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Xiang Li

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Book Open access Jul 2026

Optimizing Marketing Subsidies via Counterfactual Learning with Asymmetric Reward Function

In marketing, optimizing subsidy allocation to maximize overall profits is of substantial economic importance. Prior research has employed treatment effect estimation techniques to identify subsidy-sensitive items and design corresponding allocation strategies. However, more accurate treatment effect estimations do not...

Xiang Li, Yanghao Xiao, Chun-Yuan Zheng et al. · 2 citations
Book Open access Aug 2026

Causality-Based Conformal Imputation Correction with Non-Random Missing Labels

This work proposes a model-agnostic framework to assess the accuracy of imputed labels and to correct imputations with large bias based on conformal prediction, and leverage conformal prediction to construct a valid prediction set for units with unobserved labels, and revise imputations that fall outside this set.

Chun-Yuan Zheng, Xiang Li, Hang Pan et al. · 0 citations
Book Open access Jul 2026

Debiased Recommendation Beyond the Positive Propensity Assumption

This study theoretically shows that when zero-propensity samples exist, both IPS and DR estimators become biased, and proposes ExtraDebias method, which enables debiased recommendation in both non-extrapolation and extrapolation samples.

Yanghao Xiao, Hao Wang, Xiang Li et al. · 1 citation

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