI AGEntropy1099-43002022-07-0124797510.3390/e24070975Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual PredictionYijie Zhao0Hao Zhou1Jin Gu2Hao Ye3Department of Automation, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, ChinaDepartment of Automation, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, ChinaMOE Key Laboratory for Bioinformatics, BNRIST Bioinformatics Division, Department of Automation, Tsinghua University, Beijing 100084, ChinaDepartment of Automation, Beijing National Research Center for Information Science and Technology (BNRist), Tsinghua University, Beijing 100084, ChinaThe estimation of the Individual Treatment Effect (ITE) on survival time is an important research topic in clinics-based causal inference. Various representation learning methods have been proposed to deal with its three key problems, i.e., reducing selection bias, handling censored survival data, and avoiding balancing non-confounders. However, none of them consider all three problems in a single method. In this study, by combining the Counterfactual Survival Analysis (CSA) model and Dragonnet from the literature, we first propose a CSA–Dragonnet to deal with the three problems simultaneously. Moreover, we found that conclusions from traditional Randomized Controlled Trials (RCTs) or Retrospective Cohort Studies (RCSs) can offer valuable bound information to the counterfactual learning of ITE, which has never been used by existing ITE estimation methods. Hence, we further propose a CSA–Dragonnet with Embedded Prior Knowledge (CDNEPK) by formulating a unified expression of the prior knowledge given by RCTs or RCSs, inserting counterfactual prediction nets into CSA–Dragonnet and defining loss items based on the bounds for the ITE extracted from prior knowledge. Semi-synthetic data experiments showed that CDNEPK has superior performance. Real-world experiments indicated that CDNEPK can offer meaningful treatment advice.https://www.mdpi.com/1099-4300/24/7/975individual treatment effectsurvival datacounterfactual predictionprior knowledge
spellingShingle Yijie Zhao
Hao Zhou
Jin Gu
Hao Ye
Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction
Entropy
individual treatment effect
survival data
counterfactual prediction
prior knowledge
title Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction
title_full Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction
title_fullStr Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction
title_full_unstemmed Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction
title_short Estimating the Individual Treatment Effect on Survival Time Based on Prior Knowledge and Counterfactual Prediction
title_sort estimating the individual treatment effect on survival time based on prior knowledge and counterfactual prediction
topic individual treatment effect
survival data
counterfactual prediction
prior knowledge
url https://www.mdpi.com/1099-4300/24/7/975
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