Kuaishou Tech

Nov 12, 2025 · Artificial Intelligence

How KaiFG Lets Python Feature Engineering Run at C++ Speed

KaiFG, Kuaishou's self‑built AI Feature Generator, unifies fragmented feature extraction frameworks, replaces slow C++ compilation cycles with Python‑level development, and achieves near‑C++ performance through Codon‑based compilation, reference‑counted memory management, and aggressive LLVM optimizations, dramatically shortening iteration time.