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guyulongcs / CIKM2020_DMT

Deep Multifaceted Transformers for Multi-objective Ranking in Large-Scale E-commerce Recommender Systems, CIKM 2020
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about bias feature #2

Closed weiguozhao closed 3 years ago

weiguozhao commented 3 years ago

请教一下，线上serve的时候bias feature是如何获取的？

因为线上serve构造特征的时候，预测当前target没办法获取下一个index或page的内容的吧？

guyulongcs commented 3 years ago

Thank you for your interest in our work. This question can be answered in Section 4.5 in our paper. In the online prediction stage, we didn't use the Bias Deep Neural Network or the bias features. We directly use the utility scores for ranking. You can think the bias features and bias score are both 0 simply.