FESQL

DataFunTalk

Aug 30, 2020 · Big Data

Large-Scale Recommendation System Feature Engineering and Optimization with Spark and FESQL

This article explains how large-scale recommendation systems rely on efficient feature engineering, describes the three-layer architecture (offline, stream, online), and details how Spark SQL and the LLVM‑optimized FESQL engine improve performance and ensure offline‑online feature consistency.