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- W4377993346 abstract "In online experimentation, appropriate metrics (e.g., purchase) provide strong evidence to support hypotheses and enhance the decision-making process. However, incomplete metrics are frequently occurred in the online experimentation, making the available data to be much fewer than the planned online experiments (e.g., A/B testing). In this work, we introduce the concept of dropout buyers and categorize users with incomplete metric values into two groups: visitors and dropout buyers. For the analysis of incomplete metrics, we propose a clustering-based imputation method using k-nearest neighbors. Our proposed imputation method considers both the experiment-specific features and users’ activities along their shopping paths, allowing different imputation values for different users. To facilitate efficient imputation of large-scale data sets in online experimentation, the proposed method uses a combination of stratification and clustering. The performance of the proposed method is compared to several conventional methods in both simulation studies and a real online experiment at eBay." @default.
- W4377993346 created "2023-05-25" @default.
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- W4377993346 date "2023-01-01" @default.
- W4377993346 modified "2023-10-16" @default.
- W4377993346 title "Clustering-Based Imputation for Dropout Buyers in Large-Scale Online Experimentation" @default.
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- W4377993346 doi "https://doi.org/10.51387/23-nejsds33" @default.
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