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Estimation of Bedtimes of Reddit Users: Integrated Analysis of Time Stamps and Surveys
As an additional reassurance against overfitting, we employ k-fold cross-validation in which all 159 eligible labeled users are included in one run or another in the training set and in the testing set. The final model uses all labeled data in the training. The model is then applied to the application set, the remaining 50,000 users for whom time zone data but not bedtime data are available.
JMIR Form Res 2023;7:e38112
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