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Qunar Tech Salon
Qunar Tech Salon
Feb 27, 2020 · Artificial Intelligence

iQIYI Dual‑DNN Ranking Model with Online Knowledge Distillation

This article describes iQIYI’s dual‑DNN ranking architecture that combines a high‑capacity teacher network with a lightweight student network via online knowledge distillation, addressing the trade‑off between model effectiveness and inference efficiency in large‑scale recommendation systems.

CTR predictiondual DNNfeature interaction
0 likes · 12 min read
iQIYI Dual‑DNN Ranking Model with Online Knowledge Distillation
iQIYI Technical Product Team
iQIYI Technical Product Team
Feb 21, 2020 · Artificial Intelligence

Dual DNN Ranking Model with Online Knowledge Distillation for Recommender Systems

iQIYI’s dual‑DNN ranking model uses an online teacher‑student knowledge‑distillation framework where a complex teacher DNN shares representations with a lightweight student DNN, enabling end‑to‑end training, large‑scale feature crossing, and substantially higher recommendation accuracy while cutting inference latency and model size.

CTR predictiondual DNNfeature interaction
0 likes · 15 min read
Dual DNN Ranking Model with Online Knowledge Distillation for Recommender Systems