cascading model

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Feb 27, 2021 · Artificial Intelligence

Optimizing Coarse Ranking Models for Short Video Recommendation: From GBDT to Dual‑Tower DNN and Cascading

This article details the practical upgrades of iQIYI's short‑video recommendation coarse‑ranking pipeline, moving from a GBDT model to a dual‑tower DNN, applying knowledge distillation, embedding compression, inference optimizations, and finally a cascade architecture to align with the fine‑ranking model while reducing resource consumption.