Meituan Technology Team

Dec 20, 2018 · Artificial Intelligence

Demystifying Learning to Rank: From Core Algorithms to Scalable Online Sorting Architecture

This article provides a comprehensive, system‑engineer‑focused guide to Learning to Rank, covering fundamental machine‑learning concepts, evaluation metrics such as Precision, nDCG and ERR, training‑testing‑inference stages, pointwise/pairwise/listwise methods, and a detailed multi‑layer online ranking architecture with feature, model and recall governance.