Abstract
As a primary goal of predictive analytics, uplift modeling is used to estimate what impact a specific action or treatment will have on an outcome. In convention, the treatment is evaluated as a success once the buyer has purchased following the treatment, regardless of the kinds of treatments and the corresponding cost. Obviously, it cannot be classified as a binary classification problem. Therefore, we extend the ordinary uplift model to support multi-treatments tasks. In order to reconcile this aspect of interpretability with tree-based models, we use random forest (RF) as our base model. We present Gross Merchandise Value (GMV)-based RF for uplift modeling (GRFlift): an uplift model, where typical commercial evaluation GMV is designed as novel tree splitting criteria to directly quantify the uplift achievement. A targeted regularization term is also designed to adjust the splitting distribution differences. The splitting process proposed in the model achieves the goal of maximizing profit while showing the optimal treatment assignment. The performance of our method is confirmed by the industrial data, synthetic data, and observation data. Consequently, distributing different moderate treatments to different users can achieve obvious attraction and avoid unnecessary investment.





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This work was supported by the Xianyang Key R&D Program under Grant No. S2021ZDYF-SF-0739.
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Yang, J., Wang, W., Dong, Y. et al. GRFlift: uplift modeling for multi-treatment within GMV constraints. Appl Intell 53, 4827–4840 (2023). https://doi.org/10.1007/s10489-022-03769-w
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DOI: https://doi.org/10.1007/s10489-022-03769-w