Alibaba Cloud Developer

Jul 1, 2020 · Artificial Intelligence

Optimizing Search Timeliness: From Feature Extraction to Ranking Models

This article explains the concept of timeliness in search ranking, defines content and demand side metrics such as half‑life and time sensitivity, describes evaluation criteria, outlines feature extraction and labeling pipelines, and details the multi‑stage modeling, recall, and indexing strategies used to improve timely search results.